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.}

959
SXUS43 KGRB 040136
RECGRB
WIZ048-WIZ049-040245-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
836 PM CDT Sat Oct 3 2026

.TONIGHT...Southwest winds 10 to 20 knots. Chance of rain showers
early in the evening. Rain showers likely after midnight. Waves
2 to 4 feet. Lows in the lower 50s.
.SUNDAY...Northwest winds 10 to 15 knots. Mostly sunny. Waves
1 to 3 feet. Highs in the mid 60s.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots. Clear. Waves
1 foot or less. Lows in the mid 40s.
.MONDAY...West winds up to 5 knots. Sunny. Waves 1 foot or less.
Highs in the lower 60s.

$$

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

    
                        

485

ASUS43 KGRB 040159

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

900 PM CDT SAT OCT 03 2026



WIZ005-009-010>012-018-019-040300-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       LGT RAIN  52  48  86 S8        29.99F

MANITOWISH WTR NOT AVBL

ARBOR VITAE    NOT AVBL

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    LGT RAIN  52  46  80 S3        30.04F

PHILLIPS       DRIZZLE   51  49  90 S6        30.02S

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-040300-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLOUDY    54  50  86 SE6       30.06F

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-040300-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        NOT AVBL

WAUSAU         NOT AVBL

MOSINEE        CLOUDY    55  46  71 S7        30.05F

MARSHFIELD     LGT RAIN  56  45  66 S10       30.04F

WISC RAPIDS    LGT RAIN  60  42  51 S7        30.07F

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        LGT RAIN  59  46  62 SW3       30.09F

$$



WIZ038-039-048-051-040300-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLOUDY    59  52  77 S12G22    30.10F

APPLETON       CLOUDY    61  55  82 S13       30.12S

OSHKOSH        MOCLDY    58  52  80 S9        30.12S

FOND DU LAC    PTCLDY    57  51  80 S10       30.13S

$$



WIZ022-050-052-040300-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      CLOUDY    60  52  74 S13       30.14F

SHEBOYGAN      MOCLDY    58  52  80 S10       30.14F

$$



LMZ563-521-522-541>543-040300-

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 0140   62     180/ 17/ 21 1020.3F

KEWAUNEE LKSHORE 0106          180/ 17/ 19 1020.1

NORTHPORT PIER   0100          130/ 12/ 20 1020.3

N MID LAKE BUOY  0140   62 64  170/ 17/ 21 1019.7F

CHAMBERS ISLAND  0140   60     130/  9/ 18   N/A

MENOMINEE LKSHOR 0106      65  170/ 14/ 19 1019.3

$$

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.