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 83%
Wind Speed E 10 mph
Barometer 30.11 in (1019.6 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 15 Oct 9:53 am CDT
Extended Forecast for

Winnebago WI

  • Today

    Today: Showers likely with a chance of drizzle, mainly between noon and 1pm, then showers after 1pm. High near 59. East southeast wind 10 to 13 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 59 °F

    Chance
    Showers then
    Showers

  • Tonight

    Tonight: Showers, mainly before 2am. Low around 49. Windy, with an east northeast wind 8 to 13 mph becoming northwest 18 to 28 mph after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers and
    Windy

  • Friday

    Friday: A 40 percent chance of showers before 1pm. Partly sunny, with a high near 52. Windy, with a north wind 25 to 28 mph, with gusts as high as 38 mph.

    High: 52 °F

    Chance
    Showers and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 38. Breezy, with a north wind 20 to 25 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 29 mph.

    Low: 38 °F

    Mostly Clear
    and Breezy
    then Clear

  • Saturday

    Saturday: Sunny, with a high near 55. Southwest wind 7 to 16 mph, with gusts as high as 23 mph.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 46. Windy.

    Low: 46 °F

    Clear and
    Windy

  • Sunday

    Sunday: Sunny, with a high near 62. Windy.

    High: 62 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Today
Showers likely with a chance of drizzle, mainly between noon and 1pm, then showers after 1pm. High near 59. East southeast wind 10 to 13 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tonight
Showers, mainly before 2am. Low around 49. Windy, with an east northeast wind 8 to 13 mph becoming northwest 18 to 28 mph after midnight. 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 52. Windy, with a north wind 25 to 28 mph, with gusts as high as 38 mph.
Friday Night
Mostly clear, with a low around 38. Breezy, with a north wind 20 to 25 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 29 mph.
Saturday
Sunny, with a high near 55. Southwest wind 7 to 16 mph, with gusts as high as 23 mph.
Saturday Night
Clear, with a low around 46. Windy.
Sunday
Sunny, with a high near 62. Windy.
Sunday Night
Mostly clear, with a low around 49.
Monday
Sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winnebago WI
 44.06°N 88.5°W (Elev. 748 ft)
Last Update:
9:37 am CDT Oct 15, 2026
Forecast Valid:
10am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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