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.}

380
SXUS43 KGRB 160251
RECGRB
WIZ048-WIZ049-160400-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
951 PM CDT Mon Jun 15 2026

.TONIGHT...Southwest winds 5 to 15 knots. Mostly clear. Waves
1 foot or less. Lows in the upper 50s.
.TUESDAY...Southwest winds 10 to 15 knots. Rain showers likely
and chance of thunderstorms in the afternoon. Waves 1 foot or
less. Highs in the upper 60s.
.TUESDAY NIGHT...West winds 5 to 15 knots. Chance of
thunderstorms in the evening. Waves 1 foot or less. Lows in the
mid 50s.
.WEDNESDAY...South winds 5 to 10 knots backing southeast 10 to
20 knots in the afternoon. Chance of rain showers in the morning,
then rain showers in the afternoon. Waves 1 foot or less. Highs
in the mid 60s.

$$

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

    
                        

786

ASUS43 KGRB 160510

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

1200 AM CDT TUE JUN 16 2026



WIZ005-009-010>012-018-019-160600-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       LGT RAIN  53  52  96 S6        29.71F

MANITOWISH WTR CLOUDY    54  48  82 W3        29.73R

ARBOR VITAE    MOCLDY    54  49  82 CALM      29.72F

EAGLE RIVER    PTCLDY    50  50 100 CALM      29.71S

LAND O LAKES   PTCLDY    49  49  99 CALM      29.72F

RHINELANDER    MOCLDY    58  47  66 W12       29.71S

PHILLIPS       MOCLDY    55  50  85 N3        29.71F

ANTIGO         CLEAR     56  46  70 S7        29.72F

TOMAHAWK       MOCLDY    58  47  66 W7        29.72R

MERRILL        MOCLDY    57  43  60 CALM      29.70S

$$



WIZ013-073-160600-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  PTCLDY    57  48  72 N3        29.69S

MARINETTE      PTCLDY    62  47  57 CALM      29.72S

OCONTO         PTCLDY    51  49  94 CALM      29.71F

$$



WIZ017-030-035>037-045-160600-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        MOCLDY    60  46  60 W3        29.73R

WAUSAU         NOT AVBL

MOSINEE        PTCLDY    57  48  72 S5        29.70F

MARSHFIELD     MOCLDY    56  47  71 S5        29.71F

WISC RAPIDS    PTCLDY    57  47  69 S6        29.71F

STEVENS POINT  CLEAR     57  47  71 CALM      29.72F

WAUPACA        CLEAR     61  46  58 CALM      29.75F

SHAWANO        CLEAR     61  46  58 CALM      29.71F

CLINTONVILLE   CLEAR     59  48  67 S3        29.73F

WAUTOMA        PTCLDY    53  48  83 CALM      29.73F

$$



WIZ038-039-048-051-160600-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLEAR     60  50  69 S3        29.72F

APPLETON       CLEAR     61  48  63 S5        29.74F

OSHKOSH        CLEAR     57  46  66 S8        29.73F

FOND DU LAC    CLEAR     57  46  66 S7        29.75F

$$



WIZ022-050-052-160600-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        PTCLDY    55  45  69 CALM      29.71S

WASHINGTON ISL CLOUDY    63  48  57 SW6       29.70F

STURGEON BAY   PTCLDY    60  48  64 SW7       29.73F

MANITOWOC      CLEAR     63  46  54 SW5       29.74F

SHEBOYGAN      CLEAR     56  48  74 CALM      29.75F

$$



LMZ563-521-522-541>543-160600-

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 0500   65     230/  5/  6 1007.4F

KEWAUNEE LKSHORE 0424           CALM  /  1 1006.6

NORTHPORT PIER   0400          150/  4/  7 1007.1

N MID LAKE BUOY  0450   52 51  200/ 14/ 17 1006.0F         3/ 5

MENOMINEE LKSHOR 0424   65 71  210/  6/  9 1005.9

$$

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.