National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Overcast

79°F

26°C

Humidity 74%
Wind Speed SE 12 mph
Barometer 30.02 in (1015.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 15 Aug 5:53 pm CDT
Extended Forecast for

Butte Des Morts WI

  • Tonight

    Tonight: A slight chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Patchy fog between 1am and 3am. Otherwise, mostly cloudy, with a low around 69. Southeast wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 30%.

    Low: 69 °F

    Mostly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 82. Heat index values as high as 85. West southwest wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60. North northwest wind 5 to 10 mph becoming light north after midnight.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 80. West northwest wind 3 to 8 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. Southwest wind 5 to 9 mph.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 76.

    High: 76 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Patchy fog between 1am and 3am. Otherwise, mostly cloudy, with a low around 69. Southeast wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Sunday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 82. Heat index values as high as 85. West southwest wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 60. North northwest wind 5 to 10 mph becoming light north after midnight.
Monday
Sunny, with a high near 80. West northwest wind 3 to 8 mph.
Monday Night
Partly cloudy, with a low around 64. Southwest wind 5 to 9 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Wednesday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 59.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 78.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Butte Des Morts WI
 44.11°N 88.65°W (Elev. 774 ft)
Last Update:
2:51 pm CDT Aug 15, 2026
Forecast Valid:
6pm CDT Aug 15, 2026-6pm CDT Aug 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation