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

66°F

19°C

Humidity 84%
Wind Speed N 8 mph
Barometer 30.24 in (1023.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 17 Sep 2:53 pm CDT
Extended Forecast for

3 Miles SSW Eureka WI

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. Light east northeast wind.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers before 1pm, then a chance of showers after 3pm. Mostly cloudy, with a high near 67. East wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 67 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Some of the storms could produce heavy rainfall. Low around 56. East wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 56 °F

    Showers
    Likely then
    Heavy Rain

  • Saturday

    Saturday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 64. East wind 10 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    High: 64 °F

    Heavy Rain

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 55. Northeast wind 8 to 10 mph.

    Low: 55 °F

    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 65.

    High: 65 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 60.

    High: 60 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 54. Light east northeast wind.
Friday
A slight chance of showers before 1pm, then a chance of showers after 3pm. Mostly cloudy, with a high near 67. East wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Friday Night
Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Some of the storms could produce heavy rainfall. Low around 56. East wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 64. East wind 10 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 55. Northeast wind 8 to 10 mph.
Sunday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 51.
Monday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 60.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Eureka WI
 43.96°N 88.87°W (Elev. 843 ft)
Last Update:
2:37 pm CDT Sep 17, 2026
Forecast Valid:
3pm 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