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.}

023
SXUS43 KGRB 290236
RECGRB
WIZ048-WIZ049-290345-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
936 PM CDT Tue Apr 28 2026

.TONIGHT...Northwest winds 5 to 10 knots veering northeast after
midnight. Mostly cloudy. Waves 1 foot or less. Lows in the lower
40s.
.WEDNESDAY...Northeast winds around 5 knots backing northwest in
the afternoon. Slight chance of rain showers in the morning, then
chance of rain showers and slight chance of thunderstorms in the
afternoon. Waves 1 foot or less. Highs in the lower 50s.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Chance of rain
showers and slight chance of thunderstorms in the evening, then
slight chance of rain showers after midnight. Waves 1 foot or
less. Lows in the upper 30s.
.THURSDAY...Northwest winds 5 to 10 knots. Chance of rain showers
in the afternoon. Waves 1 foot or less. Highs in the upper 40s.

$$

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

    
                        

785

ASUS43 KGRB 290359

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

1100 PM CDT TUE APR 28 2026



WIZ005-009-010>012-018-019-290500-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       CLOUDY    40  33  76 NW3       30.00S

MANITOWISH WTR NOT AVBL

ARBOR VITAE    PTCLDY    39  32  77 CALM      29.97S

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    PTCLDY    41  31  67 CALM      29.97S

PHILLIPS       CLOUDY    43  32  66 NE7       29.97S

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-290500-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  PTCLDY    35  32  88 NW5       29.95F

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-290500-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        NOT AVBL

WAUSAU         NOT AVBL

MOSINEE        NOT AVBL

MARSHFIELD     MOCLDY    47  34  60 NW7       29.94F

WISC RAPIDS    PTCLDY    51  31  46 NW6       29.94F

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   MOCLDY    51  35  53 NE14      29.96R

WAUTOMA        MOCLDY    46  39  76 NW5       29.94F

$$



WIZ038-039-048-051-290500-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  MOCLDY    51  38  60 NE20G31   29.95R

APPLETON       PTCLDY    52  37  58 NW8       29.93R

OSHKOSH        PTCLDY    52  37  56 W3        29.92F

FOND DU LAC    MOCLDY    51  38  60 NW6       29.92F

$$



WIZ022-050-052-290500-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      PTCLDY    54  38  54 N12       29.93R

SHEBOYGAN      MOCLDY    53  37  54 NW5       29.91S

$$



LMZ563-521-522-541>543-290500-

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 0300   45     120/  4/  5 1013.2R

KEWAUNEE LKSHORE 0318           30/ 11/ 14 1013.8

NORTHPORT PIER   0300          300/  6/  7 1015.6

MENOMINEE LKSHOR 0318      49  350/ 15/ 18 1014.0

$$

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.