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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 150610
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
1200 AM CST THU JAN 15 2026

WIZ005-009-010>012-018-019-150700-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD FLURRIES 13 8 81 NW6 30.08F WCI 4
MANITOWISH WTR FLURRIES 11 6 79 N3 30.03F
ARBOR VITAE CLOUDY 11 6 79 N9 30.02F WCI -1
EAGLE RIVER CLOUDY 11 4 73 NW12 30.01S WCI -3
LAND O LAKES FLURRIES 12 7 81 N8 30.02F WCI 0
RHINELANDER CLOUDY 11 4 73 MISG 30.01F
PHILLIPS CLOUDY 12 6 76 CALM 30.05F
ANTIGO CLOUDY 11 4 73 N18 30.01F WCI -7
TOMAHAWK CLOUDY 14 6 72 MISG 30.04F
MERRILL NOT AVBL
$$

WIZ013-073-150700-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN MOCLDY 12 5 73 NW13 30.00S WCI -3
MARINETTE CLEAR 13 5 70 NW10 30.03F WCI 0
OCONTO CLEAR 14 5 67 NW7 30.04S WCI 3
$$

WIZ017-030-035>037-045-150700-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD CLOUDY 11 4 72 NW8 30.05F WCI -1
WAUSAU CLOUDY 15 4 61 N14 30.04F WCI 0
MOSINEE CLOUDY 14 5 67 N13G20 30.04S WCI 0
MARSHFIELD PTCLDY 10 3 73 N10 30.06F WCI -4
WISC RAPIDS CLOUDY 15 4 61 NW8 30.08S WCI 4
STEVENS POINT CLOUDY 17 4 58 CALM 30.06S
WAUPACA CLOUDY 18 5 56 NW8 30.10S WCI 8
SHAWANO CLOUDY 17 4 57 N6 30.06F WCI 8
CLINTONVILLE CLOUDY 16 5 63 N12 30.07F WCI 2
WAUTOMA CLOUDY 16 6 65 N9 30.07F WCI 4
$$

WIZ038-039-048-051-150700-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY CLEAR 14 4 64 NW13 30.04S WCI 0
APPLETON CLEAR 18 7 62 N12 30.04S WCI 5
OSHKOSH PTCLDY 14 4 64 N13 30.03F WCI 0
FOND DU LAC MOCLDY 15 5 64 N10G22 30.04S WCI 2
$$

WIZ022-050-052-150700-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM PTCLDY 13 6 74 N15G25 29.98S WCI -3
WASHINGTON ISL FLURRIES 18 14 84 N17 29.98S WCI 2
STURGEON BAY MOCLDY 14 7 73 N18 30.01S WCI -3
MANITOWOC CLEAR 14 6 70 NW15G24 30.01S WCI -1
SHEBOYGAN CLEAR 14 5 67 N15 30.00S WCI -1
$$

LMZ563-521-522-541>543-150700-
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 0600 15 330/ 17/ 20 1017.1F
KEWAUNEE LKSHORE 0524 15 330/ 11/ 17 1015.7
NORTHPORT PIER 0500 18 240/ 18/ 25 N/A
MENOMINEE LKSHOR 0524 14 34 310/ 16/ 23 1015.8
$$



 

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.