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.}

486
SXUS43 KGRB 011106
RECGRB
WIZ048-WIZ049-012100-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
606 AM CDT Wed Apr 1 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
10 AM CDT THURSDAY...

.TODAY...Northeast winds 10 to 15 knots. Partly sunny. Waves 1 to
3 feet. Highs in the upper 30s.
.TONIGHT...East winds 15 to 20 knots. Rain and freezing rain
after midnight. Waves 1 to 3 feet building to 2 to 4 feet after
midnight. Near steady temperature in the lower 30s.
.THURSDAY...East winds 15 to 20 knots. Freezing rain in the
morning. Rain through the day. Chance of thunderstorms in the
afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the
afternoon. Highs in the lower 50s.
.THURSDAY NIGHT...Southwest winds 10 to 20 knots. Rain likely and
chance of thunderstorms in the evening. Waves 1 foot or less.
Lows in the upper 30s.

$$

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

    
                        

273

ASUS43 KGRB 011459

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

1000 AM CDT WED APR 01 2026



WIZ005-009-010>012-018-019-011600-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       CLOUDY    27  18  69 E8        30.37F

MANITOWISH WTR NOT AVBL

ARBOR VITAE    CLOUDY    26  17  68 NE9       30.32F

EAGLE RIVER    PTSUNNY   28  13  54 NE8       30.32F

LAND O LAKES   PTSUNNY   28  16  61 NE7       30.35F

RHINELANDER    CLOUDY    28  17  63 E7        30.31F

PHILLIPS       CLOUDY    29  20  69 E12       30.30F

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        CLOUDY    32  19  58 E7        30.30S

$$



WIZ013-073-011600-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  PTSUNNY   27  17  66 N13       30.36R

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-011600-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        CLOUDY    32  21  64 E10       30.27F

WAUSAU         NOT AVBL

MOSINEE        CLOUDY    32  23  69 E13       30.30S

MARSHFIELD     CLOUDY    32  23  69 E16       30.28S

WISC RAPIDS    CLOUDY    34  23  64 SE14G21   30.30S

STEVENS POINT  NOT AVBL

WAUPACA        PTSUNNY   35  21  57 NE9G20    30.35F

SHAWANO        PTSUNNY   33  20  59 E14       30.36F

CLINTONVILLE   NOT AVBL

WAUTOMA        PTSUNNY   33  22  63 NE16G24   30.30F

$$



WIZ038-039-048-051-011600-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLOUDY    29  21  72 NE24G30   30.36S

APPLETON       PTSUNNY   32  21  64 NE23G29   30.33R

OSHKOSH        PTSUNNY   31  21  66 NE15      30.31F

FOND DU LAC    PTSUNNY   32  22  66 NE20G28   30.31S

$$



WIZ022-050-052-011600-

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    30  24  78 NE13G22   30.34F

SHEBOYGAN      CLOUDY    30  23  75 NE24G32   30.32R

$$



LMZ563-521-522-541>543-011600-

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 1400   31      20/ 25/ 28 1026.8R

NORTHPORT PIER   1400   27     350/ 13/ 17 1029.8

MENOMINEE LKSHOR 1412          360/ 12/ 19 1028.4

$$

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.