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.}

802
SXUS43 KGRB 160816
RECGRB
WIZ048-WIZ049-162100-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
316 AM CDT Fri Oct 16 2026

...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM CDT SATURDAY...

.EARLY THIS MORNING...Northwest winds 20 to 25 knots. Chance of
rain showers. Waves 3 to 6 feet. Near steady temperature in the
lower 50s.
.TODAY...North winds 20 to 25 knots. Rain showers likely in the
morning. Waves 4 to 7 feet. Highs in the lower 50s.
.TONIGHT...North winds 10 to 25 knots backing northwest 5 to
15 knots after midnight. Mostly clear. Waves 3 to 5 feet. Lows in
the mid 30s.
.SATURDAY...Southwest winds 5 to 15 knots. Areas of frost in the
morning. Waves 1 to 3 feet. Highs in the mid 50s.
.SATURDAY NIGHT...Southwest winds 15 to 25 knots. Clear. Waves
3 to 6 feet. Lows in the lower 40s.

$$

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

    
                        

001

ASUS43 KGRB 160759

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

300 AM CDT FRI OCT 16 2026



WIZ005-009-010>012-018-019-160900-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       LGT RAIN  44  44 100 N9        29.94R

MANITOWISH WTR NOT AVBL

ARBOR VITAE    RAIN      45  43  93 N10G16    29.88R

EAGLE RIVER    NOT AVBL

LAND O LAKES   NOT AVBL

RHINELANDER    LGT RAIN  45  43  93 NW5       29.86R

PHILLIPS       LGT RAIN  44  44  99 CALM      29.91R

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        RAIN      45  45  99 NW7       29.87R

$$



WIZ013-073-160900-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  LGT RAIN  45  44  97 NW7       29.81R

MARINETTE      NOT AVBL

$$



WIZ017-030-035>037-045-160900-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        CLOUDY    46  46  99 NW7       29.91R

WAUSAU         LGT RAIN  48  45  89 NW12      29.87R

MOSINEE        NOT AVBL

MARSHFIELD     LGT RAIN  47  45  93 NW13      29.90R

WISC RAPIDS    LGT RAIN  48  46  93 NW12      29.90R

STEVENS POINT  NOT AVBL

WAUPACA        NOT AVBL

SHAWANO        NOT AVBL

CLINTONVILLE   NOT AVBL

WAUTOMA        LGT RAIN  49  47  93 W12G22    29.89R

$$



WIZ038-039-048-051-160900-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  CLOUDY    49  47  93 NW6       29.82R

APPLETON       NOT AVBL

OSHKOSH        LGT RAIN  50  48  93 NW13      29.83R FOG

FOND DU LAC    LGT RAIN  50  49  96 NW12      29.84R FOG

$$



WIZ022-050-052-160900-

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    51  49  92 NW13G18   29.81R

SHEBOYGAN      CLOUDY    51  50  96 NW12      29.81R

$$



LMZ563-521-522-541>543-160900-

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 0740   52     310/ 12/ 16 1009.0R

KEWAUNEE LKSHORE 0724          330/  8/ 15 1008.3

NORTHPORT PIER   0700          310/ 19/ 23 1008.8

N MID LAKE BUOY  0740   53 60   20/ 16/ 19 1007.2R

MENOMINEE LKSHOR 0724   48 62  310/ 10/ 13 1009.2

$$

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.