National Weather Service United States Department of Commerce

NOTE:  Climate information is PRELIMINARY DATA.
CERTIFIED climate data is available from the
National Centers for Environmental Information, or from the
Midwestern Regional Climate Center.

 

Preliminary data based on the Real-Time Mesoscale Analysis
(RTMA)



24-hour high temperatures
Observed data reported by NWS, FAA and cooperative weather observers
 
925 AM CDT Sat May 23 2026

Automated and Cooperative Observer Reports
Values represent high and low temperatures
for the 24-hour period ending around 7 am.

          Location               High   Low  

...NORTHERN ILLINOIS...
Aurora                            70     48  
Aurora/Sugar Grove Arpt           71     51  
Barrington                        65     50  
Batavia                           71     54  
Chicago Midway Arpt               67     53  
Chicago O'Hare Arpt               66     52  
Coal City 4NNW                    73     56  
DeKalb Municipal Arpt             70     49  
DeKalb Northern IL Univ           70     52  
Elgin                             68     52  
Elizabeth                         70     50  
Freeport                          70     52  
Freeport/Albertus Arpt            71     50  
Gladstone L&D 18                  69     51  
Greater Kankakee Arpt             76     55  
Illinois City L&D 16              69     56  
Joliet Rgl Arpt                   73     55  
Kewanee                           72     55  
Lansing Municipal Arpt            69     54  
Marseilles                        76     61  
Moline/Quad Cities Arpt           70     54  
Morris                            72     57  
New Boston L&D 17                 70     56  
Park Forest                       72     54  
Peru/IL Valley Rgl Arpt           73     55  
Rochelle Municipal Arpt           73     51  
Romeoville/NWS Chicago            69     51  
Savanna/Tri-Township Arpt         72     54  
Schaumburg Rgl Arpt               67     51  
Sterling/Rock Falls Arpt          72     53  
Stockton                          70     51  
Waukegan Rgl Arpt                 63     48  
West Chicago/DuPage Arpt          69     47  
Wheeling/Chicago Exec Arpt        64     50  

...CENTRAL ILLINOIS...
Aledo                             68     54  
Avon                              67     56  
Bentley                           68     59  
Bloomington/Cntrl IL Rgl Arpt     73     54  
Champaign 3S                                 
Champaign/Willard Arpt            72     54  
Coles County Arpt                 67     54  
Danville/Vermilion Rgl Arpt       72     54  
Decatur Arpt                      69     54  
Edgar County Arpt                 67     53  
Galesburg Municipal Arpt          68     55  
Galesburg Water Plant             68     55  
Jacksonville 2                    68     60  
Jacksonville Municipal Arpt       68     59  
Knoxville                         68     57  
La Harpe                          68     58  
Lacon/Marshall Co Arpt            73     54  
Lincoln NWS                       71     55  
Macomb Municipal Arpt             69     56  
Minonk                            74     55  
Morrisonville                     69     63  
Normal 4NE                        75     55  
Ogden                             77     54  
Pana                              67     57  
Paris                             67     54  
Peoria Intl Arpt                  72     57  
Pittsfield/Penstone Arpt          68     61  
Pontiac Municipal Arpt            76     56  
Quincy L&D 21                     71     61  
Quincy Rgl Arpt                   69     56  
Rantoul Aviation Center           73     54  
Shelbyville Dam                   65     56  
Sidell 4N                         72     59  
Springfield/Capital Arpt          69     57  
Tuscola                           70     56  
White Hall 1 E                    66     59  
Windsor                           66     54  

...SOUTHERN ILLINOIS...
Alton/Mel Price L&D               68     61  
Anna                              64     61  
Cahokia/Parks Arpt                68     61  
Carbondale/Southern IL Arpt       66     63  
Casey                             68     55  
Crawford County Arpt              67     59  
Effingham Co Arpt                 66     59  
Fairfield Municipal Arpt          65     60  
Grand Chain Dam                   70     64  
Harrisburg Arpt                   66     62  
Kaskaskia L&D                     66     61  
Lawrenceville/Vincennes Arpt      65     58  
Millstadt                         66     60  
Mt Carmel Municipal Arpt          67     62  
Mt Vernon                         68     61  
Olney/Noble Arpt                  67     60  
Salem                             67     60  
Salem/Leckrone Arpt               67     61  
Smithland Dam                     67     62  

$$

Preliminary data based on the Real-Time Mesoscale Analysis
(RTMA)


 

24-hour low temperatures

Observed data from NWS, FAA, and cooperative weather observers

 

925 AM CDT Sat May 23 2026

Automated and Cooperative Observer Reports
Values represent high and low temperatures
for the 24-hour period ending around 7 am.

          Location               High   Low  

...NORTHERN ILLINOIS...
Aurora                            70     48  
Aurora/Sugar Grove Arpt           71     51  
Barrington                        65     50  
Batavia                           71     54  
Chicago Midway Arpt               67     53  
Chicago O'Hare Arpt               66     52  
Coal City 4NNW                    73     56  
DeKalb Municipal Arpt             70     49  
DeKalb Northern IL Univ           70     52  
Elgin                             68     52  
Elizabeth                         70     50  
Freeport                          70     52  
Freeport/Albertus Arpt            71     50  
Gladstone L&D 18                  69     51  
Greater Kankakee Arpt             76     55  
Illinois City L&D 16              69     56  
Joliet Rgl Arpt                   73     55  
Kewanee                           72     55  
Lansing Municipal Arpt            69     54  
Marseilles                        76     61  
Moline/Quad Cities Arpt           70     54  
Morris                            72     57  
New Boston L&D 17                 70     56  
Park Forest                       72     54  
Peru/IL Valley Rgl Arpt           73     55  
Rochelle Municipal Arpt           73     51  
Romeoville/NWS Chicago            69     51  
Savanna/Tri-Township Arpt         72     54  
Schaumburg Rgl Arpt               67     51  
Sterling/Rock Falls Arpt          72     53  
Stockton                          70     51  
Waukegan Rgl Arpt                 63     48  
West Chicago/DuPage Arpt          69     47  
Wheeling/Chicago Exec Arpt        64     50  

...CENTRAL ILLINOIS...
Aledo                             68     54  
Avon                              67     56  
Bentley                           68     59  
Bloomington/Cntrl IL Rgl Arpt     73     54  
Champaign 3S                                 
Champaign/Willard Arpt            72     54  
Coles County Arpt                 67     54  
Danville/Vermilion Rgl Arpt       72     54  
Decatur Arpt                      69     54  
Edgar County Arpt                 67     53  
Galesburg Municipal Arpt          68     55  
Galesburg Water Plant             68     55  
Jacksonville 2                    68     60  
Jacksonville Municipal Arpt       68     59  
Knoxville                         68     57  
La Harpe                          68     58  
Lacon/Marshall Co Arpt            73     54  
Lincoln NWS                       71     55  
Macomb Municipal Arpt             69     56  
Minonk                            74     55  
Morrisonville                     69     63  
Normal 4NE                        75     55  
Ogden                             77     54  
Pana                              67     57  
Paris                             67     54  
Peoria Intl Arpt                  72     57  
Pittsfield/Penstone Arpt          68     61  
Pontiac Municipal Arpt            76     56  
Quincy L&D 21                     71     61  
Quincy Rgl Arpt                   69     56  
Rantoul Aviation Center           73     54  
Shelbyville Dam                   65     56  
Sidell 4N                         72     59  
Springfield/Capital Arpt          69     57  
Tuscola                           70     56  
White Hall 1 E                    66     59  
Windsor                           66     54  

...SOUTHERN ILLINOIS...
Alton/Mel Price L&D               68     61  
Anna                              64     61  
Cahokia/Parks Arpt                68     61  
Carbondale/Southern IL Arpt       66     63  
Casey                             68     55  
Crawford County Arpt              67     59  
Effingham Co Arpt                 66     59  
Fairfield Municipal Arpt          65     60  
Grand Chain Dam                   70     64  
Harrisburg Arpt                   66     62  
Kaskaskia L&D                     66     61  
Lawrenceville/Vincennes Arpt      65     58  
Millstadt                         66     60  
Mt Carmel Municipal Arpt          67     62  
Mt Vernon                         68     61  
Olney/Noble Arpt                  67     60  
Salem                             67     60  
Salem/Leckrone Arpt               67     61  
Smithland Dam                     67     62  

$$

               

Preliminary data based on the Real-Time Mesoscale Analysis
(RTMA)


 

24-hour precipitation

 

CoCoRaHS Observations:
Enlarge imagego to CoCoRaHS Page

CoCoRaHS Observations

Observations from NWS, FAA and cooperative weather observers

920 AM CDT Sat May 23 2026

Automated and Cooperative Observer Reports
Values represent precipitation and snowfall
for the 24-hour period ending around 7 am.

          Location               Pcpn   Snow   Depth  

...NORTHERN ILLINOIS...
Aurora                           0.00                 
Aurora/Sugar Grove Arpt          0.00                 
Barrington                         T     0.0     0    
Batavia                          0.00    0.0     0    
Bourbonnais                      0.00    0.0     0    
Chicago Midway Arpt              0.14                 
Chicago O'Hare Arpt              0.00                 
Coal City 4NNW                   0.00    0.0     0    
DeKalb Northern IL Univ          0.00    0.0     0    
Elgin                            0.00    0.0     0    
Elizabeth                        0.00    0.0     0    
Freeport                         0.00                 
Gladstone L&D 18                 0.00    0.0     0    
Illinois City L&D 16             0.00    0.0     0    
Kewanee                          0.00    0.0     0    
Lansing                          0.00    0.0     0    
Marseilles                       0.00                 
Mendota                          0.00                 
Moline/Quad Cities Arpt          0.00                 
Monee                            0.01    0.0     0    
Morris                           0.00    0.0     0    
New Boston L&D 17                0.00                 
Park Forest                      0.00    0.0          
Romeoville/NWS Chicago           0.00    0.0     0    
Steward                          0.00    0.0     0    
Stockton                         0.01    0.0     0    
Waukegan Rgl Arpt                0.00                 
West Chicago/DuPage Arpt         0.00                 
Wheeling/Chicago Exec Arpt       0.00                 
Woodstock 5NW                    0.00    0.0     0    

...CENTRAL ILLINOIS...
Aledo                            0.00    0.0     0    
Arthur 1W                        0.00    0.0     0    
Athens 4SW                       0.00                 
Avon                             0.00    0.0     0    
Bentley                          0.00                 
Bloomington/Cntrl IL Rgl Arpt    0.00                 
Champaign/Willard Arpt           0.00                 
Cisco                            0.00    0.0     0    
Coles County Arpt                0.17                 
Decatur Arpt                     0.00                 
Galesburg Water Plant            0.00                 
Jacksonville 2                   0.00    0.0     0    
Knoxville                        0.00    0.0     0    
La Harpe                         0.00                 
Lake Springfield                 0.00                 
Lincoln NWS                      0.00    0.0     0    
Lovington                        0.12                 
Minonk                           0.00                 
Morrisonville                    0.00                 
Moweaqua 2S                      0.08                 
Normal 4NE                       0.00    0.0     0    
Ogden                            0.00    0.0     0    
Pana                             0.09                 
Paris                            0.03    0.0     0    
Peoria 5NW                       0.00    0.0     0    
Peoria Intl Arpt                 0.00                 
Quincy L&D 21                    0.00    0.0     0    
Quincy Rgl Arpt                  0.00                 
Rantoul                          0.00                 
Shelbyville Dam                  0.45    0.0     0    
Sherman                          0.00                 
Sidell 4N                        0.00                 
Springfield/Capital Arpt         0.00                 
Tuscola                          0.00    0.0     0    
White Hall 1 E                   0.00                 
Windsor                          0.04    0.0     0    

...SOUTHERN ILLINOIS...
Alton/Mel Price L&D              0.00    0.0     0    
Anna                             0.10                 
Beecher City                     0.01    0.0     0    
Carbondale/Southern IL Arpt      0.39                 
Casey                            0.13    0.0     0    
Centralia                        0.02                 
Clay City 6SSE                   0.10    0.0     0    
Edwardsville 2 W                 0.00                 
Grand Chain Dam                  0.20                 
Hutsonville                      0.04    0.0     0    
Kaskaskia L&D                    0.12                 
Lawrenceville/Vincennes Arpt     0.01                 
Millstadt                        0.00                 
Mt Vernon                        0.10                 
Neoga                            0.05    0.0     0    
Salem                            0.02    0.0     0    
Smithland Dam                    0.59    0.0     0    

$$
                 




Preliminary data based on analysis from the NWS
National Operational Hydrologic Remote Sensing Center
(NOHRSC)

 

24-hour snowfall
 

CoCoRaHS Observations:
Enlarge mapgo to CoCoRaHS Page

CoCoRaHS Observations

Observations from NWS, FAA and cooperative weather observers

920 AM CDT Sat May 23 2026

Automated and Cooperative Observer Reports
Values represent precipitation and snowfall
for the 24-hour period ending around 7 am.

          Location               Pcpn   Snow   Depth  

...NORTHERN ILLINOIS...
Aurora                           0.00                 
Aurora/Sugar Grove Arpt          0.00                 
Barrington                         T     0.0     0    
Batavia                          0.00    0.0     0    
Bourbonnais                      0.00    0.0     0    
Chicago Midway Arpt              0.14                 
Chicago O'Hare Arpt              0.00                 
Coal City 4NNW                   0.00    0.0     0    
DeKalb Northern IL Univ          0.00    0.0     0    
Elgin                            0.00    0.0     0    
Elizabeth                        0.00    0.0     0    
Freeport                         0.00                 
Gladstone L&D 18                 0.00    0.0     0    
Illinois City L&D 16             0.00    0.0     0    
Kewanee                          0.00    0.0     0    
Lansing                          0.00    0.0     0    
Marseilles                       0.00                 
Mendota                          0.00                 
Moline/Quad Cities Arpt          0.00                 
Monee                            0.01    0.0     0    
Morris                           0.00    0.0     0    
New Boston L&D 17                0.00                 
Park Forest                      0.00    0.0          
Romeoville/NWS Chicago           0.00    0.0     0    
Steward                          0.00    0.0     0    
Stockton                         0.01    0.0     0    
Waukegan Rgl Arpt                0.00                 
West Chicago/DuPage Arpt         0.00                 
Wheeling/Chicago Exec Arpt       0.00                 
Woodstock 5NW                    0.00    0.0     0    

...CENTRAL ILLINOIS...
Aledo                            0.00    0.0     0    
Arthur 1W                        0.00    0.0     0    
Athens 4SW                       0.00                 
Avon                             0.00    0.0     0    
Bentley                          0.00                 
Bloomington/Cntrl IL Rgl Arpt    0.00                 
Champaign/Willard Arpt           0.00                 
Cisco                            0.00    0.0     0    
Coles County Arpt                0.17                 
Decatur Arpt                     0.00                 
Galesburg Water Plant            0.00                 
Jacksonville 2                   0.00    0.0     0    
Knoxville                        0.00    0.0     0    
La Harpe                         0.00                 
Lake Springfield                 0.00                 
Lincoln NWS                      0.00    0.0     0    
Lovington                        0.12                 
Minonk                           0.00                 
Morrisonville                    0.00                 
Moweaqua 2S                      0.08                 
Normal 4NE                       0.00    0.0     0    
Ogden                            0.00    0.0     0    
Pana                             0.09                 
Paris                            0.03    0.0     0    
Peoria 5NW                       0.00    0.0     0    
Peoria Intl Arpt                 0.00                 
Quincy L&D 21                    0.00    0.0     0    
Quincy Rgl Arpt                  0.00                 
Rantoul                          0.00                 
Shelbyville Dam                  0.45    0.0     0    
Sherman                          0.00                 
Sidell 4N                        0.00                 
Springfield/Capital Arpt         0.00                 
Tuscola                          0.00    0.0     0    
White Hall 1 E                   0.00                 
Windsor                          0.04    0.0     0    

...SOUTHERN ILLINOIS...
Alton/Mel Price L&D              0.00    0.0     0    
Anna                             0.10                 
Beecher City                     0.01    0.0     0    
Carbondale/Southern IL Arpt      0.39                 
Casey                            0.13    0.0     0    
Centralia                        0.02                 
Clay City 6SSE                   0.10    0.0     0    
Edwardsville 2 W                 0.00                 
Grand Chain Dam                  0.20                 
Hutsonville                      0.04    0.0     0    
Kaskaskia L&D                    0.12                 
Lawrenceville/Vincennes Arpt     0.01                 
Millstadt                        0.00                 
Mt Vernon                        0.10                 
Neoga                            0.05    0.0     0    
Salem                            0.02    0.0     0    
Smithland Dam                    0.59    0.0     0    

$$

Preliminary data based on analysis from the NWS
National Operational Hydrologic Remote Sensing Center
(NOHRSC)

 

24-hour snowfall
 

CoCoRaHS Observations:
Enlarge mapgo to CoCoRaHS Page

CoCoRaHS Observations

Observations from NWS, FAA and cooperative weather observers

920 AM CDT Sat May 23 2026

Automated and Cooperative Observer Reports
Values represent precipitation and snowfall
for the 24-hour period ending around 7 am.

          Location               Pcpn   Snow   Depth  

...NORTHERN ILLINOIS...
Aurora                           0.00                 
Aurora/Sugar Grove Arpt          0.00                 
Barrington                         T     0.0     0    
Batavia                          0.00    0.0     0    
Bourbonnais                      0.00    0.0     0    
Chicago Midway Arpt              0.14                 
Chicago O'Hare Arpt              0.00                 
Coal City 4NNW                   0.00    0.0     0    
DeKalb Northern IL Univ          0.00    0.0     0    
Elgin                            0.00    0.0     0    
Elizabeth                        0.00    0.0     0    
Freeport                         0.00                 
Gladstone L&D 18                 0.00    0.0     0    
Illinois City L&D 16             0.00    0.0     0    
Kewanee                          0.00    0.0     0    
Lansing                          0.00    0.0     0    
Marseilles                       0.00                 
Mendota                          0.00                 
Moline/Quad Cities Arpt          0.00                 
Monee                            0.01    0.0     0    
Morris                           0.00    0.0     0    
New Boston L&D 17                0.00                 
Park Forest                      0.00    0.0          
Romeoville/NWS Chicago           0.00    0.0     0    
Steward                          0.00    0.0     0    
Stockton                         0.01    0.0     0    
Waukegan Rgl Arpt                0.00                 
West Chicago/DuPage Arpt         0.00                 
Wheeling/Chicago Exec Arpt       0.00                 
Woodstock 5NW                    0.00    0.0     0    

...CENTRAL ILLINOIS...
Aledo                            0.00    0.0     0    
Arthur 1W                        0.00    0.0     0    
Athens 4SW                       0.00                 
Avon                             0.00    0.0     0    
Bentley                          0.00                 
Bloomington/Cntrl IL Rgl Arpt    0.00                 
Champaign/Willard Arpt           0.00                 
Cisco                            0.00    0.0     0    
Coles County Arpt                0.17                 
Decatur Arpt                     0.00                 
Galesburg Water Plant            0.00                 
Jacksonville 2                   0.00    0.0     0    
Knoxville                        0.00    0.0     0    
La Harpe                         0.00                 
Lake Springfield                 0.00                 
Lincoln NWS                      0.00    0.0     0    
Lovington                        0.12                 
Minonk                           0.00                 
Morrisonville                    0.00                 
Moweaqua 2S                      0.08                 
Normal 4NE                       0.00    0.0     0    
Ogden                            0.00    0.0     0    
Pana                             0.09                 
Paris                            0.03    0.0     0    
Peoria 5NW                       0.00    0.0     0    
Peoria Intl Arpt                 0.00                 
Quincy L&D 21                    0.00    0.0     0    
Quincy Rgl Arpt                  0.00                 
Rantoul                          0.00                 
Shelbyville Dam                  0.45    0.0     0    
Sherman                          0.00                 
Sidell 4N                        0.00                 
Springfield/Capital Arpt         0.00                 
Tuscola                          0.00    0.0     0    
White Hall 1 E                   0.00                 
Windsor                          0.04    0.0     0    

...SOUTHERN ILLINOIS...
Alton/Mel Price L&D              0.00    0.0     0    
Anna                             0.10                 
Beecher City                     0.01    0.0     0    
Carbondale/Southern IL Arpt      0.39                 
Casey                            0.13    0.0     0    
Centralia                        0.02                 
Clay City 6SSE                   0.10    0.0     0    
Edwardsville 2 W                 0.00                 
Grand Chain Dam                  0.20                 
Hutsonville                      0.04    0.0     0    
Kaskaskia L&D                    0.12                 
Lawrenceville/Vincennes Arpt     0.01                 
Millstadt                        0.00                 
Mt Vernon                        0.10                 
Neoga                            0.05    0.0     0    
Salem                            0.02    0.0     0    
Smithland Dam                    0.59    0.0     0    

$$
             




 

 

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