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.}

424
SXUS43 KGRB 032057
RECGRB
WIZ048-WIZ049-040900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
357 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.}

    
                        

326

ASUS43 KGRB 032059

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

400 PM CDT SUN MAY 03 2026



WIZ005-009-010>012-018-019-032200-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       MOSUNNY   61  25  25 NW13G20   29.61F

MANITOWISH WTR NOT AVBL

ARBOR VITAE    NOT AVBL

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    PTSUNNY   67  29  24 NW14G32   29.57F

PHILLIPS       NOT AVBL

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-032200-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  MOSUNNY   69  39  33 W13G22    29.51F

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-032200-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        NOT AVBL

WAUSAU         NOT AVBL

MOSINEE        MOSUNNY   68  37  32 SW14G22   29.61F

MARSHFIELD     MOSUNNY   69  39  33 NW18G25   29.62F

WISC RAPIDS    MOSUNNY   71  34  25 W14G21    29.62F

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        MOSUNNY   71  38  29 SW15G22   29.61F

$$



WIZ038-039-048-051-032200-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  SUNNY     68  40  35 SW15G26   29.60F

APPLETON       MOSUNNY   70  43  37 SW16G28   29.62F

OSHKOSH        SUNNY     67  41  38 SW13G25   29.62F

FOND DU LAC    SUNNY     67  40  37 SW18G29   29.63F

$$



WIZ022-050-052-032200-

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 SW18G30   29.62F

SHEBOYGAN      MOSUNNY   67  41  38 SW20G30   29.64F

$$



LMZ563-521-522-541>543-032200-

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 2000   45     160/ 22/ 24 1004.8F

KEWAUNEE LKSHORE 2030          240/ 16/ 20 1002.6F

NORTHPORT PIER   2000          120/ 10/ 13 1002.7

MENOMINEE LKSHOR 2030   60 50  180/ 15/ 22 1000.0F

$$

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.