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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.
    
                        
891
ASUS43 KGRB 090559
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
1200 AM CST TUE DEC 09 2025

WIZ005-009-010>012-018-019-090700-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD LGT SNOW 17 14 88 S6 29.75F FOG WCI 9
MANITOWISH WTR NOT AVBL
ARBOR VITAE NOT AVBL
EAGLE RIVER NOT AVBL
LAND O LAKES NOT AVBL
RHINELANDER LGT SNOW 16 12 84 S12 29.78F FOG WCI 3
PHILLIPS LGT SNOW 16 13 87 S8 29.76F WCI 6
ANTIGO NOT AVBL
TOMAHAWK NOT AVBL
MERRILL LGT SNOW 18 12 79 S7 29.82F WCI 8
$$

WIZ013-073-090700-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN FLURRIES 19 13 77 S14 29.84F WCI 6
MARINETTE NOT AVBL
$$

WIZ017-030-035>037-045-090700-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD CLOUDY 17 13 86 S13 29.79F WCI 3
WAUSAU LGT SNOW 17 14 88 SE12 29.84F FOG WCI 4
MOSINEE NOT AVBL
MARSHFIELD LGT SNOW 17 14 88 S13 29.83F FOG WCI 4
WISC RAPIDS LGT SNOW 18 14 84 S7 29.88F FOG WCI 9
STEVENS POINT NOT AVBL
WAUPACA LGT SNOW 22 16 77 S10 29.95F
SHAWANO NOT AVBL
CLINTONVILLE NOT AVBL
WAUTOMA LGT SNOW 19 15 84 S9 29.92F FOG WCI 8
$$

WIZ038-039-048-051-090700-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY LGT SNOW 22 15 75 S13G24 29.96F WCI 10
APPLETON CLOUDY 23 18 80 S14 29.94F
OSHKOSH CLOUDY 21 14 74 S17 29.95F WCI 7
FOND DU LAC CLOUDY 22 15 75 S17 29.96F WCI 8
$$

WIZ022-050-052-090700-
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 24 14 65 S12G20 29.99F
SHEBOYGAN CLOUDY 23 14 68 S14 29.99F
$$

LMZ563-521-522-541>543-090700-
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 0500 26 210/ 20/ 23 1017.3F
KEWAUNEE LKSHORE 0530 25 230/ 11/ 16 1015.3F
NORTHPORT PIER 0500 25 170/ 4/ 16 N/A
MENOMINEE LKSHOR 0530 24 36 200/ 17/ 20 1014.0F
$$



 

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.