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 with Haze

42°F

6°C

Humidity 82%
Wind Speed E 12 mph
Barometer 29.84 in (1011.6 mb)
Dewpoint 37°F (3°C)
Visibility 6.00 mi
Wind Chill35°F (2°C)
Last update 17 Feb 2:53 pm CST
Extended Forecast for

Winnebago WI

  • Tonight

    Tonight: Rain, with thunderstorms also possible after midnight. Low around 40. East wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain and thunderstorms, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 54. South southeast wind 9 to 16 mph becoming west in the afternoon. Winds could gust as high as 25 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 54 °F

    Chance Rain
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30. West wind 5 to 8 mph becoming southeast after midnight.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain after noon. Mostly sunny, with a high near 46. Southeast wind 6 to 9 mph becoming east northeast in the afternoon.

    High: 46 °F

    Mostly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely before 3am, then rain and snow likely. Mostly cloudy, with a low around 31. East northeast wind 9 to 11 mph becoming north northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%.

    Low: 31 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Friday

    Friday: Rain and snow likely, mainly before noon. Mostly cloudy, with a high near 37. Chance of precipitation is 70%.

    High: 37 °F

    Rain/Snow
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Chance Snow

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Partly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow

Detailed Forecast

Tonight
Rain, with thunderstorms also possible after midnight. Low around 40. East wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A 50 percent chance of rain and thunderstorms, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 54. South southeast wind 9 to 16 mph becoming west in the afternoon. Winds could gust as high as 25 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 30. West wind 5 to 8 mph becoming southeast after midnight.
Thursday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 46. Southeast wind 6 to 9 mph becoming east northeast in the afternoon.
Thursday Night
Rain likely before 3am, then rain and snow likely. Mostly cloudy, with a low around 31. East northeast wind 9 to 11 mph becoming north northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%.
Friday
Rain and snow likely, mainly before noon. Mostly cloudy, with a high near 37. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 25.
Saturday
A 20 percent chance of snow after noon. Partly sunny, with a high near 35.
Saturday Night
A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 13.
Monday
Sunny, with a high near 27.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
A 20 percent chance of snow. Mostly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winnebago WI
 44.08°N 88.53°W (Elev. 787 ft)
Last Update:
2:57 pm CST Feb 17, 2026
Forecast Valid:
3pm CST Feb 17, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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