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.}

244
SXUS43 KGRB 250356
RECGRB
WIZ048-WIZ049-250500-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
1056 PM CDT Sun May 24 2026

.TONIGHT...South winds 5 to 10 knots. Mostly clear. Waves less
than 1 foot. Lows in the upper 50s.
.MONDAY...Southwest winds 5 to 10 knots. Mostly sunny. Waves
1 foot or less. Highs in the mid 70s.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Mostly clear.
Waves 1 foot or less. Lows in the lower 60s.
.TUESDAY...Southwest winds 5 to 10 knots. Sunny. Waves 1 foot or
less. Highs in the upper 70s.

$$

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

    
                        

032

ASUS43 KGRB 250312

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

1000 PM CDT SUN MAY 24 2026



WIZ005-009-010>012-018-019-250400-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       PTCLDY    63  47  55 S3        29.95R

MANITOWISH WTR PTCLDY    54  49  82 CALM      29.98R

ARBOR VITAE    NOT AVBL

EAGLE RIVER    PTCLDY    58  45  61 SW3       29.99R

LAND O LAKES   CLEAR     58  45  62 CALM      30.00S

RHINELANDER    PTCLDY    58  47  66 E5        30.01F

PHILLIPS       CLEAR     60  47  61 SE5       29.99R

ANTIGO         MOCLDY    55  48  76 N15       30.04R HAZE

TOMAHAWK       CLEAR     61  44  53 SE3       30.02S

MERRILL        NOT AVBL

$$



WIZ013-073-250400-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  PTCLDY    60  55  83 SW9       29.99R

MARINETTE      CLEAR     55  54  96 S6        30.02R

OCONTO         CLEAR     58  57  96 S6        30.01R

$$



WIZ017-030-035>037-045-250400-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        NOT AVBL

WAUSAU         PTCLDY    63  51  65 CALM      30.00R

MOSINEE        CLEAR     61  50  67 SE3       30.01R

MARSHFIELD     PTCLDY    64  49  57 CALM      30.00R

WISC RAPIDS    PTCLDY    60  51  72 CALM      30.00R

STEVENS POINT  PTCLDY    61  50  67 CALM      30.01R

WAUPACA        CLEAR     64  51  62 CALM      30.04R

SHAWANO          N/A     59  49  70 CALM      30.01R

CLINTONVILLE   CLEAR     61  51  69 CALM      30.02R

WAUTOMA        PTCLDY    61  53  75 CALM      30.01R

$$



WIZ038-039-048-051-250400-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLEAR     59  53  80 SE6       30.01R

APPLETON       PTCLDY    66  48  52 VRB3      30.01R

OSHKOSH        CLEAR     60  47  61 S6        30.01R

FOND DU LAC    CLEAR     58  52  80 SE8       30.02R

$$



WIZ022-050-052-250400-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        CLEAR     51  50  97 S7        30.01R

WASHINGTON ISL MOCLDY    49  46  88 S7        30.00F FOG

STURGEON BAY   CLEAR     54  53  97 S12       30.03R

MANITOWOC      CLEAR     55  55 100 S6        30.04R

SHEBOYGAN      CLEAR     55  53  93 S7        30.04R

$$



LMZ563-521-522-541>543-250400-

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 0300   52     190/  9/ 10 1017.5R

KEWAUNEE LKSHORE 0224          170/  7/  9 1016.2

NORTHPORT PIER   0200          140/  8/ 13 1016.9

MENOMINEE LKSHOR 0224   55 60  170/ 11/ 15 1015.6

$$

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.