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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.
    
                        
790
ASUS43 KGRB 250710
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
100 AM CST WED FEB 25 2026

WIZ005-009-010>012-018-019-250800-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD FLURRIES 11 4 73 W15 29.48R WCI -5
MANITOWISH WTR FLURRIES 11 4 74 NW14G20 29.43R WCI -5
ARBOR VITAE LGT SNOW 14 7 73 NW10G22 29.42R WCI 1
EAGLE RIVER LGT SNOW 16 9 72 NW12G23 29.39R WCI 3
LAND O LAKES LGT SNOW 16 12 85 W6 29.40R WCI 7
RHINELANDER FLURRIES 16 9 74 NW12G20 29.40R WCI 3
PHILLIPS CLOUDY 12 4 70 NW10 29.47R WCI -1
ANTIGO FLURRIES 18 12 76 W15G25 29.40R WCI 4
TOMAHAWK CLOUDY 17 9 70 MISG 29.45R
MERRILL MOCLDY 18 7 62 NW13G22 29.44R WCI 4
$$

WIZ013-073-250800-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN CLOUDY 22 14 71 NW16G24 29.35R WCI 8
MARINETTE MOCLDY 24 21 88 W5 29.39R
OCONTO N/A 23 21 91 W13 29.41R
$$

WIZ017-030-035>037-045-250800-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD MOCLDY 15 6 69 NW12 29.47R WCI 2
WAUSAU CLOUDY 20 12 71 NW20G33 29.45R WCI 4
MOSINEE MOCLDY 21 12 68 NW24G31 29.45R WCI 4
MARSHFIELD CLOUDY 21 13 71 NW22G30 29.48R WCI 5
WISC RAPIDS PTCLDY 24 13 62 NW14 29.49R
STEVENS POINT CLOUDY 27 17 65 W16G28 29.46R
WAUPACA CLEAR 28 20 70 W14G22 29.48R
SHAWANO CLOUDY 27 22 82 W3 29.43R
CLINTONVILLE MOCLDY 27 21 78 W12G17 29.45R
WAUTOMA CLOUDY 24 21 88 W12 29.47R
$$

WIZ038-039-048-051-250800-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY MOCLDY 25 20 81 W9 29.43R
APPLETON PTCLDY 25 23 93 W10 29.44R
OSHKOSH CLEAR 26 20 77 W8 29.46R
FOND DU LAC CLEAR 24 20 84 SW5 29.47R
$$

WIZ022-050-052-250800-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM CLOUDY 24 20 87 W8 29.35S
WASHINGTON ISL CLOUDY 27 26 95 W8 29.35S
STURGEON BAY CLOUDY 25 21 85 W14 29.39R
MANITOWOC PTCLDY 28 23 81 W15G24 29.43R
SHEBOYGAN PTCLDY 29 22 75 W17G26 29.44R
$$

LMZ563-521-522-541>543-250800-
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 0700 30 250/ 13/ 16 997.6R
KEWAUNEE LKSHORE 0630 28 270/ 10/ 14 995.4R
NORTHPORT PIER 0600 27 190/ 5/ 13 995.3
MENOMINEE LKSHOR 0630 26 35 230/ 11/ 13 994.2R
$$



 

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.