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

Hazardous Weather Conditions

Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Fair

41°F

5°C

Humidity 65%
Wind Speed E 9 mph
Barometer 30.09 in (1020.0 mb)
Dewpoint 30°F (-1°C)
Visibility 9.00 mi
Wind Chill35°F (2°C)
Last update 19 Mar 3:53 pm CDT
Extended Forecast for

Winnebago WI

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. East southeast wind 5 to 9 mph becoming west southwest after midnight.

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 46. Northwest wind 6 to 8 mph.

    High: 46 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34. Light and variable wind.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 50. South southeast wind 5 to 7 mph.

    High: 50 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 36. South southeast wind 7 to 9 mph becoming north northeast after midnight.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 33. East southeast wind 5 to 9 mph becoming west southwest after midnight.
Friday
Mostly cloudy, with a high near 46. Northwest wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 34. Light and variable wind.
Saturday
Partly sunny, with a high near 50. South southeast wind 5 to 7 mph.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 36. South southeast wind 7 to 9 mph becoming north northeast after midnight.
Sunday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 44.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly cloudy, with a high near 45.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winnebago WI
 44.08°N 88.53°W (Elev. 787 ft)
Last Update:
4:23 pm CDT Mar 19, 2026
Forecast Valid:
4pm CDT Mar 19, 2026-6pm CDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation