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.}

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

    
                        

263

ASUS43 KGRB 220359

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

1000 PM CST WED JAN 21 2026



WIZ005-009-010>012-018-019-220500-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       LGT SNOW   8   4  83 W13       29.78S FOG     WCI  -8

MANITOWISH WTR NOT AVBL

ARBOR VITAE    PTCLDY     8   0  69 NW12G20   29.76R WCI  -7

EAGLE RIVER    CLEAR      8  -3  59 W9G20     29.75R WCI  -5

LAND O LAKES   NOT AVBL

RHINELANDER    MIX PCPN   9   0  67 W13G32    29.77R WCI  -7

PHILLIPS       PTCLDY     7  -2  65 CALM      29.81S

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        CLOUDY    14  -1  52 NW18G26   29.81R WCI  -3

$$



WIZ013-073-220500-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLEAR     13   3  64 W12G23    29.73R WCI  -1

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-220500-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        CLOUDY    12   5  74 NW10G18   29.83R WCI  -2

WAUSAU         LGT SNOW  15   8  73 W10       29.83R WCI   2

MOSINEE        LGT SNOW  16   9  73 NW17      29.82R HAZE    WCI   0

MARSHFIELD     LGT SNOW  14   8  77 NW30G38   29.86R WCI  -7

WISC RAPIDS    LGT SNOW  17   9  70 NW8       29.88R WCI   7

STEVENS POINT  NOT AVBL

WAUPACA        CLEAR     20  12  71 W10G17    29.89S WCI   8

SHAWANO        CLEAR     19   8  62 W8G16     29.84R WCI   9

CLINTONVILLE   NOT AVBL

WAUTOMA        PTCLDY    16  12  84 W10       29.89R WCI   4

$$



WIZ038-039-048-051-220500-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  PTCLDY    18   9  68 W13       29.84R WCI   5

APPLETON       CLEAR     19  12  73 W9        29.85R WCI   9

OSHKOSH        PTCLDY    18  12  77 W7        29.86R WCI   9

FOND DU LAC    CLOUDY    21  13  71 W15G22    29.88R WCI   8

$$



WIZ022-050-052-220500-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   CLOUDY    19  10  68 NW12G18   29.82R WCI   7

MANITOWOC      FLURRIES  20  13  74 W12       29.86R WCI   8

SHEBOYGAN      PTCLDY    20  13  74 W12G20    29.86R WCI   8

$$



LMZ563-521-522-541>543-220500-

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   23     270/ 14/ 17 1011.1R

KEWAUNEE LKSHORE 0324   20     280/ 11/ 21 1009.6

NORTHPORT PIER   0300   20     190/ 12/ 21   N/A

MENOMINEE LKSHOR 0324   19 35  280/ 12/ 19 1008.5

$$

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.