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Hazardous Weather Conditions

Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Partly Cloudy

86°F

30°C

Humidity 72%
Wind Speed Calm
Barometer 29.95 in (1012.4 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 1 Sep 11:53 am CDT
Extended Forecast for

2 Miles W Winnebago WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 89. Heat index values as high as 94. West southwest wind 5 to 8 mph.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 3am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 69. Southwest wind around 6 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Cloudy
    then Chance
    T-storms and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 4pm. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 85. Heat index values as high as 88. Calm wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    T-storms and
    Areas Fog

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Widespread fog after 1am. Otherwise, partly cloudy, with a low around 67. Light east northeast wind. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers and
    Fog

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Widespread fog, mainly before 8am. Otherwise, partly sunny, with a high near 82. Calm wind becoming east around 6 mph in the morning. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers and
    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. Chance of precipitation is 70%.

    Low: 68 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 89. Heat index values as high as 94. West southwest wind 5 to 8 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 69. Southwest wind around 6 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 4pm. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 85. Heat index values as high as 88. Calm wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Widespread fog after 1am. Otherwise, partly cloudy, with a low around 67. Light east northeast wind. Chance of precipitation is 30%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Widespread fog, mainly before 8am. Otherwise, partly sunny, with a high near 82. Calm wind becoming east around 6 mph in the morning. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 84.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83.
Saturday Night
A 40 percent chance of showers. Partly cloudy, with a low around 66.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 82.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 62.
Labor Day
A 20 percent chance of showers. Partly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Winnebago WI
 44.06°N 88.56°W (Elev. 794 ft)
Last Update:
11:12 am CDT Sep 1, 2026
Forecast Valid:
12pm CDT Sep 1, 2026-6pm CDT Sep 7, 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