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Lake Winnebago Forecast                                       About these forecasts


Forecast Graphics


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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.
    
                        
140
ASUS43 KGRB 281459
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
900 AM CST WED JAN 28 2026

WIZ005-009-010>012-018-019-281600-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD LGT SNOW -2 -7 79 W13 30.05R VSB 3/4 WCI -20
MANITOWISH WTR NOT AVBL
ARBOR VITAE CLOUDY -5 -9 81 NW6 30.00S WCI -17
EAGLE RIVER CLOUDY -4 -10 75 W7 29.98S WCI -17
LAND O LAKES NOT AVBL
RHINELANDER CLOUDY -6 -11 79 W6 30.00S WCI -19
PHILLIPS CLOUDY -8 -12 83 CALM 30.04S
ANTIGO NOT AVBL
TOMAHAWK NOT AVBL
MERRILL CLOUDY -6 -14 68 NW3 30.05S
$$

WIZ013-073-281600-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN MOSUNNY 1 -5 75 W9 29.98R WCI -14
MARINETTE NOT AVBL
$$

WIZ017-030-035>037-045-281600-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD SUNNY -6 -11 79 W9 30.05S WCI -23
WAUSAU SUNNY -4 -10 75 W8 30.07S WCI -19
MOSINEE SUNNY -2 -8 78 NW14 30.06S WCI -21
MARSHFIELD MOSUNNY -4 -9 79 NW14 30.08S WCI -24
WISC RAPIDS SUNNY -2 -9 72 NW10 30.13S WCI -19
STEVENS POINT SUNNY 1 -6 73 W7 30.10R WCI -12
WAUPACA SUNNY 3 -6 66 W10 30.15S WCI -12
SHAWANO SUNNY 0 -10 64 W5 30.11S WCI -10
CLINTONVILLE SUNNY -1 -8 72 W7 30.12S WCI -15
WAUTOMA SUNNY 2 -5 72 W14 30.13S WCI -16
$$

WIZ038-039-048-051-281600-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY SUNNY 0 -7 72 W9 30.11F WCI -15
APPLETON MOSUNNY 1 -6 71 W10 30.11R WCI -14
OSHKOSH SUNNY 0 -7 72 W8 30.12S WCI -14
FOND DU LAC SUNNY 0 -6 76 W8 30.14R WCI -14
$$

WIZ022-050-052-281600-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM CLOUDY 2 -5 73 W8 30.02S WCI -12
WASHINGTON ISL NOT AVBL
STURGEON BAY NOT AVBL
MANITOWOC SUNNY 3 -5 69 W15G24 30.10S WCI -16
SHEBOYGAN SUNNY 2 -5 72 W10 30.11F WCI -14
$$

LMZ563-521-522-541>543-281600-
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 1400 2 270/ 11/ 14 1021.4F
KEWAUNEE LKSHORE 1418 290/ 12/ 17 1018.1
NORTHPORT PIER 1400 6 210/ 5/ 10 N/A
MENOMINEE LKSHOR 1418 36 270/ 9/ 14 1017.2
$$



 

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.