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.}

334
SXUS43 KGRB 312051
RECGRB
WIZ048-WIZ049-010900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
351 PM CDT Sun May 31 2026

.REST OF THE AFTERNOON...Southeast winds around 5 knots. Mostly
sunny. Waves less than 1 foot. Near steady temperature in the
upper 60s.
.TONIGHT...South winds up to 5 knots. Partly cloudy. Waves less
than 1 foot. Lows in the lower 50s.
.MONDAY...Northeast winds up to 10 knots. Mostly sunny. Waves
less than 1 foot. Highs in the lower 70s.
.MONDAY NIGHT...East winds 5 to 10 knots. Mostly clear. Waves
1 foot or less. Lows in the lower 50s.
.TUESDAY...East winds 5 to 10 knots. Sunny. Waves less than
1 foot. Highs in the lower 70s.

$$

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

    
                        

074

ASUS43 KGRB 312210

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

500 PM CDT SUN MAY 31 2026



WIZ005-009-010>012-018-019-312300-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       MOSUNNY   72  40  31 VRB7      30.04F

MANITOWISH WTR MOSUNNY   77  33  19 E6        30.03F

ARBOR VITAE    MOSUNNY   76  37  24 W8        30.03F

EAGLE RIVER    MOSUNNY   78  24  13 CALM      30.03F

LAND O LAKES   MOSUNNY   79  31  17 E7        30.04F

RHINELANDER    MOSUNNY   75  44  33 W6        30.04F

PHILLIPS       NOT AVBL

ANTIGO         MOSUNNY   70  38  31 CALM      30.05F

TOMAHAWK       MOSUNNY   77  38  24 CALM      30.04F

MERRILL        MOSUNNY   76  37  25 NE3       30.02F

$$



WIZ013-073-312300-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  MOSUNNY   80  38  22 VRB6      30.00F

MARINETTE      MOSUNNY   70  45  40 SE10      30.04F

$$



WIZ017-030-035>037-045-312300-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        MOSUNNY   74  38  26 SE3       30.03F

WAUSAU         MOSUNNY   75  39  27 S6        30.02F

MOSINEE        NOT AVBL

MARSHFIELD     MOSUNNY   75  39  27 E6        30.02F

WISC RAPIDS    PTSUNNY   76  35  22 SE7       30.02F

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO          N/A     77  37  23 NE5       30.03F

CLINTONVILLE   MOSUNNY   75  43  31 SE6       30.04F

WAUTOMA        MOSUNNY   76  42  29 VRB5      30.01F

$$



WIZ038-039-048-051-312300-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  MOSUNNY   74  45  35 NE6       30.02F

APPLETON       MOSUNNY   77  39  25 S5        30.03F

OSHKOSH        MOSUNNY   72  42  34 E7        30.02F

FOND DU LAC    MOSUNNY   74  42  31 NE7       30.02F

$$



WIZ022-050-052-312300-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        MOSUNNY   67  38  33 S5        30.04F

WASHINGTON ISL SUNNY     64  40  41 SW9       30.03F

STURGEON BAY   MOSUNNY   68  42  38 SE6       30.06F

MANITOWOC      MOSUNNY   66  41  40 SE8       30.05F

SHEBOYGAN      MOSUNNY   70  37  29 E10       30.04F

$$



LMZ563-521-522-541>543-312300-

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 2200   57     170/  3/  4 1017.6F

KEWAUNEE LKSHORE 2124           50/  5/  6 1017.3

NORTHPORT PIER   2100          130/  6/  9 1018.6

MENOMINEE LKSHOR 2124   63 66  120/  7/  8 1017.4

$$

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.