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.}

874
SXUS43 KGRB 011056
RECGRB
WIZ048-WIZ049-012200-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
455 AM CST Mon Dec 1 2025

.EARLY THIS MORNING...Southwest winds around 5 knots. Mostly
clear. Waves 1 foot or less. Near steady temperature around 8.
.TODAY...Southwest winds around 5 knots. Snow likely in the
afternoon. Waves 1 foot or less. Highs in the mid 20s.
.TONIGHT...West winds 5 to 10 knots. Snow likely in the evening.
Waves 1 foot or less. Lows around 16.
.TUESDAY...Southwest winds 10 to 15 knots. Partly sunny. Waves
1 to 2 feet. Highs in the mid 20s.
.TUESDAY NIGHT...Southwest winds 10 to 20 knots. Chance of snow
after midnight. Waves 3 to 5 feet. Lows in the lower 20s.

$$

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

    
                        

121

ASUS43 KGRB 040959

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

400 AM CST THU DEC 04 2025



WIZ005-009-010>012-018-019-041100-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       FLURRIES   1  -4  79 W12       30.26R WCI -16

MANITOWISH WTR NOT AVBL

ARBOR VITAE    NOT AVBL

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    CLEAR     -5  -9  83 W7        30.22S WCI -19

PHILLIPS       CLEAR     -6 -10  83 CALM      30.26F

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        CLEAR     -2 -10  70 CALM      30.28S

$$



WIZ013-073-041100-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLEAR      3  -1  83 W8        30.19R WCI -10

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-041100-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        CLEAR     -4  -9  77 W6        30.28R WCI -16

WAUSAU         CLEAR     -1  -8  72 W9        30.30R WCI -16

MOSINEE        CLEAR      0  -8  71 NW10      30.29S WCI -17

MARSHFIELD     CLEAR     -4 -10  75 NW10      30.30S WCI -21

WISC RAPIDS    CLEAR      0  -8  69 CALM      30.34S

STEVENS POINT  NOT AVBL

WAUPACA        CLEAR      6  -5  61 W5        30.37S WCI  -3

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        CLEAR     -2  -7  79 NW6       30.35R WCI -14

$$



WIZ038-039-048-051-041100-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLEAR      3  -6  66 W10       30.33R WCI -12

APPLETON       CLEAR      5  -4  66 NW10      30.32R WCI -10

OSHKOSH        CLEAR      2  -6  69 NW7       30.32R WCI -11

FOND DU LAC    CLEAR      2  -5  72 NW9       30.33R WCI -13

$$



WIZ022-050-052-041100-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      CLEAR      5  -4  66 NW14      30.32R WCI -12

SHEBOYGAN      CLEAR      6  -4  63 NW9       30.31R WCI  -8

$$



LMZ563-521-522-541>543-041100-

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 0900   10     300/ 13/ 15 1027.2R

KEWAUNEE LKSHORE 0930    8     300/  6/ 11 1025.3R

NORTHPORT PIER   0900   14     220/ 15/ 24   N/A

MENOMINEE LKSHOR 0930    6 38  240/ 11/ 13 1024.7R

$$

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.