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

22°F

-6°C

Humidity 92%
Wind Speed S 14 mph
Barometer 29.42 in (998.1 mb)
Dewpoint 20°F (-7°C)
Visibility 1.25 mi
Wind Chill9°F (-13°C)
Last update 16 Jan 4:53 am CST
Extended Forecast for

Winnebago WI

Winter Weather Advisory until January 16, 11:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 16, 11:00am

    NOW until 11:00am Fri

    Winter Weather Advisory

  • Overnight

    Low: 23 °F

    Snow

  • Friday

    Friday: Snow, mainly before 11am. High near 32. West wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 32 °F

    Snow then
    Chance Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 14. West wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 14 °F

    Chance Snow

  • Saturday

    Saturday: Snow likely. Mostly cloudy, with a high near 24. West wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 24 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 4. West northwest wind 9 to 15 mph, with gusts as high as 22 mph.

    Low: 4 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow likely after noon. Mostly cloudy, with a high near 14. Chance of precipitation is 60%.

    High: 14 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around -2.

    Low: -2 °F

    Chance Snow
    then Mostly
    Cloudy

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near 3.

    High: 3 °F

    Cold

Detailed Forecast

Overnight
Snow. Steady temperature around 23. Southwest wind around 9 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of around an inch possible.
Friday
Snow, mainly before 11am. High near 32. West wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 14. West wind 11 to 14 mph, with gusts as high as 23 mph.
Saturday
Snow likely. Mostly cloudy, with a high near 24. West wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 4. West northwest wind 9 to 15 mph, with gusts as high as 22 mph.
Sunday
Snow likely after noon. Mostly cloudy, with a high near 14. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around -2.
M.L.King Day
Partly sunny and cold, with a high near 3.
Monday Night
Partly cloudy, with a low around -4.
Tuesday
Partly sunny and cold, with a high near 10.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 3.
Wednesday
A 30 percent chance of snow. Partly sunny, with a high near 20.
Wednesday Night
Mostly cloudy, with a low around 7.
Thursday
Partly sunny, with a high near 19.
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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:
3:57 am CST Jan 16, 2026
Forecast Valid:
5am CST Jan 16, 2026-6pm CST Jan 22, 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