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

27°F

-3°C

Humidity 96%
Wind Speed Calm
Barometer 30.16 in (1022.6 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 9 Jan 8:53 pm CST
Extended Forecast for

Winnebago WI

  • Tonight

    Tonight: A 40 percent chance of snow, mainly after 5am. Increasing clouds, with a low around 27. Light and variable wind.

    Low: 27 °F

    Partly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow, mainly before noon. High near 32. Light west southwest wind becoming west northwest 11 to 16 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 32 °F

    Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 20. West northwest wind 15 to 17 mph, with gusts as high as 25 mph.

    Low: 20 °F

    Chance Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 28. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Monday Night

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

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of rain. Mostly cloudy, with a high near 39.

    High: 39 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.

    Low: 22 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
A 40 percent chance of snow, mainly after 5am. Increasing clouds, with a low around 27. Light and variable wind.
Saturday
Snow, mainly before noon. High near 32. Light west southwest wind becoming west northwest 11 to 16 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Saturday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 20. West northwest wind 15 to 17 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 28. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 22. Southwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 36.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 39.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.
Wednesday
A 20 percent chance of snow. Partly sunny, with a high near 27.
Wednesday Night
Partly cloudy, with a low around 13.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 25.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 19.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 28.
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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:
8:32 pm CST Jan 9, 2026
Forecast Valid:
9pm CST Jan 9, 2026-6pm CST Jan 16, 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