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

36°F

2°C

Humidity 82%
Wind Speed Calm
Barometer 29.91 in (1014.5 mb)
Dewpoint 31°F (-1°C)
Visibility 8.00 mi
Last update 14 Feb 5:53 pm CST
Extended Forecast for

Winnebago WI

  • Tonight

    Tonight: Mostly clear, with a low around 29. Light and variable wind becoming south around 6 mph in the evening.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 45. West northwest wind 3 to 6 mph.

    High: 45 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 30. Calm wind becoming south 5 to 8 mph after midnight.

    Low: 30 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 56. South southwest wind 5 to 9 mph becoming light and variable in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32. Calm wind becoming east northeast around 6 mph after midnight.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 44.

    High: 44 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain. Low around 38. Chance of precipitation is 80%.

    Low: 38 °F

    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain. Partly sunny, with a high near 51.

    High: 51 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 29. Light and variable wind becoming south around 6 mph in the evening.
Sunday
Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 45. West northwest wind 3 to 6 mph.
Sunday Night
Increasing clouds, with a low around 30. Calm wind becoming south 5 to 8 mph after midnight.
Washington's Birthday
Mostly sunny, with a high near 56. South southwest wind 5 to 9 mph becoming light and variable in the afternoon.
Monday Night
Partly cloudy, with a low around 32. Calm wind becoming east northeast around 6 mph after midnight.
Tuesday
Mostly cloudy, with a high near 44.
Tuesday Night
Rain. Low around 38. Chance of precipitation is 80%.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 51.
Wednesday Night
A chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Thursday
A slight chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 20%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Friday
A 30 percent chance of snow. Mostly cloudy, with a high near 33.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 19.
Saturday
A 20 percent chance of snow. Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winnebago WI
 44.06°N 88.53°W (Elev. 758 ft)
Last Update:
5:27 pm CST Feb 14, 2026
Forecast Valid:
6pm CST Feb 14, 2026-6pm CST Feb 21, 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