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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.
    
                        
786
ASUS43 KGRB 192110
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
300 PM CST MON JAN 19 2026

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

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD PTSUNNY -6 -13 71 W14G24 30.06R HAZE WCI -26
MANITOWISH WTR MOSUNNY -5 -16 60 W6 30.00S WCI -18
ARBOR VITAE SUNNY -3 -14 60 W9G21 30.00R WCI -20
EAGLE RIVER MOSUNNY -3 -15 56 W14G20 29.98R WCI -23
LAND O LAKES MOSUNNY -2 -12 61 W7G17 29.98R WCI -15
RHINELANDER SUNNY -3 -15 56 W13G25 30.00R WCI -22
PHILLIPS SUNNY -4 -16 56 W6 30.05F WCI -16
ANTIGO N/A -1 -13 56 W14 30.02S WCI -20
TOMAHAWK SUNNY 0 -15 49 MISG 30.05R
MERRILL SUNNY 1 -18 40 W15 30.06R WCI -18
$$

WIZ013-073-192200-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN PTSUNNY 4 -9 55 NW18G28 29.96R WCI -16
MARINETTE CLOUDY 8 -8 48 W8G18 30.06R WCI -4
OCONTO PTSUNNY 6 -10 47 W18G26 30.09R WCI -14
$$

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

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD SUNNY -3 -16 54 W12G22 30.08R WCI -21
WAUSAU SUNNY -2 -14 56 SW18G25 30.10R WCI -24
MOSINEE SUNNY -2 -13 60 W16 30.10R WCI -23
MARSHFIELD SUNNY -2 -13 59 W14 30.13R WCI -21
WISC RAPIDS SUNNY 1 -16 44 NW14G21 30.17R WCI -17
STEVENS POINT SUNNY 2 -13 49 W15G24 30.14R WCI -17
WAUPACA SUNNY 4 -13 45 W14G22 30.19R WCI -13
SHAWANO SUNNY 5 -14 41 W15G21 30.11R WCI -13
CLINTONVILLE SUNNY 1 -13 50 W21G26 30.15R WCI -21
WAUTOMA SUNNY 4 -11 50 W16G26 30.18R WCI -15
$$

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

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY SUNNY 2 -12 52 W18G28 30.12R WCI -19
APPLETON MOSUNNY 3 -9 55 W21G28 30.12R WCI -18
OSHKOSH SUNNY 2 -12 52 W16G26 30.14R WCI -18
FOND DU LAC SUNNY 2 -12 52 W17G29 30.16R WCI -18
$$

WIZ022-050-052-192200-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM CLOUDY 7 -7 54 W9G17 30.01R WCI -7
WASHINGTON ISL CLOUDY 9 -8 47 NW8 30.01R WCI -4
STURGEON BAY CLOUDY 7 -7 52 W18G25 30.05R WCI -12
MANITOWOC SUNNY 3 -8 60 W20G26 30.12R WCI -18
SHEBOYGAN SUNNY 2 -10 57 W17G35 30.14R WCI -18
$$

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 2 260/ 20/ 24 1021.9R
KEWAUNEE LKSHORE 2024 5 280/ 15/ 21 1017.9
NORTHPORT PIER 2000 11 240/ 11/ 22 N/A
MENOMINEE LKSHOR 2024 8 35 260/ 9/ 18 1016.5
$$



 

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.