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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.
    
                        
748
ASUS43 KGRB 192110
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
400 PM CDT THU MAR 19 2026

WIZ005-009-010>012-018-019-192200-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD MOSUNNY 49 21 33 SW10 29.99F
MANITOWISH WTR MOSUNNY 45 23 42 S8 30.01F
ARBOR VITAE MOSUNNY 45 24 44 S7 30.01F
EAGLE RIVER MOSUNNY 47 19 32 SE6 30.02F
LAND O LAKES MOSUNNY 47 18 31 SE5 30.03F
RHINELANDER CLOUDY 47 21 35 VRB3 30.02F
PHILLIPS SUNNY 49 25 39 SE7 30.00F
ANTIGO PTSUNNY 44 29 55 SE6 30.05F
TOMAHAWK MOSUNNY 52 25 34 MISG 30.02F
MERRILL PTSUNNY 50 23 35 SE6 30.02F
$$

WIZ013-073-192200-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN MOSUNNY 43 23 45 E7 30.05F
MARINETTE MOSUNNY 38 27 64 E7 30.13S
OCONTO N/A 39 28 63 SE7 30.12S
$$

WIZ017-030-035>037-045-192200-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD MOSUNNY 43 30 59 S6 30.02F
WAUSAU MOSUNNY 47 31 53 SE9 30.03F
MOSINEE MOSUNNY 48 30 49 SE9 30.03F
MARSHFIELD MOSUNNY 46 32 58 SE10 30.02F
WISC RAPIDS MOSUNNY 48 33 56 SE10 30.05F
STEVENS POINT MOSUNNY 47 32 56 E9 30.07S
WAUPACA MOSUNNY 46 30 54 SE7 30.12S
SHAWANO MOSUNNY 43 29 57 SE9 30.11S
CLINTONVILLE MOSUNNY 42 29 60 E7 30.12R
WAUTOMA MOSUNNY 45 30 55 E7 30.08
$$

WIZ038-039-048-051-192200-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY MOSUNNY 38 30 73 SE10 30.11F
APPLETON MOSUNNY 45 32 61 SE8 30.09F
OSHKOSH MOSUNNY 41 30 65 E9 30.09F
FOND DU LAC MOSUNNY 42 29 59 SE9 30.08F
$$

WIZ022-050-052-192200-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM MOSUNNY 35 24 64 SE8 30.12S
WASHINGTON ISL MOSUNNY 34 28 76 SE6 30.13S
STURGEON BAY MOSUNNY 37 26 64 E10 30.14R
MANITOWOC MOSUNNY 37 31 78 E8 30.12F
SHEBOYGAN MOSUNNY 36 32 85 NE9 30.11F
$$

LMZ563-521-522-541>543-192200-
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 2100 35 50/ 8/ 9 1020.3F
KEWAUNEE LKSHORE 2024 35 100/ 7/ 8 1019.8
NORTHPORT PIER 2000 110/ 8/ 10 N/A
MENOMINEE LKSHOR 2024 35 40/ 9/ 10 1019.3
$$



 

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.