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.}

    
                        

547

ASUS43 KGRB 202259

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

500 PM CST TUE JAN 20 2026



WIZ005-009-010>012-018-019-210000-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       MOCLDY     5  -4  66 SW7       30.01F WCI  -7

MANITOWISH WTR NOT AVBL

ARBOR VITAE    MOCLDY     4  -7  60 SW7       30.00F WCI  -8

EAGLE RIVER    PTCLDY     3 -10  55 SW5       30.00F WCI  -6

LAND O LAKES   NOT AVBL

RHINELANDER    PTCLDY     3  -8  60 SW10      30.02S WCI -12

PHILLIPS       CLOUDY     4  -6  65 SW8       30.04S WCI -10

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        PTCLDY     5  -8  56 W6        30.08R WCI  -6

$$



WIZ013-073-210000-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  PTCLDY     7  -6  55 SW9       30.03S WCI  -7

MARINETTE      MOCLDY     7  -6  55 SW8       30.16R WCI  -6

$$



WIZ017-030-035>037-045-210000-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        CLOUDY     5  -5  63 CALM      30.06F

WAUSAU         PTCLDY     6  -5  60 SW5       30.10S WCI  -3

MOSINEE        NOT AVBL

MARSHFIELD     MOCLDY     6  -4  63 W5        30.09S WCI  -3

WISC RAPIDS    MOCLDY     8  -5  55 SW7       30.14F WCI  -3

STEVENS POINT  MOCLDY    10  -3  55 SW7       30.12S WCI  -1

WAUPACA        PTCLDY    12  -2  53 S3        30.18F

SHAWANO        MOCLDY    10  -7  46 CALM      30.15F

CLINTONVILLE   MOCLDY     8  -4  58 SW8       30.16F WCI  -4

WAUTOMA        MOCLDY     9  -2  61 S6        30.16F WCI  -1

$$



WIZ038-039-048-051-210000-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  PTCLDY     9  -4  55 S8        30.17F WCI  -3

APPLETON       MOCLDY    10   0  61 SW9       30.16F WCI  -2

OSHKOSH        PTCLDY     7  -3  64 S8        30.17F WCI  -6

FOND DU LAC    PTCLDY     8  -3  61 SW7       30.19S WCI  -3

$$



WIZ022-050-052-210000-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   MOCLDY     7  -5  57 SW12      30.16S WCI  -8

MANITOWOC      MOCLDY     8  -3  61 SW9       30.22R WCI  -5

SHEBOYGAN      MOCLDY     8  -3  61 SW9       30.21S WCI  -5

$$



LMZ563-521-522-541>543-210000-

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   10     220/ 14/ 16 1024.6F

KEWAUNEE LKSHORE 2224    8     230/  8/ 11 1021.9

NORTHPORT PIER   2200    6     180/  7/ 12   N/A

MENOMINEE LKSHOR 2224    8 35  200/  9/ 15 1020.0

$$

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.