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.}

661
SXUS43 KGRB 281136
RECGRB
WIZ048-WIZ049-282100-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
636 AM CDT Wed Oct 28 2026

.TODAY...South winds 5 to 10 knots. Sunny. Waves 1 foot or less.
Highs around 70.
.TONIGHT...Southwest winds 10 to 20 knots. Chance of rain showers
and slight chance of thunderstorms. Waves 1 to 3 feet building to
2 to 4 feet after midnight. Lows in the mid 50s.
.THURSDAY...Northwest winds 10 to 15 knots. Mostly sunny. Waves
1 to 2 feet. Highs in the lower 60s.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots. Mostly clear.
Waves 1 foot or less. Lows in the lower 40s.

$$

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

    
                        

204

ASUS43 KGRB 281210

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

700 AM CDT WED OCT 28 2026



WIZ005-009-010>012-018-019-281300-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       CLOUDY    55  51  86 SW8       30.05S

MANITOWISH WTR CLOUDY    53  51  94 S5        30.07S

ARBOR VITAE    CLOUDY    52  50  93 S8        30.08S

EAGLE RIVER    CLOUDY    53  53 100 CALM      30.09S

LAND O LAKES   CLOUDY    53  51  93 S3        30.10S

RHINELANDER    CLOUDY    54  51  90 SW8       30.11R

PHILLIPS       CLOUDY    54  52  94 S7        30.07S

ANTIGO         CLEAR     46  46 100 CALM      30.13S FOG

TOMAHAWK       CLOUDY    53  50  91 S5        30.11S

MERRILL        MOCLDY    53  52  95 SW3       30.11R

$$



WIZ013-073-281300-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  PTCLDY    50  49  96 SE3       30.10R FOG

MARINETTE      CLEAR     53  53 100 SW6       30.14S

OCONTO         CLEAR     43  41  93 CALM      30.15R

$$



WIZ017-030-035>037-045-281300-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        CLOUDY    54  54 100 S7        30.10S

WAUSAU         CLEAR     49  48  97 E5        30.11F FOG

MOSINEE        CLEAR     46  46 100 CALM      30.11S

MARSHFIELD     FOG       46  45  96 S6        30.11S VSB 1

WISC RAPIDS    CLEAR     49  47  93 SW3       30.13R

STEVENS POINT  FOG       46  45  95 CALM      30.13S VSB 1/2

WAUPACA        FOG       43  43  99 CALM      30.17S VSB 1/4

SHAWANO        MOCLDY    49  49 100 CALM      30.14S FOG

CLINTONVILLE   FOG       44  43  99 CALM      30.15S VSB<1/4

WAUTOMA        FOG       41  41 100 CALM      30.14F VSB 1

$$



WIZ038-039-048-051-281300-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLEAR     49  47  93 S5        30.14S

APPLETON       PTCLDY    52  52 100 S3        30.15S

OSHKOSH        PTCLDY    48  46  93 S8        30.15S

FOND DU LAC    CLEAR     49  46  90 S6        30.16S

$$



WIZ022-050-052-281300-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        CLEAR     53  52  98 S5        30.13S FOG

WASHINGTON ISL CLOUDY    55  54  97 S7        30.14S FOG

STURGEON BAY   CLEAR     52  51  97 S6        30.15S FOG

MANITOWOC      FOG       49  48  97 W7        30.16F VSB 1/2

SHEBOYGAN      PTCLDY    47  47 100 S5        30.17S FOG

$$



LMZ563-521-522-541>543-281300-

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 1150   55     190/  7/  8 1021.9R

KEWAUNEE LKSHORE 1130          170/  1/  2 1020.6S

NORTHPORT PIER   1100   56     130/  5/ 11 1021.3

N MID LAKE BUOY  1140   57 56  190/ 16/ 17 1020.6F

MENOMINEE LKSHOR 1130   54 56  190/  7/  8 1020.2R

$$

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.