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.}

296
SXUS43 KGRB 281821
RECGRB
WIZ048-WIZ049-282100-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
121 PM CDT Mon Sep 28 2026

.THIS AFTERNOON...Northeast winds up to 5 knots. Sunny. Waves
less than 1 foot. Near steady temperature in the upper 60s.
.TONIGHT...Southeast winds around 5 knots. Clear. Waves 1 foot or
less. Lows in the upper 50s.
.TUESDAY...South winds 5 to 10 knots. Mostly sunny. Waves 1 foot
or less. Highs in the lower 70s.
.TUESDAY NIGHT...South winds 10 to 15 knots. Chance of showers
after midnight. Waves 1 to 2 feet. Lows in the lower 60s.

$$

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

    
                        

860

ASUS43 KGRB 281859

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

200 PM CDT MON SEP 28 2026



WIZ005-009-010>012-018-019-282000-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       SUNNY     74  51  44 N3        30.11F

MANITOWISH WTR NOT AVBL

ARBOR VITAE    SUNNY     68  52  56 S8        30.12F

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    SUNNY     70  54  56 MISG      30.13F

PHILLIPS       SUNNY     72  54  54 SE5       30.11F

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        SUNNY     76  57  51 CALM      30.11F

$$



WIZ013-073-282000-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  MOSUNNY   75  48  38 N9        30.09F

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-282000-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        MOSUNNY   71  56  57 SE6       30.12F

WAUSAU         SUNNY     73  53  49 CALM      30.11F

MOSINEE        NOT AVBL

MARSHFIELD     MOSUNNY   74  57  55 CALM      30.11F

WISC RAPIDS    SUNNY     74  56  53 VRB3      30.10F

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        SUNNY     72  59  63 VRB3      30.10F

$$



WIZ038-039-048-051-282000-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  SUNNY     72  52  49 CALM      30.10F

APPLETON       MOSUNNY   75  57  53 CALM      30.10F

OSHKOSH        SUNNY     72  52  49 NE6       30.09F

FOND DU LAC    SUNNY     74  48  39 N6        30.09F

$$



WIZ022-050-052-282000-

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     69  54  58 SE8       30.10S

SHEBOYGAN      SUNNY     73  53  49 VRB3      30.09F

$$



LMZ563-521-522-541>543-282000-

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 1840   63     120/  3/  4 1019.2F

KEWAUNEE LKSHORE 1824           60/  5/  6 1019.1

NORTHPORT PIER   1800          290/  8/  9 1020.0

N MID LAKE BUOY  1840   64 66  320/  2/  4 1019.0F

CHAMBERS ISLAND  1840          360/  4/  5   N/A

MENOMINEE LKSHOR 1824   65 64   70/  4/  5 1019.3

$$

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.