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.}

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

    
                        

137

ASUS43 KGRB 090159

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

800 PM CST THU JAN 08 2026



WIZ005-009-010>012-018-019-090300-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       FOG       31  30  96 CALM      29.65S VSB 1/4

MANITOWISH WTR NOT AVBL

ARBOR VITAE    MIX PCPN  33  33  99 NE5       29.58F

EAGLE RIVER    CLOUDY    32  32 100 N8        29.58F FOG

LAND O LAKES   NOT AVBL

RHINELANDER    CLOUDY    32  32 100 VRB5      29.56S FOG

PHILLIPS       RAIN      32  32 100 N10       29.57F

ANTIGO         NOT AVBL

TOMAHAWK       NOT AVBL

MERRILL        LGT RAIN  34  32  92 N7        29.51F

$$



WIZ013-073-090300-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  LGT RAIN  33  33 100 N6        29.57F VSB 1/2

MARINETTE      MIX PCPN  37  37 100 NE7       29.53F FOG

$$



WIZ017-030-035>037-045-090300-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        CLOUDY    33  33  97 N12       29.50F

WAUSAU         HVY RAIN  35  35 100 N10       29.46F FOG

MOSINEE        CLOUDY    36  34  93 N20       29.43F FOG

MARSHFIELD     LGT RAIN  35  35 100 N15G25    29.43F FOG

WISC RAPIDS    RAIN      37  36  96 E6        29.45S FOG

STEVENS POINT  RAIN      38  37  99 E7        29.46R

WAUPACA        NOT AVBL

SHAWANO        RAIN     N/A N/A N/A NE9       29.49F

CLINTONVILLE   NOT AVBL

WAUTOMA        LGT RAIN  39  38  96 N8        29.39F FOG

$$



WIZ038-039-048-051-090300-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  HVY RAIN  39  39 100 E8        29.46F FOG

APPLETON       LGT RAIN  43  43 100 E9        29.41F

OSHKOSH        LGT RAIN  39  39 100 E7        29.40F FOG

FOND DU LAC    CLOUDY    46  45  96 SE17G25   29.38F

$$



WIZ022-050-052-090300-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        NOT AVBL

WASHINGTON ISL NOT AVBL

STURGEON BAY   LGT RAIN  41  39  93 SE9       29.53F FOG

MANITOWOC      LGT RAIN  42  42 100 SE13      29.46F FOG

SHEBOYGAN      LGT RAIN  45  44  97 SE8       29.43F FOG

$$



LMZ563-521-522-541>543-090300-

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 0100   42     120/ 19/ 21  998.7F

KEWAUNEE LKSHORE 0130   41     140/  5/  9  999.7F

NORTHPORT PIER   0100   37      90/  7/  9   N/A

MENOMINEE LKSHOR 0130   33 35   20/  8/  9 1000.5F

$$

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.