Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Thunderstorm Heavy Rain Fog/Mist

72°F

22°C

Humidity 91%
Wind Speed S 15 G 30 mph
Barometer 29.92 in (1011.7 mb)
Dewpoint 69°F (21°C)
Visibility 1.25 mi
Last update 2 Sep 2:53 am CDT
Extended Forecast for

4 Miles NE Van Dyne WI

Severe T-storm Watch until September 2, 06:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until September 2, 06:00am

    NOW until 6:00am Wed

    Severe T-storm Watch

  • Overnight

    Low: 72 °F

    Severe
    Thunderstorms

  • Wednesday

    Wednesday: Showers and thunderstorms likely before 10am, then a slight chance of showers between 10am and 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 84. Heat index values as high as 89. North northeast wind 5 to 7 mph becoming south in the afternoon.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    T-storms
    Likely then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms after 5am.  Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 69. East wind 3 to 5 mph.

    Low: 69 °F

    Mostly Clear
    then Slight
    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly between 7am and 4pm.  Patchy fog before 8am.  Otherwise, mostly cloudy, with a high near 81. Heat index values as high as 84. East wind 5 to 7 mph.

    High: 81 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 68. East southeast wind 5 to 7 mph.  Chance of precipitation is 70%.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm.  Mostly cloudy, with a high near 83. Chance of precipitation is 50%.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 79.

    High: 79 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly after 5am. Some of the storms could be severe. Mostly cloudy, with a low around 72. Light southwest wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms likely before 10am, then a slight chance of showers between 10am and 11am. Mostly cloudy, then gradually becoming sunny, with a high near 84. Heat index values as high as 89. North northeast wind 5 to 7 mph becoming south in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 10 percent chance of showers and thunderstorms after 5am. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 69. East wind 3 to 5 mph.
Thursday
A 50 percent chance of showers and thunderstorms, mainly between 7am and 4pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 81. Heat index values as high as 84. East wind 5 to 7 mph.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. East southeast wind 5 to 7 mph. Chance of precipitation is 70%.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 83. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 79.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 79.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Labor Day
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 62.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Van Dyne WI
 43.93°N 88.48°W (Elev. 748 ft)
2:47 am CDT Sep 2, 2026
3am CDT Sep 2, 2026-6pm CDT Sep 8, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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