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.}

265
SXUS43 KGRB 162131
RECGRB
WIZ048-WIZ049-170900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
431 PM CDT Thu Jul 16 2026

.REST OF THE AFTERNOON...Northwest winds up to 5 knots. Smoke.
Waves less than 1 foot. Near steady temperature in the lower 80s.
.TONIGHT...Southeast winds 5 to 10 knots. Smoke through the
night. slight chance of thunderstorms after midnight. Waves
1 foot or less. Lows in the upper 60s.
.FRIDAY...South winds 5 to 10 knots. Smoke in the morning, then
areas of smoke in the afternoon. chance of showers and slight
chance of thunderstorms in the morning, then chance of
thunderstorms in the afternoon. Waves less than 1 foot. Highs in
the upper 80s.
.FRIDAY NIGHT...Southwest winds 5 to 15 knots. Chance of
thunderstorms in the evening. Waves 1 to 2 feet. Lows in the
lower 70s.
.SATURDAY...Northwest winds 10 to 15 knots. Sunny. Waves 1 foot
or less. Highs in the lower 80s.

$$

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

    
                        

228

ASUS43 KGRB 162159

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

500 PM CDT THU JUL 16 2026



WIZ005-009-010>012-018-019-162300-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       NOT AVBL

MANITOWISH WTR NOT AVBL

ARBOR VITAE    NOT AVBL

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    NOT AVBL

PHILLIPS       NOT AVBL

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-162300-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  NOT AVBL

MARINETTE      CLOUDY    75  63  64 E6        30.09F HAZE

$$



WIZ017-030-035>037-045-162300-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        NOT AVBL

WAUSAU         NOT AVBL

MOSINEE        HAZE      82  64  54 E6        30.08F VSB 1

MARSHFIELD     NOT AVBL

WISC RAPIDS    NOT AVBL

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        CLOUDY    86  64  48 E6        30.06F HAZE

$$



WIZ038-039-048-051-162300-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  SMOKE     81  59  47 NE9       30.06F VSB 1

APPLETON       SMOKE     86  64  48 CALM      30.08S VSB 1

OSHKOSH        NOT AVBL

FOND DU LAC    NOT AVBL

$$



WIZ022-050-052-162300-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      NOT AVBL

SHEBOYGAN      NOT AVBL

$$



LMZ563-521-522-541>543-162300-

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   75     140/  3/  3 1018.6F

KEWAUNEE LKSHORE 2130           70/  3/  5 1018.3R

NORTHPORT PIER   2100          320/  5/  6 1019.3

N MID LAKE BUOY  2130   71 71  350/  4/  4 1018.6R

MENOMINEE LKSHOR 2130   74 74   30/  6/  7 1018.8R

$$

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.