Heat and Fire Weather Concerns in the West

Heat will build over the Intermountain West and the Southwest the next couple of days. Lightning from dry thunderstorms can create new fire starts and combined with gusty winds may cause a fire to rapidly grow in Oregon and northern California. Elevated fire weather conditions are also expected in the Great Basin. Flash flooding will be possible in Arizona and west Texas, especially in burn scars. Read More >

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.}

112
SXUS43 KGRB 300915
RECGRB
WIZ048-WIZ049-302100-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
415 AM CDT Mon Jun 30 2025

.EARLY THIS MORNING...West winds around 5 knots. Patchy fog.
slight chance of showers. Waves less than 1 foot. Near steady
temperature around 70.
.TODAY...West winds 5 to 10 knots. Patchy fog in the morning.
slight chance of showers in the morning, then chance of
thunderstorms in the afternoon. Waves less than 1 foot. Highs
around 80.
.TONIGHT...West winds 5 to 10 knots. Slight chance of
thunderstorms in the evening. Waves 1 foot or less. Lows in the
mid 60s.
.TUESDAY...Northwest winds around 10 knots. Sunny. Waves 1 foot
or less. Highs in the upper 70s.
.TUESDAY NIGHT...West winds 5 to 10 knots. Mostly clear. Waves
1 foot or less. Lows in the mid 60s.

$$

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

    
                        

184

ASUS43 KGRB 300859

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

400 AM CDT MON JUN 30 2025



WIZ005-009-010>012-018-019-301000-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       CLEAR     56  56 100 CALM      29.86S FOG

MANITOWISH WTR NOT AVBL

ARBOR VITAE    MOCLDY    61  61  99 CALM      29.89S

EAGLE RIVER    PTCLDY    63  63 100 CALM      29.88F

LAND O LAKES   FOG       58  58 100 CALM      29.90S VSB 1

RHINELANDER    NOT AVBL

PHILLIPS       CLEAR     58  58 100 CALM      29.88S

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        NOT AVBL

$$



WIZ013-073-301000-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  CLOUDY    66  65  96 CALM      29.84F

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-301000-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        MOCLDY    64  64  97 CALM      29.89S

WAUSAU         NOT AVBL

MOSINEE        NOT AVBL

MARSHFIELD     FOG       66  65  96 W5        29.88F VSB 1/4

WISC RAPIDS    CLOUDY    66  65  96 W5        29.89S FOG

STEVENS POINT  PTCLDY    65  65  98 CALM      29.89S

WAUPACA        MOCLDY    68  67  96 CALM      29.87F

SHAWANO        MOCLDY    67  67 100 CALM      29.86F

CLINTONVILLE   NOT AVBL

WAUTOMA        CLEAR     65  65 100 NW3       29.88F

$$



WIZ038-039-048-051-301000-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  PTCLDY    68  66  93 S5        29.85F

APPLETON       MOCLDY    68  66  94 CALM      29.87F

OSHKOSH        PTCLDY    67  66  97 CALM      29.87F

FOND DU LAC    MOCLDY    67  66  97 CALM      29.87S

$$



WIZ022-050-052-301000-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   NOT AVBL

MANITOWOC      MOCLDY    68  68 100 CALM      29.86F

SHEBOYGAN      MOCLDY    68  67  96 NW3       29.86S

$$



LMZ563-521-522-541>543-301000-

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 0800   64      90/  9/ 10 1010.6F

KEWAUNEE LKSHORE 0818           30/  1/  2 1009.8

NORTHPORT PIER   0800          210/  1/  7   N/A

N MID LAKE BUOY  0840   58 54  170/ 12/ 12 1010.9S

S GREEN BAY BUOY 0800   69 68  260/  6/  6  990.3          0

CHAMBERS ISLAND  0840   68     180/  5/ 10   N/A

MENOMINEE LKSHOR 0818      73  240/  6/  7 1010.0

$$

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.

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