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Lake Winnebago Forecast                                       About these forecasts


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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.
    
                        
452
ASUS43 KGRB 222110
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
400 PM CDT SUN MAR 22 2026

WIZ005-009-010>012-018-019-222200-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD FLURRIES 23 18 81 N8 30.17R
MANITOWISH WTR CLOUDY 23 18 80 N8G16 30.11R
ARBOR VITAE CLOUDY 24 19 80 NW12 30.10R
EAGLE RIVER CLOUDY 26 17 71 N9 30.08R
LAND O LAKES CLOUDY 25 19 75 N9 30.10R
RHINELANDER CLOUDY 27 18 69 VRB6 30.08R
PHILLIPS CLOUDY 26 19 74 N8 30.11R
ANTIGO CLOUDY 29 21 69 N15 30.05S
TOMAHAWK CLOUDY 30 20 65 MISG 30.08S
MERRILL PTSUNNY 32 18 55 NE16G22 30.05S
$$

WIZ013-073-222200-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN CLOUDY 30 21 69 N15 30.06R
MARINETTE CLOUDY 33 20 58 N12 30.07R
OCONTO N/A 33 20 59 N15 30.06R
$$

WIZ017-030-035>037-045-222200-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD PTSUNNY 31 21 65 N12G18 30.06S
WAUSAU CLOUDY 32 20 61 N8 30.05S
MOSINEE PTSUNNY 32 21 64 N12G17 30.03F
MARSHFIELD CLOUDY 34 21 59 N15G22 30.04F
WISC RAPIDS CLOUDY 37 22 54 N15G21 30.04F
STEVENS POINT CLOUDY 37 22 56 N10 30.03F
WAUPACA CLOUDY 40 24 52 NW10 30.06R
SHAWANO CLOUDY 38 22 52 N13G20 30.04F
CLINTONVILLE CLOUDY 37 21 54 N8 30.04F
WAUTOMA CLOUDY 39 24 55 N12 30.02R
$$

WIZ038-039-048-051-222200-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY CLOUDY 34 22 61 N15 30.04S
APPLETON MOSUNNY 37 25 60 N15G23 30.00F
OSHKOSH CLOUDY 36 24 62 NE14 29.99F
FOND DU LAC CLOUDY 35 25 66 N14 29.99F
$$

WIZ022-050-052-222200-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM CLOUDY 29 20 70 N18G25 30.05R
WASHINGTON ISL CLOUDY 31 21 67 N17G28 30.05R
STURGEON BAY CLOUDY 30 23 74 N17 30.06R
MANITOWOC CLOUDY 34 24 67 N12G21 30.01F
SHEBOYGAN CLOUDY 34 25 69 N10G21 30.00R
$$

LMZ563-521-522-541>543-222200-
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 33 30/ 20/ 22 1016.4R
KEWAUNEE LKSHORE 2030 33 360/ 7/ 13 1016.9R
NORTHPORT PIER 2000 30 280/ 19/ 27 N/A
MENOMINEE LKSHOR 2030 31 35 350/ 18/ 21 1017.2R
$$



 

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.