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

73°F

23°C

Humidity 90%
Wind Speed SE 6 mph
Barometer 29.99 in (1014.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 15 Aug 10:53 pm CDT
Extended Forecast for

Oshkosh WI

  • Tonight

    Tonight: A slight 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 steady temperature around 73. South southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers between 1pm and 2pm. Partly sunny, with a high near 83. Heat index values as high as 86. West southwest wind 5 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. North northwest wind 5 to 10 mph becoming light north after midnight.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 82. West wind 3 to 8 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 64. Southwest wind 5 to 8 mph.

    Low: 64 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.

    High: 82 °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 61. Chance of precipitation is 60%.

    Low: 61 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 77.

    High: 77 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight 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 steady temperature around 73. South southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 20%.
Sunday
A slight chance of showers between 1pm and 2pm. Partly sunny, with a high near 83. Heat index values as high as 86. West southwest wind 5 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 61. North northwest wind 5 to 10 mph becoming light north after midnight.
Monday
Sunny, with a high near 82. West wind 3 to 8 mph.
Monday Night
Increasing clouds, with a low around 64. Southwest wind 5 to 8 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Wednesday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 57.
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 79.
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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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Oshkosh WI
 44.02°N 88.56°W (Elev. 758 ft)
Last Update:
8:41 pm CDT Aug 15, 2026
Forecast Valid:
11pm CDT Aug 15, 2026-6pm CDT Aug 22, 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