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

5°F

-15°C

Humidity 79%
Wind Speed W 6 mph
Barometer 29.92 in (1016.1 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 2 Jan 7:53 am CST
Extended Forecast for

Winnebago WI

  • Today

    Today: Sunny, with a high near 16. West wind 7 to 10 mph.

    High: 16 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 9. West northwest wind 5 to 7 mph.

    Low: 9 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of snow before 5pm. Cloudy, with a high near 21. West wind 5 to 8 mph.

    High: 21 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 4. West northwest wind 3 to 6 mph.

    Low: 4 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Increasing clouds, with a high near 25. Calm wind becoming south around 5 mph in the afternoon.

    High: 25 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Snow likely before 3am, then a chance of snow and freezing rain. Mostly cloudy, with a low around 18. Chance of precipitation is 70%.

    Low: 18 °F

    Snow Likely
    then Chance
    Wintry Mix

  • Monday

    Monday: A slight chance of freezing rain before noon. Partly sunny, with a high near 33. Chance of precipitation is 10%.

    High: 33 °F

    Slight Chance
    Freezing Rain
    then Partly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of freezing rain before noon, then a chance of rain. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.

    High: 34 °F

    Slight Chance
    Freezing Rain
    then Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 16. West wind 7 to 10 mph.
Tonight
Increasing clouds, with a low around 9. West northwest wind 5 to 7 mph.
Saturday
A 20 percent chance of snow before 5pm. Cloudy, with a high near 21. West wind 5 to 8 mph.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 4. West northwest wind 3 to 6 mph.
Sunday
Increasing clouds, with a high near 25. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Snow likely before 3am, then a chance of snow and freezing rain. Mostly cloudy, with a low around 18. Chance of precipitation is 70%.
Monday
A slight chance of freezing rain before noon. Partly sunny, with a high near 33. Chance of precipitation is 10%.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
A slight chance of freezing rain before noon, then a chance of rain. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
Partly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
A 20 percent chance of rain. Mostly cloudy, with a high near 37.
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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:
7:36 am CST Jan 2, 2026
Forecast Valid:
8am CST Jan 2, 2026-6pm CST Jan 8, 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