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.}

524
SXUS43 KGRB 281326
RECGRB
WIZ048-WIZ049-282100-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
826 AM CDT Tue Jul 28 2026

.TODAY...Northeast winds 5 to 15 knots. Sunny. Waves 1 to 2 feet.
Highs around 80.
.TONIGHT...East winds 5 to 10 knots veering southeast after
midnight. Mostly clear. Waves 1 foot or less. Lows in the lower
60s.
.WEDNESDAY...Northwest winds up to 5 knots backing southwest in
the afternoon. Sunny. Waves less than 1 foot. Highs in the lower
80s.
.WEDNESDAY NIGHT...Southwest winds up to 10 knots. Mostly clear.
Waves 1 foot or less. Lows in the mid 60s.

$$

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

    
                        

496

ASUS43 KGRB 282359

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

700 PM CDT TUE JUL 28 2026



WIZ005-009-010>012-018-019-290100-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       SUNNY     73  54  51 N3        29.96S

MANITOWISH WTR NOT AVBL

ARBOR VITAE    MOSUNNY   76  55  48 E5        29.96S

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    SUNNY     76  57  51 CALM      29.96R

PHILLIPS       PTSUNNY   76  61  59 NE3       29.95R

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        SUNNY     78  56  45 CALM      29.93S

$$



WIZ013-073-290100-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  SUNNY     76  56  49 NE5       29.93R

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-290100-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        PTSUNNY   77  63  61 CALM      29.94S

WAUSAU         NOT AVBL

MOSINEE        SUNNY     79  61  53 CALM      29.93R

MARSHFIELD     SUNNY     80  58  46 N3        29.93S

WISC RAPIDS    SUNNY     81  58  45 N7        29.92S

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        SUNNY     79  61  53 E7        29.92R

$$



WIZ038-039-048-051-290100-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  SUNNY     76  63  64 CALM      29.91R

APPLETON       MOSUNNY   79  59  50 VRB5      29.93R

OSHKOSH        SUNNY     75  59  57 E6        29.92R

FOND DU LAC    SUNNY     75  56  51 N8        29.92R

$$



WIZ022-050-052-290100-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      SUNNY     73  56  54 NE6       29.92R

SHEBOYGAN      SUNNY     71  56  58 NE7       29.91R

$$



LMZ563-521-522-541>543-290100-

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   67      20/  8/  9 1012.4F

KEWAUNEE LKSHORE 2330           20/  2/  4 1012.4R

NORTHPORT PIER   2300          320/  9/ 11 1013.2

N MID LAKE BUOY  2340   66 62  360/  8/ 10 1012.2R

MENOMINEE LKSHOR 2324   72 69   90/  3/  6 1012.6

$$

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.