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.}

980
SXUS43 KGRB 042121
RECGRB
WIZ048-WIZ049-050900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
421 PM CDT Mon May 4 2026

.REST OF THE AFTERNOON...West winds around 15 knots with gusts to
around 30 knots. Slight chance of thunderstorms. Waves 1 foot or
less. Near steady temperature around 70.
.TONIGHT...Northwest winds 5 to 15 knots. Gusts up to 30 knots in
the evening. Mostly cloudy in the evening then becoming partly
cloudy. Waves 1 foot or less. Lows in the lower 40s.
.TUESDAY...West winds 5 to 15 knots. Mostly sunny. Waves 1 foot
or less. Highs in the lower 50s.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Partly cloudy.
Waves 1 foot or less. Lows in the upper 30s.
.WEDNESDAY...Northwest winds 5 to 10 knots. Partly sunny. Waves
1 foot or less. Highs around 50.

$$

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

    
                        

757

ASUS43 KGRB 042210

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

500 PM CDT MON MAY 04 2026



WIZ005-009-010>012-018-019-042300-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       MOSUNNY   50  28  42 W23G32    29.47R

MANITOWISH WTR PTSUNNY   56  29  35 NW15G30   29.43R

ARBOR VITAE    MOSUNNY   59  28  30 NW16G29   29.40R

EAGLE RIVER    PTSUNNY   60  24  25 NW16G26   29.39R

LAND O LAKES   MOSUNNY   56  30  36 NW13G22   29.42R

RHINELANDER    CLOUDY    61  29  29 W21G37    29.40R

PHILLIPS       MOSUNNY   58  31  36 NW12G23   29.43R

ANTIGO         CLOUDY    62  31  32 W20G30    29.40S

TOMAHAWK       MOSUNNY   63  28  26 W18G32    29.42R

MERRILL        NOT AVBL

$$



WIZ013-073-042300-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  PTSUNNY   65  32  29 W17G32    29.32R

MARINETTE      CLOUDY    70  28  21 W16G32    29.33R

OCONTO         CLOUDY    71  32  23 W15G36    29.34R

$$



WIZ017-030-035>037-045-042300-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        MOSUNNY   61  26  26 W21G35    29.44R

WAUSAU         PTSUNNY   64  30  27 W23G38    29.41S

MOSINEE        PTSUNNY   64  30  27 W17G28    29.42R

MARSHFIELD     PTSUNNY   62  29  28 W21G32    29.44R

WISC RAPIDS    PTSUNNY   67  29  24 W14G24    29.43S

STEVENS POINT  PTSUNNY   67  30  25 W17G33    29.43S

WAUPACA        PTSUNNY   72  28  19 W14G30    29.44R

SHAWANO        CLOUDY    69  21  16 W14G24    29.39R

CLINTONVILLE   PTSUNNY   69  32  25 W22G35    29.41R

WAUTOMA        PTSUNNY   70  32  24 W24G33    29.42R

$$



WIZ038-039-048-051-042300-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  PTSUNNY   71  38  29 W18G31    29.36R

APPLETON       PTSUNNY   73  39  29 W22G33    29.38R

OSHKOSH        PTSUNNY   72  42  34 W17G29    29.38R

FOND DU LAC    LGT RAIN  75  42  30 W15G24    29.38R

$$



WIZ022-050-052-042300-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        CLOUDY    66  31  26 W10G16    29.32R

WASHINGTON ISL CLOUDY    57  32  38 N8G18     29.31R

STURGEON BAY   CLOUDY    70  35  27 W18G24    29.34R

MANITOWOC      PTSUNNY   76  43  30 W15G22    29.35F

SHEBOYGAN      PTSUNNY   76  42  29 W16G32    29.36F

$$



LMZ563-521-522-541>543-042300-

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   77     250/ 24/ 32  993.4F

KEWAUNEE LKSHORE 2124          260/ 12/ 19  992.9

NORTHPORT PIER   2100          220/  7/ 23  993.2

MENOMINEE LKSHOR 2124   71 50  260/ 17/ 25  992.1

$$

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.