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.}

530
SXUS43 KGRB 130251
RECGRB
WIZ048-WIZ049-130400-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
951 PM CDT Fri Jun 12 2026

.TONIGHT...Southwest winds 5 to 10 knots. Slight chance of
thunderstorms after midnight. Waves 1 foot or less. Lows in the
lower 60s.
.SATURDAY...Southwest winds 10 to 15 knots. Chance of
thunderstorms in the afternoon. Waves 1 foot or less. Highs in
the mid 70s.
.SATURDAY NIGHT...Northwest winds 10 to 15 knots. Chance of
thunderstorms in the evening. Waves 1 foot or less. Lows in the
mid 50s.
.SUNDAY...Northwest winds 10 to 15 knots. Mostly sunny. Waves
1 to 3 feet. Highs in the mid 60s.

$$

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

    
                        

663

ASUS43 KGRB 130459

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

1200 AM CDT SAT JUN 13 2026



WIZ005-009-010>012-018-019-130600-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       PTCLDY    63  50  62 SW9       29.75S

MANITOWISH WTR NOT AVBL

ARBOR VITAE    PTCLDY    61  53  76 SW12G24   29.81R

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    MOCLDY    58  56  93 SW12G18   29.85R

PHILLIPS       NOT AVBL

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-130600-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  PTCLDY    61  50  67 S7        29.78S

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-130600-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        NOT AVBL

WAUSAU         NOT AVBL

MOSINEE        NOT AVBL

MARSHFIELD     CLOUDY    62  56  80 CALM      29.85F

WISC RAPIDS    MOCLDY    65  55  70 CALM      29.85R

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        PTCLDY    65  55  70 SW3       29.87S

$$



WIZ038-039-048-051-130600-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLEAR     65  53  65 S5        29.84R

APPLETON       NOT AVBL

OSHKOSH        CLEAR     66  56  70 S9        29.86S

FOND DU LAC    CLEAR     66  56  70 SW10      29.88S

$$



WIZ022-050-052-130600-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      CLEAR     66  55  67 SW6       29.88R

SHEBOYGAN      CLEAR     62  55  77 SW6       29.89R

$$



LMZ563-521-522-541>543-130600-

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 0400   71     220/ 10/ 12 1011.4R

KEWAUNEE LKSHORE 0424          220/  5/  7 1010.4

NORTHPORT PIER   0400          190/  2/  3 1010.2

N MID LAKE BUOY  0440   54 50  210/  8/ 10 1009.5R

MENOMINEE LKSHOR 0424   69 71  210/  8/ 10 1009.6

$$

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.