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

65°F

18°C

Humidity 84%
Wind Speed E 6 mph
Barometer 30.27 in (1024.5 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 17 Sep 7:53 pm CDT
Extended Forecast for

2 Miles NNW Winnebago WI

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Calm wind becoming east northeast around 5 mph after midnight.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Showers likely, mainly after 5pm. Increasing clouds, with a high near 67. East wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Partly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers, with thunderstorms also possible after 1am. Low around 57. East wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 57 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 64. East wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 64 °F

    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 55. Northeast wind around 10 mph.

    Low: 55 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 65.

    High: 65 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 61.

    High: 61 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. Calm wind becoming east northeast around 5 mph after midnight.
Friday
Showers likely, mainly after 5pm. Increasing clouds, with a high near 67. East wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers, with thunderstorms also possible after 1am. Low around 57. East wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers and possibly a thunderstorm. High near 64. East wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 55. Northeast wind around 10 mph.
Sunday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 61.
Monday Night
Mostly cloudy, with a low around 49.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Winnebago WI
 44.08°N 88.53°W (Elev. 787 ft)
Last Update:
7:51 pm CDT Sep 17, 2026
Forecast Valid:
8pm CDT Sep 17, 2026-6pm CDT Sep 24, 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