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.}

693
SXUS43 KGRB 131957
RECGRB
WIZ048-WIZ049-140900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
257 PM CDT Tue Oct 13 2026

.REST OF THE AFTERNOON...Northwest winds 10 to 15 knots. Sunny.
Waves 1 foot or less. Near steady temperature in the mid 60s.
.TONIGHT...North winds around 5 knots. Slight chance of rain
showers in the evening. Waves 1 foot or less. Lows in the mid
50s.
.WEDNESDAY...North winds 5 to 10 knots. Partly sunny. Waves
1 foot or less. Highs in the lower 60s.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Mostly cloudy. Waves
1 to 2 feet. Lows in the upper 40s.
.THURSDAY...East winds 5 to 10 knots. Rain showers in the
afternoon. Waves 1 to 2 feet. Highs around 60.

$$

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

    
                        

120

ASUS43 KGRB 132010

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

300 PM CDT TUE OCT 13 2026



WIZ005-009-010>012-018-019-132100-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       CLOUDY    50  45  83 VRB5      29.88F

MANITOWISH WTR CLOUDY    53  44  72 NW7       29.87F

ARBOR VITAE    CLOUDY    54  45  71 NW3       29.87F

EAGLE RIVER    CLOUDY    52  45  75 NW8       29.87S

LAND O LAKES   CLOUDY    49  43  79 NW3       29.89S

RHINELANDER    CLOUDY    54  46  74 VRB6      29.88S

PHILLIPS       PTSUNNY   57  47  69 W5        29.86F

ANTIGO         SUNNY     60  47  64 NW6       29.86F

TOMAHAWK       PTSUNNY   58  45  61 CALM      29.86F

MERRILL        SUNNY     61  47  59 W7        29.85F

$$



WIZ013-073-132100-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLOUDY    60  47  61 NW10      29.82S

MARINETTE      CLOUDY    61  51  70 VRB7      29.84S

OCONTO         PTSUNNY   64  47  54 NW7       29.84R

$$



WIZ017-030-035>037-045-132100-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        MOSUNNY   62  48  59 W8        29.86F

WAUSAU         MOSUNNY   62  48  60 SW9       29.86F

MOSINEE        SUNNY     63  50  63 W8G15     29.86F

MARSHFIELD     SUNNY     62  48  60 VRB6G18   29.86F

WISC RAPIDS    NOT AVBL

STEVENS POINT  SUNNY     66  49  54 NW7       29.86F

WAUPACA        SUNNY     64  48  56 NW10      29.88F

SHAWANO        SUNNY     67  51  57 W8        29.84F

CLINTONVILLE   MOSUNNY   64  52  64 NW9       29.87S

WAUTOMA        SUNNY     69  52  54 NW10      29.85F

$$



WIZ038-039-048-051-132100-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  SUNNY     66  51  58 W13       29.84S

APPLETON       MOSUNNY   66  54  63 NW13      29.86R

OSHKOSH        SUNNY     68  53  58 NW12      29.83F

FOND DU LAC    SUNNY     70  54  56 NW9       29.84F

$$



WIZ022-050-052-132100-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        CLOUDY    58  50  75 NW3       29.83S

WASHINGTON ISL CLOUDY    59  53  80 N7        29.83R

STURGEON BAY   CLOUDY    59  52  77 NW8       29.85R

MANITOWOC      SUNNY     68  54  60 W13       29.84R

SHEBOYGAN      SUNNY     70  54  56 NW13      29.84R

$$



LMZ563-521-522-541>543-132100-

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 1950   69     300/ 10/ 14 1009.9R

KEWAUNEE LKSHORE 1924          300/  6/ 11 1009.7

NORTHPORT PIER   1900          280/ 10/ 15 1010.5

N MID LAKE BUOY  1940   58 61  310/ 10/ 12 1009.6R

MENOMINEE LKSHOR 1924   60 62  290/  7/ 12 1009.9

$$

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.