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

36°F

2°C

Humidity 82%
Wind Speed NE 13 G 22 mph
Barometer 29.82 in (1010.0 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 22 Mar 7:53 am CDT
Extended Forecast for

Winnebago WI

  • Today

    Today: A slight chance of rain before 10am, then a slight chance of snow between 10am and 11am. Mostly cloudy, with a high near 42. North wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 22. North wind 6 to 8 mph.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 42. Light and variable wind becoming north northwest around 5 mph in the morning.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 29. Light southeast wind becoming south 5 to 9 mph in the evening.

    Low: 29 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 50. Southwest wind 8 to 10 mph.

    High: 50 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain and snow before 1pm. Mostly cloudy, with a high near 46. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance Rain

Detailed Forecast

Today
A slight chance of rain before 10am, then a slight chance of snow between 10am and 11am. Mostly cloudy, with a high near 42. North wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 22. North wind 6 to 8 mph.
Monday
Sunny, with a high near 42. Light and variable wind becoming north northwest around 5 mph in the morning.
Monday Night
Increasing clouds, with a low around 29. Light southeast wind becoming south 5 to 9 mph in the evening.
Tuesday
Mostly cloudy, with a high near 50. Southwest wind 8 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
A slight chance of rain and snow before 1pm. Mostly cloudy, with a high near 46. Chance of precipitation is 20%.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 36.
Thursday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 53.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 40.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 48.
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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:
8:26 am CDT Mar 22, 2026
Forecast Valid:
8am CDT Mar 22, 2026-6pm CDT Mar 28, 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