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.

Light Snow Fog/Mist

16°F

-9°C

Humidity 84%
Wind Speed S 14 mph
Barometer 30.01 in (1018.4 mb)
Dewpoint 12°F (-11°C)
Visibility 5.00 mi
Wind Chill2°F (-17°C)
Last update 18 Mar 2:53 am CDT
Extended Forecast for

Winnebago WI

  • Overnight

    Overnight: Snow. Low around 17. South wind 11 to 13 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.

    Low: 17 °F

    Snow

  • Wednesday

    Wednesday: A chance of snow and freezing rain before 10am, then a chance of flurries between 10am and 1pm. Mostly cloudy, with a high near 36. South wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 36 °F

    Chance Wintry
    Mix then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 10pm, then a chance of rain and snow between 10pm and midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 30. Southwest wind 3 to 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 30 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Thursday

    Thursday: A 30 percent chance of snow before 7am. Partly sunny, with a high near 40. Light and variable wind.

    High: 40 °F

    Chance Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 33. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 33 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Overnight
Snow. Low around 17. South wind 11 to 13 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Wednesday
A chance of snow and freezing rain before 10am, then a chance of flurries between 10am and 1pm. Mostly cloudy, with a high near 36. South wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
A slight chance of rain before 10pm, then a chance of rain and snow between 10pm and midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 30. Southwest wind 3 to 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Thursday
A 30 percent chance of snow before 7am. Partly sunny, with a high near 40. Light and variable wind.
Thursday Night
Mostly cloudy, with a low around 33. Calm wind becoming south southwest around 6 mph after midnight.
Friday
Partly sunny, with a high near 47.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Sunday
A slight chance of rain and snow before 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly cloudy, with a high near 48.
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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:
3:36 am CDT Mar 18, 2026
Forecast Valid:
3am CDT Mar 18, 2026-6pm CDT Mar 24, 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