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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.
    
                        
166
ASUS43 KGRB 261610
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
1000 AM CST FRI DEC 26 2025

WIZ005-009-010>012-018-019-261700-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD CLOUDY 32 31 96 W7 29.72S
MANITOWISH WTR CLOUDY 32 32 100 NW3 29.70S FOG
ARBOR VITAE CLOUDY 32 32 99 N6 29.69S FOG
EAGLE RIVER FOG N/A N/A N/A NW5 29.69R VSB 1
LAND O LAKES CLOUDY 33 33 100 NW5 29.71R FOG
RHINELANDER FOG 32 31 96 NW5 29.70R VSB 1
PHILLIPS CLOUDY 32 32 100 CALM 29.72R
ANTIGO CLOUDY 32 32 100 NW5 29.70R FOG
TOMAHAWK CLOUDY 33 32 96 MISG 29.71R
MERRILL CLOUDY 32 31 95 CALM 29.70R FOG
$$

WIZ013-073-261700-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN CLOUDY 30 30 100 CALM 29.69R FOG
MARINETTE CLOUDY 33 33 100 CALM 29.73S FOG
OCONTO CLOUDY 32 32 99 NE3 29.71S
$$

WIZ017-030-035>037-045-261700-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD CLOUDY 32 32 99 NW6 29.72R
WAUSAU CLOUDY 33 32 96 NW6 29.71R FOG
MOSINEE FOG 32 32 100 NW6 29.70S VSB 1
MARSHFIELD CLOUDY 33 32 96 NW10 29.72R FOG
WISC RAPIDS CLOUDY 34 33 96 NW7 29.74R FOG
STEVENS POINT CLOUDY 35 35 99 W3 29.72R FOG
WAUPACA CLOUDY 36 35 96 NW3 29.75R FOG
SHAWANO FOG 35 35 100 CALM 29.72S VSB 1
CLINTONVILLE CLOUDY 33 33 99 N5 29.73S FOG
WAUTOMA CLOUDY 35 34 96 NW7 29.73R FOG
$$

WIZ038-039-048-051-261700-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY FOG 33 33 100 NE5 29.71R VSB 1/4
APPLETON FOG 36 36 100 CALM 29.71R VSB 3/8
OSHKOSH FOG 35 35 100 CALM 29.70S VSB 1/2
FOND DU LAC FOG 35 35 100 NW6 29.71R VSB 1
$$

WIZ022-050-052-261700-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM FOG 31 31 97 CALM 29.71R VSB 1/2
WASHINGTON ISL CLOUDY 32 32 97 CALM 29.72S FOG
STURGEON BAY FOG 36 34 93 CALM 29.71F VSB 1
MANITOWOC CLOUDY 36 36 100 N5 29.71R FOG
SHEBOYGAN CLOUDY 36 35 96 N6 29.69R FOG
$$

LMZ563-521-522-541>543-261700-
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 1600 37 340/ 7/ 7 1006.0R
KEWAUNEE LKSHORE 1524 35 320/ 1/ 3 1005.7
NORTHPORT PIER 1500 110/ 3/ 3 N/A
MENOMINEE LKSHOR 1524 32 34 60/ 6/ 7 1005.7
$$



 

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.