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.

Fair

62°F

17°C

Humidity 90%
Wind Speed Calm
Barometer 29.94 in (1012.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 19 Aug 3:53 am CDT
Extended Forecast for

3 Miles SSE Butte Des Morts WI

  • Today

    Today: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 79. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 79 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 57. North northwest wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 81. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 64. South southwest wind around 9 mph. Chance of precipitation is 50%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. South southwest wind around 10 mph.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of thunderstorms before 7pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 79. Calm wind becoming north northwest around 6 mph in the afternoon.
Tonight
Partly cloudy, with a low around 57. North northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 81. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 64. South southwest wind around 9 mph. Chance of precipitation is 50%.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. South southwest wind around 10 mph.
Friday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 57.
Monday
Mostly sunny, with a high near 78.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Butte Des Morts WI
 44.04°N 88.62°W (Elev. 774 ft)
Last Update:
4:26 am CDT Aug 19, 2026
Forecast Valid:
4am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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