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.

Overcast

41°F

5°C

Humidity 49%
Wind Speed W 18 G 30 mph
Barometer 29.88 in (1012.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 18 Apr 4:53 pm CDT
Extended Forecast for

Winnebago WI

  • Tonight

    Tonight: Partly cloudy, with a low around 32. West wind 8 to 18 mph, with gusts as high as 30 mph.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of snow showers, mixing with rain after 9am, then gradually ending. Partly sunny, with a high near 46. Northwest wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. North northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 51. Light south wind becoming south southwest 5 to 10 mph in the morning.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. South wind around 10 mph, with gusts as high as 21 mph.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 32. West wind 8 to 18 mph, with gusts as high as 30 mph.
Sunday
A slight chance of snow showers, mixing with rain after 9am, then gradually ending. Partly sunny, with a high near 46. Northwest wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 29. North northwest wind 5 to 10 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 51. Light south wind becoming south southwest 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 41. South wind around 10 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 73.
Thursday Night
Showers likely. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 67.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 42.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 58.
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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:
1:56 pm CDT Apr 18, 2026
Forecast Valid:
5pm CDT Apr 18, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation