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.}

982
SXUS43 KGRB 280251
RECGRB
WIZ048-WIZ049-280400-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
951 PM CDT Thu Aug 27 2026

.TONIGHT...Southeast winds 5 to 10 knots. Partly cloudy. Waves
1 foot or less. Lows in the lower 60s.
.FRIDAY...Southeast winds 5 to 10 knots. Mostly sunny. Waves
1 foot or less. Highs in the upper 70s.
.FRIDAY NIGHT...South winds 5 to 10 knots. Partly cloudy. Waves
1 foot or less. Lows in the mid 60s.
.SATURDAY...Southwest winds around 10 knots. Partly sunny. Waves
1 to 3 feet. Highs in the upper 70s.

$$

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

    
                        

401

ASUS43 KGRB 280459

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

1200 AM CDT FRI AUG 28 2026



WIZ005-009-010>012-018-019-280600-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       CLEAR     51  49  92 CALM      30.09S

MANITOWISH WTR NOT AVBL

ARBOR VITAE    NOT AVBL

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    PTCLDY    59  52  77 E3        30.10S

PHILLIPS       CLEAR     54  53  96 CALM      30.09S

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-280600-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLEAR     57  50  77 CALM      30.08S

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-280600-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        CLEAR     55  55  97 CALM      30.08S

WAUSAU         CLEAR     64  54  69 CALM      30.07R

MOSINEE        NOT AVBL

MARSHFIELD     CLEAR     64  54  69 NE5       30.07R

WISC RAPIDS    PTCLDY    59  55  87 CALM      30.06R

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        CLEAR     58  56  93 CALM      30.06S

$$



WIZ038-039-048-051-280600-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  MOCLDY    60  56  86 E5        30.07R

APPLETON       NOT AVBL

OSHKOSH        CLEAR     60  56  86 S7        30.06R

FOND DU LAC    CLEAR     60  57  89 S6        30.07R

$$



WIZ022-050-052-280600-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      MOCLDY    58  58 100 CALM      30.07S

SHEBOYGAN      CLEAR     55  54  96 CALM      30.07R

$$



LMZ563-521-522-541>543-280600-

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 0440   69     190/  3/  5 1017.9R

KEWAUNEE LKSHORE 0406          110/  2/  4 1017.8

NORTHPORT PIER   0400           30/  5/  8 1019.3

N MID LAKE BUOY  0440   67 69   40/  6/  6 1018.2R

CHAMBERS ISLAND  0440   64      70/  3/  7   N/A

MENOMINEE LKSHOR 0406   67 70  110/  7/  8 1018.4

$$

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.