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.}

087
SXUS43 KGRB 220851
RECGRB
WIZ048-WIZ049-222100-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
351 AM CDT Mon Jun 22 2026

.EARLY THIS MORNING...Northeast winds 5 to 10 knots. Partly
cloudy. Waves 1 foot or less. Near steady temperature in the mid
50s.
.TODAY...Northeast winds 5 to 10 knots. Sunny. Waves 1 foot or
less. Highs in the lower 70s.
.TONIGHT...East winds up to 10 knots. Mostly clear. Waves 1 foot
or less. Lows in the mid 50s.
.TUESDAY...East winds up to 5 knots. Sunny. Waves less than
1 foot. Highs in the mid 70s.
.TUESDAY NIGHT...South winds 5 to 10 knots. Rain showers after
midnight. Waves 1 foot or less. Lows in the upper 50s.

$$

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

    
                        

881

ASUS43 KGRB 220859

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

400 AM CDT MON JUN 22 2026



WIZ005-009-010>012-018-019-221000-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       CLEAR     38  38 100 CALM      30.05S

MANITOWISH WTR NOT AVBL

ARBOR VITAE    CLEAR     45  44  96 CALM      30.03S

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    CLEAR     48  48 100 CALM      30.03R

PHILLIPS       NOT AVBL

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-221000-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  PTCLDY    49  49 100 CALM      30.00R

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-221000-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        NOT AVBL

WAUSAU         CLEAR     55  53  93 NW5       30.00R

MOSINEE        NOT AVBL

MARSHFIELD     CLEAR     56  54  93 NE8       29.99R

WISC RAPIDS    CLEAR     56  54  93 NE7       29.98R

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        MOCLDY    50  49  96 CALM      29.96F

$$



WIZ038-039-048-051-221000-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLOUDY    59  57  93 NE6       29.96S

APPLETON       CLOUDY    59  55  88 N3        29.97R

OSHKOSH        PTCLDY    54  52  93 CALM      29.95S

FOND DU LAC    PTCLDY    49  49 100 CALM      29.97R

$$



WIZ022-050-052-221000-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      PTCLDY    51  51 100 CALM      29.97R

SHEBOYGAN      FOG       51  51 100 CALM      29.96R VSB 1/2

$$



LMZ563-521-522-541>543-221000-

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 0800   56     340/  5/  5 1014.4R

KEWAUNEE LKSHORE 0812           10/  2/  4   N/A

NORTHPORT PIER   0800          340/  8/ 11 1015.9

N MID LAKE BUOY  0840   56 55   40/ 12/ 12 1014.7S

MENOMINEE LKSHOR 0812           10/ 12/ 13   N/A

$$

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.