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.}

983
SXUS43 KGRB 282231
RECGRB
WIZ048-WIZ049-290900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
531 PM CDT Thu May 28 2026

.REST OF THE AFTERNOON...East winds 5 to 10 knots. Sunny. Waves
1 foot or less. Near steady temperature in the mid 60s.
.TONIGHT...East winds around 5 knots veering south up to 5 knots
after midnight. Mostly clear. Waves 1 foot or less. Lows in the
lower 50s.
.FRIDAY...Southwest winds around 5 knots. Sunny. Waves less than
1 foot. Highs in the mid 70s.
.FRIDAY NIGHT...South winds up to 5 knots backing east after
midnight. Partly cloudy. Waves 1 foot or less. Lows in the mid
50s.
.SATURDAY...East winds 10 to 15 knots. Mostly sunny. Waves 1 foot
or less. Highs in the mid 60s.

$$

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

    
                        

453

ASUS43 KGRB 282210

RWRGRB



NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE GREEN BAY WI

500 PM CDT THU MAY 28 2026



WIZ005-009-010>012-018-019-282300-

NORTH CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRONWOOD       SUNNY     70  46  42 N6        30.20F

MANITOWISH WTR SUNNY     75  40  28 S5        30.19F

ARBOR VITAE    SUNNY     76  37  24 S8        30.20F

EAGLE RIVER    SUNNY     75  35  22 SE6       30.19F

LAND O LAKES   SUNNY     78  33  19 S5        30.21F

RHINELANDER    SUNNY     74  40  29 VRB3      30.19F

PHILLIPS       SUNNY     76  45  32 SE3       30.18F

ANTIGO         SUNNY     72  46  39 SE3       30.20F

TOMAHAWK       SUNNY     77  40  27 S3        30.19F

MERRILL        SUNNY     75  40  29 CALM      30.18F

$$



WIZ013-073-282300-

NORTHEAST WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

IRON MOUNTAIN  SUNNY     76  43  30 N3        30.18F

MARINETTE      SUNNY     66  40  38 SE7       30.23F

$$



WIZ017-030-035>037-045-282300-

CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

MEDFORD        SUNNY     74  48  39 N3        30.19F

WAUSAU         SUNNY     75  45  34 VRB6      30.18F

MOSINEE        SUNNY     73  46  38 CALM      30.19F

MARSHFIELD     SUNNY     74  49  41 E7        30.18F

WISC RAPIDS    SUNNY     76  46  34 NE8       30.17F

STEVENS POINT  SUNNY     76  43  30 E8        30.19F

WAUPACA        SUNNY     74  46  36 NE8       30.22S

SHAWANO          N/A     73  43  34 E7        30.20F

CLINTONVILLE   SUNNY     71  48  43 SE7       30.21F

WAUTOMA        SUNNY     75  47  36 E9        30.17F

$$



WIZ038-039-048-051-282300-

FOX VALLEY



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

NWS GREEN BAY  SUNNY     67  48  50 NE10      30.20F

APPLETON       SUNNY     72  48  43 NE9       30.20F

OSHKOSH        SUNNY     70  51  51 NE12      30.18F

FOND DU LAC    SUNNY     72  49  44 NE13      30.18F

$$



WIZ022-050-052-282300-

EAST CENTRAL WISCONSIN



CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS

EPHRAIM        SUNNY     64  41  44 N6        30.21F

WASHINGTON ISL SUNNY     64  41  42 N5        30.21F

STURGEON BAY   SUNNY     65  40  39 NE5       30.22F

MANITOWOC      SUNNY     63  43  48 NE7       30.21F

SHEBOYGAN      SUNNY     62  43  49 NE12      30.20F

$$



LMZ563-521-522-541>543-282300-

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 2200   50      10/  8/  9 1023.3F

KEWAUNEE LKSHORE 2124           30/  5/  7 1023.2

NORTHPORT PIER   2100          120/  6/  8 1024.4

MENOMINEE LKSHOR 2124   59 63  360/  2/  3 1023.3

$$

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.