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.

Fair

86°F

30°C

Humidity 42%
Wind Speed Vrbl 7 G 18 mph
Barometer 30.10 in (1017.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 3 Oct 1:53 pm CDT
Extended Forecast for

Winnebago WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 87. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. South southwest wind around 6 mph.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86. South southwest wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65. South southwest wind around 11 mph, with gusts as high as 22 mph.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. South southwest wind 13 to 18 mph, with gusts as high as 31 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Clear
    then Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 87. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 63. South southwest wind around 6 mph.
Saturday
Sunny, with a high near 86. South southwest wind 6 to 15 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 65. South southwest wind around 11 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 80. South southwest wind 13 to 18 mph, with gusts as high as 31 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 58.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winnebago WI
 44.08°N 88.53°W (Elev. 787 ft)
Last Update:
2:41 pm CDT Oct 3, 2025
Forecast Valid:
2pm CDT Oct 3, 2025-6pm CDT Oct 9, 2025
 
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