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.}

762
SXUS43 KGRB 190541
RECGRB
WIZ048-WIZ049-190900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
1241 AM CDT Fri Jun 19 2026

.REST OF THE NIGHT...Northwest winds around 10 knots. Mostly
clear. Waves 1 foot or less. Lows in the mid 50s.
.FRIDAY...Northwest winds around 10 knots. Sunny. Waves 1 foot or
less. Highs in the lower 70s.
.FRIDAY NIGHT...West winds 5 to 10 knots. Rain showers likely in
the evening. Chance of thunderstorms through the night. Waves
1 foot or less. Lows in the mid 50s.
.SATURDAY...Northwest winds around 10 knots. Mostly sunny. Waves
1 foot or less. Highs in the lower 70s.

$$

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

    
                        

628

ASUS43 KGRB 190459

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

1200 AM CDT FRI JUN 19 2026



WIZ005-009-010>012-018-019-190600-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       CLOUDY    52  49  89 SW5       29.85R

MANITOWISH WTR NOT AVBL

ARBOR VITAE    CLEAR     52  50  92 NW5       29.85R

EAGLE RIVER    CLEAR     49  44  85 W5        29.84R

LAND O LAKES   NOT AVBL

RHINELANDER    CLEAR     52  47  83 W5        29.85S

PHILLIPS       MOCLDY    51  48  88 CALM      29.87R

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        CLEAR     52  43  72 W3        29.86R

$$



WIZ013-073-190600-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLEAR     50  50 100 CALM      29.79R

MARINETTE      PTCLDY    55  55 100 CALM      29.81R

$$



WIZ017-030-035>037-045-190600-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        CLEAR     51  46  83 NW5       29.88R

WAUSAU         CLEAR     55  48  77 W7        29.86R

MOSINEE        NOT AVBL

MARSHFIELD     CLEAR     53  48  83 NW7       29.87R

WISC RAPIDS    CLEAR     55  48  77 NW7       29.87R

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   CLEAR     56  49  77 W7        29.85S

WAUTOMA        CLOUDY    57  53  86 W5        29.86R

$$



WIZ038-039-048-051-190600-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLEAR     58  50  75 W8        29.81R

APPLETON       CLEAR     57  52  82 W7        29.84S

OSHKOSH        CLEAR     58  52  80 W5        29.83S

FOND DU LAC    CLEAR     58  53  84 W8        29.85R

$$



WIZ022-050-052-190600-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   PTCLDY    59  53  80 N5        29.80R

MANITOWOC      CLEAR     60  52  74 W10       29.81S

SHEBOYGAN      CLEAR     54  52  93 W6        29.82S

$$



LMZ563-521-522-541>543-190600-

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 0400   59     250/  9/ 12 1009.6R

KEWAUNEE LKSHORE 0418          290/  4/  7 1008.3

NORTHPORT PIER   0400          360/  3/  8 1008.8

N MID LAKE BUOY  0440   52 51  270/  2/  4 1007.6S

MENOMINEE LKSHOR 0418      69  350/  6/  6 1008.7

$$

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.