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.}

054
SXUS43 KGRB 272301
RECGRB
WIZ048-WIZ049-280900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
601 PM CDT Mon Apr 27 2026

.TONIGHT...South winds 15 to 20 knots veering west after
midnight. Chance of thunderstorms in the evening, then slight
chance of rain showers after midnight. Waves 1 to 3 feet. Lows in
the upper 40s.
.TUESDAY...West winds 10 to 20 knots. Mostly cloudy in the
morning then becoming mostly sunny. Waves 1 to 2 feet. Highs in
the mid 50s.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots veering northeast
after midnight. Mostly cloudy. Waves 1 foot or less. Lows in the
mid 40s.
.WEDNESDAY...North winds 5 to 10 knots. Partly sunny. Waves less
than 1 foot. Highs in the lower 50s.

$$

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

    
                        

250

ASUS43 KGRB 272359

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

700 PM CDT MON APR 27 2026



WIZ005-009-010>012-018-019-280100-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       LGT RAIN  53  51  93 SE13G20   29.43F

MANITOWISH WTR NOT AVBL

ARBOR VITAE    CLOUDY    52  51  97 S12G17    29.47F

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    CLOUDY    52  51  97 SE7       29.50F

PHILLIPS       LGT RAIN  54  52  95 S13       29.45F

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-280100-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLOUDY    51  51 100 SE8       29.53F FOG

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-280100-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        NOT AVBL

WAUSAU         NOT AVBL

MOSINEE        CLOUDY    54  54 100 SE8       29.51F FOG

MARSHFIELD     CLOUDY    56  54  93 SE10      29.48R

WISC RAPIDS    LGT RAIN  56  54  93 S7        29.50R

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        PTCLDY    58  55  90 E5        29.52R

$$



WIZ038-039-048-051-280100-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLOUDY    57  53  86 S16G28    29.54F

APPLETON       CLOUDY    57  55  94 SE13      29.54F

OSHKOSH        CLOUDY    55  53  93 SE15G21   29.52F FOG

FOND DU LAC    CLOUDY    56  54  93 SE9       29.54F

$$



WIZ022-050-052-280100-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   CLOUDY    59  52  77 S25G32    29.56F

MANITOWOC      CLOUDY    51  51 100 S22G29    29.58F

SHEBOYGAN      CLOUDY    53  51  93 S15G25    29.57F

$$



LMZ563-521-522-541>543-280100-

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 2300   47     180/ 22/ 25 1002.3F

KEWAUNEE LKSHORE 2324          180/ 16/ 20 1001.7

NORTHPORT PIER   2300          120/  4/  9 1003.4

MENOMINEE LKSHOR 2324   56 49  190/ 12/ 16 1000.7

$$

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.