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.}

748
SXUS43 KGRB 042217
RECGRB
WIZ048-WIZ049-050900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
517 PM CDT Sat Apr 4 2026

.REST OF THE AFTERNOON...West winds 10 to 15 knots. Chance of
sprinkles and slight chance of drizzle. Waves 1 to 3 feet. Near
steady temperature in the lower 40s.
.TONIGHT...West winds 15 to 20 knots. Slight chance of drizzle in
the evening. Waves 1 to 3 feet building to 2 to 4 feet after
midnight. Lows in the lower 30s.
.SUNDAY...Northwest winds 10 to 20 knots. Partly sunny in the
morning then clearing. Waves 2 to 4 feet subsiding to 1 to 3 feet
in the afternoon. Highs in the mid 40s.
.SUNDAY NIGHT...West winds 5 to 10 knots. Chance of rain. Waves
1 foot or less. Lows in the lower 30s.
.MONDAY...Northwest winds 10 to 20 knots. Partly sunny. Waves
1 to 3 feet building to 2 to 4 feet in the afternoon. Highs in
the upper 30s.

$$

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

    
                        

218

ASUS43 KGRB 042259

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

600 PM CDT SAT APR 04 2026



WIZ005-009-010>012-018-019-050000-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       LGT RAIN  34  32  92 W10       29.69F

MANITOWISH WTR NOT AVBL

ARBOR VITAE    NOT AVBL

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    CLOUDY    34  32  92 W12       29.69S

PHILLIPS       NOT AVBL

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-050000-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLOUDY    36  35  96 S3        29.67F

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-050000-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        NOT AVBL

WAUSAU         NOT AVBL

MOSINEE        CLOUDY    37  32  81 W18G28    29.75S

MARSHFIELD     CLOUDY    36  29  75 W13G22    29.76S

WISC RAPIDS    LGT RAIN  38  31  76 W9G22     29.79S

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        CLOUDY    41  31  67 W16       29.80S

$$



WIZ038-039-048-051-050000-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLOUDY    43  36  76 W20G30    29.75S

APPLETON       CLOUDY    43  37  81 W16G25    29.77S

OSHKOSH        CLOUDY    41  32  70 W8G22     29.78S

FOND DU LAC    CLOUDY    42  33  70 W13G23    29.80S

$$



WIZ022-050-052-050000-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      CLOUDY    43  38  82 W15G22    29.77S

SHEBOYGAN      CLOUDY    43  35  73 W15G30    29.79R

$$



LMZ563-521-522-541>543-050000-

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   45     250/ 18/ 21 1008.3R

KEWAUNEE LKSHORE 2224   44     260/  9/ 14 1006.9

NORTHPORT PIER   2200          250/  4/ 10   N/A

MENOMINEE LKSHOR 2224   39 37  230/ 10/ 14 1006.2

$$

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.