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

44°F

7°C

Humidity 83%
Wind Speed W 5 mph
Barometer 29.92 in (1013.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 20 Mar 9:53 pm CDT
Extended Forecast for

Winnebago WI

  • Tonight

    Tonight: Areas of fog after midnight. Otherwise, mostly cloudy, with a low around 35. Northwest wind around 6 mph becoming calm in the evening.

    Low: 35 °F

    Partly Cloudy
    then Areas
    Fog

  • Saturday

    Saturday: Partly sunny, with a high near 57. Southeast wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 57 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. South southwest wind 6 to 8 mph becoming north northeast after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 42. North northeast wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 42 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 24. North northeast wind 6 to 10 mph.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.

    Low: 29 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Areas of fog after midnight. Otherwise, mostly cloudy, with a low around 35. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 57. Southeast wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 37. South southwest wind 6 to 8 mph becoming north northeast after midnight.
Sunday
A 40 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 42. North northeast wind 10 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 24. North northeast wind 6 to 10 mph.
Monday
Mostly sunny, with a high near 42.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Mostly cloudy, with a high near 50.
Tuesday Night
A slight chance of rain and snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 43.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 53.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
Partly sunny, with a high near 39.
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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:
9:22 pm CDT Mar 20, 2026
Forecast Valid:
10pm CDT Mar 20, 2026-6pm CDT Mar 27, 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