National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Fog/Mist

26°F

-3°C

Humidity 92%
Wind Speed S 12 mph
Barometer 29.78 in (1009.8 mb)
Dewpoint 24°F (-4°C)
Visibility 5.00 mi
Wind Chill15°F (-9°C)
Last update 27 Feb 6:53 am CST
Extended Forecast for

3 Miles ESE Winnebago WI

  • Today

    Today: Mostly sunny, with a high near 45. South wind 9 to 18 mph becoming west in the afternoon. Winds could gust as high as 29 mph.

    High: 45 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 15. West wind 14 to 18 mph, with gusts as high as 30 mph.

    Low: 15 °F

    Partly Cloudy

  • Saturday

    Saturday: Snow, mainly after noon. High near 23. North northwest wind 9 to 14 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 23 °F

    Chance Snow
    then Snow

  • Saturday Night

    Saturday Night: Cloudy during the early evening, then gradual clearing, with a low around 5. North wind 8 to 10 mph.

    Low: 5 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Mostly sunny, with a high near 23. North wind 6 to 9 mph.

    High: 23 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly before noon. Partly sunny, with a high near 37.

    High: 37 °F

    Chance Snow

Detailed Forecast

Today
Mostly sunny, with a high near 45. South wind 9 to 18 mph becoming west in the afternoon. Winds could gust as high as 29 mph.
Tonight
Partly cloudy, with a low around 15. West wind 14 to 18 mph, with gusts as high as 30 mph.
Saturday
Snow, mainly after noon. High near 23. North northwest wind 9 to 14 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Cloudy during the early evening, then gradual clearing, with a low around 5. North wind 8 to 10 mph.
Sunday
Mostly sunny, with a high near 23. North wind 6 to 9 mph.
Sunday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 12.
Monday
Partly sunny, with a high near 33.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
A 30 percent chance of snow, mainly before noon. Partly sunny, with a high near 37.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
A 20 percent chance of rain. Sunny, with a high near 42.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 29.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Winnebago WI
 44.03°N 88.44°W (Elev. 748 ft)
Last Update:
6:46 am CST Feb 27, 2026
Forecast Valid:
7am CST Feb 27, 2026-6pm CST Mar 5, 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