National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Mostly Cloudy

21°F

-6°C

Humidity 78%
Wind Speed Calm
Barometer 30.22 in (1025.3 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 12 Feb 9:53 pm CST
Extended Forecast for

Winnebago WI

  • Tonight

    Tonight: Partly cloudy, with a low around 21. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 44. West southwest wind 6 to 9 mph.

    High: 44 °F

    Sunny

  • Friday Night

    Friday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 24. West wind around 6 mph becoming calm.

    Low: 24 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 41. Calm wind becoming south around 5 mph in the afternoon.

    High: 41 °F

    Areas Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30. South wind 5 to 7 mph.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, sunny, with a high near 43.

    High: 43 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 21. Calm wind becoming south southwest around 6 mph after midnight.
Friday
Sunny, with a high near 44. West southwest wind 6 to 9 mph.
Friday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 24. West wind around 6 mph becoming calm.
Saturday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 41. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 30. South wind 5 to 7 mph.
Sunday
Patchy fog before 10am. Otherwise, sunny, with a high near 43.
Sunday Night
Mostly cloudy, with a low around 31.
Washington's Birthday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
A 20 percent chance of rain after noon. Partly sunny, with a high near 46.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Wednesday
Rain likely. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winnebago WI
 44.06°N 88.53°W (Elev. 758 ft)
Last Update:
9:37 pm CST Feb 12, 2026
Forecast Valid:
10pm CST Feb 12, 2026-6pm CST Feb 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation