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.}

112
SXUS43 KGRB 032041
RECGRB
WIZ048-WIZ049-040900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
341 PM CDT Sun May 3 2026

.REST OF THE AFTERNOON...Southwest winds 10 to 15 knots with
gusts to around 30 knots. Chance of sprinkles. Waves 1 foot or
less. Near steady temperature in the lower 60s.
.TONIGHT...Southwest winds 5 to 10 knots. Chance of sprinkles in
the evening. Waves 1 foot or less. Lows in the mid 40s.
.MONDAY...Southwest winds 10 to 20 knots. Chance of rain showers
and slight chance of thunderstorms in the afternoon. Waves 1 to
3 feet. Highs in the upper 60s.
.MONDAY NIGHT...Northwest winds 10 to 15 knots. Mostly cloudy.
Waves 1 foot or less. Lows in the lower 40s.
.TUESDAY...Northwest winds around 10 knots. Partly sunny. Waves
1 foot or less. Highs in the lower 50s.

$$

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

    
                        

539

ASUS43 KGRB 031959

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

300 PM CDT SUN MAY 03 2026



WIZ005-009-010>012-018-019-032100-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       MOSUNNY   62  31  31 NW16G23   29.62S

MANITOWISH WTR NOT AVBL

ARBOR VITAE    MOSUNNY   68  32  26 W16G24    29.59F

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    PTSUNNY   65  32  29 W15G23    29.59F

PHILLIPS       MOSUNNY   65  34  32 W8G17     29.61F

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-032100-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  LGT RAIN  64  40  41 W8        29.54F

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-032100-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        NOT AVBL

WAUSAU         NOT AVBL

MOSINEE        MOSUNNY   66  41  39 W14G21    29.62F

MARSHFIELD     MOSUNNY   68  37  32 W12G23    29.63F

WISC RAPIDS    MOSUNNY   71  36  27 W16G24    29.63F

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        SUNNY     70  39  32 SW15G24   29.63F

$$



WIZ038-039-048-051-032100-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  SUNNY     67  42  40 SW15G23   29.62F

APPLETON       MOSUNNY   70  43  37 SW18G28   29.64F

OSHKOSH        SUNNY     66  41  40 SW13G23   29.65F

FOND DU LAC    MOSUNNY   65  40  39 SW17G29   29.66F

$$



WIZ022-050-052-032100-

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     66  40  38 SW22G29   29.65F

SHEBOYGAN      MOSUNNY   66  40  38 SW24G31   29.67F

$$



LMZ563-521-522-541>543-032100-

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 1900   62     220/ 21/ 27 1005.4F

KEWAUNEE LKSHORE 1924          220/ 15/ 21 1003.8

NORTHPORT PIER   1900          120/ 13/ 17 1003.7

MENOMINEE LKSHOR 1924   58 50  170/ 14/ 19 1001.4

$$

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.