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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.

670
SXUS43 KGRB 201007
RECGRB
WIZ048-WIZ049-202100-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
507 AM CDT Sun Jun 20 2021

.EARLY THIS MORNING...South winds around 5 knots. Partly cloudy.
Waves 1 foot or less. Near steady temperature around 60.
.TODAY...South winds 5 to 10 knots. Chance of thunderstorms in
the afternoon. Waves 1 foot or less. Highs in the mid 70s.
.TONIGHT...South winds 10 to 15 knots veering west 15 to 20 knots
after midnight. Rain showers likely in the evening. Chance of
thunderstorms through the night. Waves 1 to 3 feet building to
2 to 4 feet after midnight. Lows in the upper 50s.
.MONDAY...Northwest winds 15 to 20 knots. Mostly sunny. Waves
3 to 5 feet. Highs in the mid 60s.
.MONDAY NIGHT...West winds 5 to 15 knots. Mostly clear. Waves
1 to 2 feet. Lows in the upper 40s.

$$



 

Local Observations
Note: Check product creation time to verify this is a current product.

907
ASUS43 KGRB 201011
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
500 AM CDT SUN JUN 20 2021

WIZ005-009-010>012-018-019-201100-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD PTCLDY 54 50 86 S9 29.75F
MANITOWISH WTR PTCLDY 43 43 100 CALM 29.76F FOG
ARBOR VITAE PTCLDY 50 42 72 CALM 29.76F
EAGLE RIVER MOCLDY 47 47 100 CALM 29.75F
LAND O LAKES CLEAR 42 42 99 CALM 29.78F FOG
RHINELANDER PTCLDY 48 46 93 CALM 29.76F
PHILLIPS MOCLDY 50 50 100 CALM 29.74F
ANTIGO CLEAR 50 50 100 NE6 29.76F
TOMAHAWK PTCLDY 45 45 99 CALM 29.75F
MERRILL PTCLDY 47 47 100 CALM 29.75F
$$

WIZ013-073-201100-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN PTCLDY 53 48 83 N5 29.76S
MARINETTE PTCLDY 54 52 93 CALM 29.76F
OCONTO PTCLDY 48 48 100 CALM 29.74F
$$

WIZ017-030-035>037-045-201100-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD PTCLDY 50 50 99 E7 29.70F
WAUSAU CLEAR 57 51 80 N6 29.73F
MOSINEE CLEAR 54 52 94 NE6 29.75F
MARSHFIELD PTCLDY 56 52 86 E7 29.71F
WISC RAPIDS CLEAR 53 53 100 CALM 29.72F
STEVENS POINT CLEAR 48 48 100 N3 29.73F
WAUPACA CLEAR 58 56 95 CALM 29.73F FOG
SHAWANO PTCLDY 55 54 99 CALM 29.74F FOG
CLINTONVILLE CLEAR 54 53 97 CALM 29.73F
WAUTOMA CLEAR 54 53 97 CALM 29.73F
$$

WIZ038-039-048-051-201100-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY CLEAR 55 52 89 CALM 29.74F
APPLETON CLEAR 57 55 94 CALM 29.73F
OSHKOSH NOT AVBL
FOND DU LAC CLEAR 57 53 86 S3 29.74F
$$

WIZ022-050-052-201100-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM FAIR 53 51 93 E3 29.76S
WASHINGTON ISL CLOUDY 51 51 100 CALM 29.76F
STURGEON BAY CLOUDY 57 53 86 N3 29.77F
MANITOWOC FOG 54 54 100 CALM 29.75F VSB 1/2
SHEBOYGAN CLEAR 56 52 86 CALM 29.73F
$$

LMZ563-521-522-541>543-201100-
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 1000 59 20/ 6/ 7 N/A
KEWAUNEE LKSHORE 0930 56 310/ 1/ 4 1006.9R
NORTHPORT PIER 0940 59 70/ 5/ 7 1009.1R
S GREEN BAY BUOY 0930 63 69 140/ 2/ 4 1007.5S 0
SISTER BAY LKSHO 0902 57 100/ 7/ 9 N/A
CHAMBERS ISLAND 0940 60 30/ 4/ 4 N/A
MENOMINEE LKSHOR 0930 62 72 50/ 5/ 7 1007.0F
$$



 

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.