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.}

269
SXUS43 KGRB 121106
RECGRB
WIZ048-WIZ049-122200-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
506 AM CST Thu Nov 12 2026

.EARLY THIS MORNING...North winds 20 to 25 knots. Partly cloudy.
Waves 4 to 7 feet. Near steady temperature in the mid 30s.
.TODAY...North winds 15 to 25 knots. Mostly cloudy. Waves 4 to
7 feet. Highs in the lower 40s.
.TONIGHT...North winds 15 to 20 knots. Mostly cloudy. Waves 3 to
6 feet. Lows in the upper 20s.
.FRIDAY...North winds 10 to 20 knots. Mostly sunny. Waves 3 to
6 feet. Highs around 40.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. Partly cloudy.
Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. Lows
in the lower 30s.

$$

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

    
                        

545

ASUS43 KGRB 121159

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

600 AM CST THU NOV 12 2026



WIZ005-009-010>012-018-019-121300-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       MIX PCPN  31  27  85 N9        30.11R

MANITOWISH WTR NOT AVBL

ARBOR VITAE    NOT AVBL

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    PTCLDY    29  25  85 VRB7      30.03R

PHILLIPS       NOT AVBL

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-121300-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLOUDY    32  26  78 N12G23    29.98R

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-121300-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        NOT AVBL

WAUSAU         MOCLDY    31  26  82 N8        30.02R

MOSINEE        CLOUDY    30  27  86 N8G16     30.01S

MARSHFIELD     CLEAR     30  24  78 N10       30.03R

WISC RAPIDS    CLEAR     32  26  78 N12       30.02R

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        CLOUDY    35  29  78 N10       30.00R

$$



WIZ038-039-048-051-121300-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLOUDY    33  27  78 N17       29.97R

APPLETON       PTCLDY    36  30  80 N14G22    29.97R

OSHKOSH        PTCLDY    34  28  79 N18G29    29.96R

FOND DU LAC    MOCLDY    36  28  73 N23G30    29.95R

$$



WIZ022-050-052-121300-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      CLOUDY    36  29  75 N17G26    29.93R

SHEBOYGAN      CLEAR     35  29  78 N13G25    29.91R

$$



LMZ563-521-522-541>543-121300-

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 1140   37     340/ 18/ 23 1013.3R

KEWAUNEE LKSHORE 1112          340/  8/ 15 1012.9

NORTHPORT PIER   1100   40     330/ 29/ 35 1013.9

MENOMINEE LKSHOR 1112          330/ 18/ 23 1014.4

$$

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.