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.}

798
SXUS43 KGRB 280851
RECGRB
WIZ048-WIZ049-282100-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
351 AM CDT Sun Jun 28 2026

.EARLY THIS MORNING...East winds around 5 knots. Mostly clear.
Waves less than 1 foot. Near steady temperature in the lower 60s.
.TODAY...Southeast winds 5 to 15 knots. Mostly sunny. Waves
1 foot or less. Highs in the upper 70s.
.TONIGHT...Southeast winds 15 to 20 knots. Slight chance of
thunderstorms in the evening, then showers likely and chance of
thunderstorms after midnight. Waves 1 foot or less. Lows in the
upper 60s.
.MONDAY...South winds 10 to 15 knots. Chance of showers in the
morning. Waves 1 foot or less. Highs around 90.
.MONDAY NIGHT...Southwest winds around 15 knots. Mostly clear.
Waves 1 foot or less. Lows in the mid 70s.

$$

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

    
                        

104

ASUS43 KGRB 281110

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

600 AM CDT SUN JUN 28 2026



WIZ005-009-010>012-018-019-281200-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       PTCLDY    61  55  81 SE5       29.96F

MANITOWISH WTR PTCLDY    58  57  96 SE5       29.98F

ARBOR VITAE    PTCLDY    57  55  91 CALM      29.99S

EAGLE RIVER    PTCLDY    51  51 100 CALM      30.00S

LAND O LAKES   PTCLDY    49  49 100 CALM      30.02S

RHINELANDER    PTCLDY    53  53 100 CALM      30.00S

PHILLIPS       PTCLDY    56  55  93 CALM      29.97R

ANTIGO         CLEAR     56  54  94 CALM      30.00R

TOMAHAWK       CLEAR     55  54  96 CALM      29.99R

MERRILL        CLEAR     51  49  93 CALM      29.98R FOG

$$



WIZ013-073-281200-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLEAR     54  54 100 CALM      29.99F

MARINETTE      CLEAR     57  57 100 CALM      29.99S

OCONTO         CLEAR     51  51  99 CALM      29.98S

$$



WIZ017-030-035>037-045-281200-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        PTCLDY    56  55  97 E6        29.96S

WAUSAU         CLEAR     57  54  89 E3        29.98R

MOSINEE        CLEAR     55  54  94 CALM      29.98R

MARSHFIELD     PTCLDY    58  55  90 SE6       29.94S

WISC RAPIDS    PTCLDY    58  55  90 SE3       29.95F

STEVENS POINT  PTCLDY    59  56  90 CALM      29.97R

WAUPACA        CLEAR     57  55  95 CALM      29.99S

SHAWANO          N/A     60  60 100 CALM      29.98S

CLINTONVILLE   CLEAR     55  55  99 NE3       29.99S

WAUTOMA        PTCLDY    57  56  96 CALM      29.96S

$$



WIZ038-039-048-051-281200-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLEAR     58  55  90 NE5       29.97R

APPLETON       PTCLDY    64  55  72 CALM      29.97S

OSHKOSH        CLEAR     63  57  81 E3        29.96R

FOND DU LAC    MOCLDY    59  56  89 SE5       29.96S

$$



WIZ022-050-052-281200-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        CLEAR     60  58  92 SE3       29.98S

WASHINGTON ISL   N/A     53  50  89 CALM      30.00R FOG

STURGEON BAY   NOT AVBL

MANITOWOC      CLEAR     57  56  96 CALM      29.98S

SHEBOYGAN      MOCLDY    57  54  89 CALM      29.97R

$$



LMZ563-521-522-541>543-281200-

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 1100   62      10/  6/  6 1014.9R

KEWAUNEE LKSHORE 1018           80/  2/  3 1014.5

NORTHPORT PIER   1000          130/  2     1016.3

N MID LAKE BUOY  1050   63 62  120/  4/  6 1015.4S         0

MENOMINEE LKSHOR 1030   68 71   70/  5/  7 1015.1F

$$

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.