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.

Overcast

54°F

12°C

Humidity 67%
Wind Speed E 7 mph
Barometer 30.22 in (1023.2 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 15 Oct 1:53 am CDT
Extended Forecast for

Winnebago WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 48. East wind around 6 mph.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 1pm. High near 58. East wind 8 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 58 °F

    Slight Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly before 2am. Low around 45. East northeast wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Showers

  • Friday

    Friday: A 40 percent chance of showers before 1pm. Partly sunny, with a high near 54. Breezy, with a north wind 16 to 22 mph, with gusts as high as 34 mph.

    High: 54 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Areas of frost after 3am. Otherwise, mostly clear, with a low around 34. North wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, sunny, with a high near 57.

    High: 57 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 48. East wind around 6 mph.
Thursday
Showers, mainly after 1pm. High near 58. East wind 8 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Showers, mainly before 2am. Low around 45. East northeast wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 40 percent chance of showers before 1pm. Partly sunny, with a high near 54. Breezy, with a north wind 16 to 22 mph, with gusts as high as 34 mph.
Friday Night
Areas of frost after 3am. Otherwise, mostly clear, with a low around 34. North wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 57.
Saturday Night
Clear, with a low around 41.
Sunday
Sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winnebago WI
 44.06°N 88.53°W (Elev. 758 ft)
Last Update:
1:21 am CDT Oct 15, 2026
Forecast Valid:
2am CDT Oct 15, 2026-6pm CDT Oct 21, 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