Lake Winnebago Forecast

Lake Winnebago Forecast About these forecasts

Forecast Graphics

Lake Winnebago Recreational Forecast
^{Note: Experimental product. Check product creation time to verify this is a current forecast.}

119
SXUS43 KGRB 210632
RECGRB
WIZ048-WIZ049-210900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
132 AM CDT Mon Apr 21 2025

.REST OF THE NIGHT...Southeast winds 15 to 25 knots. Rain showers
and chance of thunderstorms. Waves 2 to 4 feet. Near steady
temperature in the mid 40s.
.MONDAY...Southwest winds 15 to 25 knots veering west 20 to
25 knots in the afternoon. Rain showers likely in the morning,
then slight chance of rain showers in the afternoon. Waves 1 to
3 feet. Highs in the upper 40s.
.MONDAY NIGHT...West winds 10 to 20 knots easing to 5 to 10 knots
after midnight. Mostly clear. Waves 1 to 2 feet. Lows in the mid
30s.
.TUESDAY...Southeast winds up to 10 knots. Chance of rain showers
in the afternoon. Waves 1 foot or less. Highs in the lower 50s.

$$

Local Observations
^{Note: Check product creation time to verify this is a current product.}

    
                        

429

ASUS43 KGRB 210610

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

100 AM CDT MON APR 21 2025



WIZ005-009-010>012-018-019-210700-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       LGT RAIN  37  36  96 E10       29.89F

MANITOWISH WTR RAIN      35  35 100 NE9       29.84F

ARBOR VITAE    LGT RAIN  37  35  95 NE10      29.82F

EAGLE RIVER    LGT RAIN  36  36 100 NE12G22   29.85F

LAND O LAKES   MIX PCPN  36  36 100 NE8       29.89F

RHINELANDER    RAIN      37  50 100 E15G29    29.83F

PHILLIPS       LGT RAIN  37  37 100 NE8       29.80F

ANTIGO         LGT RAIN  36  35  96 E20G28    29.80F

TOMAHAWK       CLOUDY    38  34  85 MISG      29.82F

MERRILL        LGT RAIN  37  37 100 E12G18    29.77F

$$



WIZ013-073-210700-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLOUDY    38  33  82 E8G18     29.90F

MARINETTE      CLOUDY    41  36  82 E21       29.87F

OCONTO         CLOUDY    43  35  74 E9G18     29.84F

$$



WIZ017-030-035>037-045-210700-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        CLOUDY    37  37  97 E20G26    29.74F

WAUSAU         LGT RAIN  39  35  86 E15G33    29.75F FOG

MOSINEE        LGT RAIN  39  37  93 E13G26    29.74F

MARSHFIELD     CLOUDY    40  37  89 E15G32    29.71F

WISC RAPIDS    CLOUDY    41  38  89 E14G25    29.70F

STEVENS POINT  CLOUDY    41  39  93 NE18      29.73F

WAUPACA        CLOUDY    44  40  85 NE9G16    29.75F

SHAWANO        LGT RAIN  43  39  88 NE16G22   29.83F

CLINTONVILLE   LGT RAIN  40  38  93 E12       29.81F

WAUTOMA        CLOUDY    44  41  89 E8        29.72F

$$



WIZ038-039-048-051-210700-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  LGT RAIN  45  39  79 E13       29.80F

APPLETON       CLOUDY    46  41  81 E12G24    29.77F

OSHKOSH        LGT RAIN  46  41  82 SE26G37   29.71F

FOND DU LAC    LGT RAIN  45  39  79 SE25G39   29.71F

$$



WIZ022-050-052-210700-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        CLOUDY    39  33  80 E13G20    29.86F

WASHINGTON ISL CLOUDY    38  35  87 E14G22    29.91F

STURGEON BAY   CLOUDY    44  36  73 E13G18    29.85F

MANITOWOC      HVY RAIN  44  38  79 N3        29.85F

SHEBOYGAN      TSTM      44  39  82 E7        29.80F

$$



LMZ563-521-522-541>543-210700-

LAKESHORE



STATION/POSITION TIME  TEMP    WIND        PRES    VSBY  WAVE

                       AIR SEA DIR/SP/G                  HT/PER

                 (UTC) (F)     (DEG/KT/KT) (MB)    (MI)  (FT/S)

SHEBOYGAN LKSHOR 0600   44     110/  6/  8 1009.7F

KEWAUNEE LKSHORE 0530   42      50/ 14/ 18 1009.9F

NORTHPORT PIER   0500           40/ 21/ 25   N/A

CHAMBERS ISLAND  0540   42      10/ 14/ 18   N/A

MENOMINEE LKSHOR 0530   41 46   20/ 20/ 25 1011.0F

$$

Additional Data
^{Note: Check data times to verify information is current.}

Lake Winnebago Buoy
- INFOS WinnGB Project

Lake Winnebago Water Temperatures
- Latest hourly reading
- Last 21 days
- Daily stream water temps -- See bottom of report; including Lk Winnebago

About these Forecasts

This forecast is available during the boating season, usually April through the end of October. The forecast, both graphical and text, is generated several times per day with updates made when weather conditions become unrepresentative. Use with caution. Be sure to check the product creation time to verify that the forecast you are viewing is current. Forecasts are valid for either 36 or 48 hours dependent on issuance time. Forecast elements include winds, significant wave heights, sensible weather, and associated restrictions to visibility if applicable over the open lake waters.

A wave model is run by NWS in Green Bay which produces the wave height forecast for Lake Winnebago. Forecasters at NWS Green Bay develop the wind forecast that is used in the wave model. The wave model has been used on the Great Lakes and has been shown to do reasonably well.

The latest observations for sites along the lake are also being provided. You may ask “Are these really the kind of winds you can expect on the open area of a lake or reservoir?” Any lake recreationalist will probably tell you that the winds are often found to be stronger than what was forecast or seen at the surrounding observation sites. Studies have shown that there is approximately a 4 to 5 mph increase in sustained wind speeds on open bodies of water compared to the nearest airport. Keep in mind that this difference is over an open waterway and is not necessarily what one would find if they were boating in a protected pocket of the waterway or near a wind protected structure such as a tree line, an island or point.

Click here for more answers to some questions you may have regarding the Lake Winnebago Recreational Forecast.

We greatly value your input into ways to make the forecast and this website more useful. Please contact nws.greenbay@noaa.gov with any suggestions, comments or questions.

Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

Lake Winnebago Forecast