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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.
    
                        
723
ASUS43 KGRB 291259
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
700 AM CST MON DEC 29 2025

WIZ005-009-010>012-018-019-291400-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD LGT SNOW 14 12 92 NW15G25 29.95R FOG WCI -1
MANITOWISH WTR NOT AVBL
ARBOR VITAE LGT SNOW 15 12 87 N18G24 29.81R WCI -1
EAGLE RIVER NOT AVBL
LAND O LAKES NOT AVBL
RHINELANDER LGT SNOW 15 12 88 NW13G32 29.78R FOG WCI 1
PHILLIPS FLURRIES 14 10 83 NW13G23 29.88R WCI 0
ANTIGO NOT AVBL
TOMAHAWK NOT AVBL
MERRILL CLOUDY 18 11 74 N14G21 29.79R WCI 4
$$

WIZ013-073-291400-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN LGT SNOW 18 13 80 NW28G40 29.66R WCI -1
MARINETTE NOT AVBL
$$

WIZ017-030-035>037-045-291400-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD CLOUDY 15 10 83 NW15 29.85R WCI -1
WAUSAU LGT SNOW 19 13 77 NW22G31 29.80R WCI 2
MOSINEE LGT SNOW 18 14 86 NW22 29.79R FOG WCI 0
MARSHFIELD LGT SNOW 14 9 80 NW22G35 29.86R WCI -4
WISC RAPIDS FLURRIES 17 11 77 NW17G29 29.86R WCI 1
STEVENS POINT NOT AVBL
WAUPACA NOT AVBL
SHAWANO NOT AVBL
CLINTONVILLE NOT AVBL
WAUTOMA FLURRIES 20 16 84 NW21G28 N/A WCI 4
$$

WIZ038-039-048-051-291400-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY CLOUDY 23 18 81 NW21G33 29.68R HAZE WCI 8
APPLETON LGT SNOW 25 18 74 NW25G35 29.69R WCI 9
OSHKOSH MIX PCPN 23 17 78 NW21G37 29.70R WCI 8
FOND DU LAC MIX PCPN 23 17 78 NW23G33 29.71R WCI 7
$$

WIZ022-050-052-291400-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM NOT AVBL
WASHINGTON ISL NOT AVBL
STURGEON BAY NOT AVBL
MANITOWOC LGT SNOW 23 22 96 NW25G33 29.64R VSB 3/4 WCI 7
SHEBOYGAN LGT SNOW 24 19 81 NW22G35 29.64R WCI 9
$$

LMZ563-521-522-541>543-291400-
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 1200 25 300/ 22/ 28 1002.3R
KEWAUNEE LKSHORE 1230 22 320/ 19/ 32 1001.7R
NORTHPORT PIER 1200 280/ 37/ 47 N/A
MENOMINEE LKSHOR 1230 22 34 310/ 25/ 39 1001.4R
$$



 

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.