Lake Winnebago Forecast

Lake Winnebago Forecast About these forecasts

Forecast Graphics

Lake Winnebago Recreational Forecast
^{Note: Experimental product. Check product creation time to verify this is a current forecast.}

697
SXUS43 KGRB 302047
RECGRB
WIZ048-WIZ049-010900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
347 PM CDT Wed Apr 30 2025

.REST OF THE AFTERNOON...Southeast winds around 10 knots. Partly
sunny. Waves 1 foot or less. Near steady temperature in the mid
50s.
.TONIGHT...Southeast winds 5 to 10 knots. Chance of rain showers
after midnight. Waves 1 foot or less. Lows in the mid 40s.
.THURSDAY...Northeast winds around 10 knots. Rain showers likely.
Waves 1 foot or less. Highs in the lower 50s.
.THURSDAY NIGHT...North winds 5 to 10 knots. Chance of rain
showers. Waves 1 foot or less. Lows in the lower 40s.
.FRIDAY...Northwest winds 5 to 10 knots. Chance of rain showers.
Waves 1 foot or less. Highs in the lower 50s.

$$

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

    
                        

685

ASUS43 KGRB 302159

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

500 PM CDT WED APR 30 2025



WIZ005-009-010>012-018-019-302300-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       MOSUNNY   63  32  31 SW10      29.91F

MANITOWISH WTR MOSUNNY   60  33  35 S12G21    29.94S

ARBOR VITAE    MOSUNNY   60  35  39 S13       29.95F

EAGLE RIVER    MOSUNNY   58  31  36 S6        29.96F

LAND O LAKES   NOT AVBL

RHINELANDER    MOSUNNY   59  36  42 S9G20     29.97F

PHILLIPS       MOSUNNY   59  37  43 S12       29.94F

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-302300-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  PTSUNNY   56  36  47 S10       29.99F

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-302300-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        MOSUNNY   60  40  48 S8        29.95F

WAUSAU         MOSUNNY   61  38  42 SE13      29.97F

MOSINEE        SUNNY     61  41  48 S14       29.96F

MARSHFIELD     MOSUNNY   64  37  36 S12       29.95F

WISC RAPIDS    MOSUNNY   65  36  34 SE9       29.97F

STEVENS POINT  MOSUNNY   62  42  48 E12G17    29.98F

WAUPACA        NOT AVBL

SHAWANO        MOSUNNY   59  40  48 SE9       30.03S

CLINTONVILLE   NOT AVBL

WAUTOMA        MOSUNNY   64  41  42 VRB6      29.97F

$$



WIZ038-039-048-051-302300-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  PTSUNNY   57  41  55 S14       30.03F

APPLETON       PTSUNNY   59  43  55 SE12      30.02F

OSHKOSH        MOSUNNY   59  42  53 SE16      29.99F

FOND DU LAC    MOSUNNY   57  39  51 SE14      30.01F

$$



WIZ022-050-052-302300-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      MOSUNNY   42  34  73 E6        30.07F

SHEBOYGAN      MOSUNNY   50  37  61 SE7       30.05F

$$



LMZ563-521-522-541>543-302300-

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   39      60/  5/  6 1018.7F

KEWAUNEE LKSHORE 2106   38      80/  5/  7 1017.6

NORTHPORT PIER   2100   37      80/  6/  8   N/A

S GREEN BAY BUOY 2100   47 47   90/  4/  6  997.5          1

CHAMBERS ISLAND  2140   43     320/  8/  9   N/A

MENOMINEE LKSHOR 2106   41 49   40/  6/  7 1017.0

$$

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.