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.

Thunderstorm in Vicinity Light Rain

68°F

20°C

Humidity 100%
Wind Speed S 10 mph
Barometer 29.93 in (1012.3 mb)
Dewpoint 68°F (20°C)
Visibility 7.00 mi
Last update 4 Sep 6:53 am CDT
Extended Forecast for

Oshkosh WI

Flood Advisory until September 4, 10:45am
Click here for hazard details and duration
...
  •  
    Flood Advisory until September 4, 10:45am

    NOW until 10:45am Fri

    Flood Advisory

  • Today

    High: 86 °F

    Scattered
    T-storms then
    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 11pm. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 69. East northeast wind 3 to 7 mph.

    Low: 69 °F

    Slight Chance
    T-storms then
    Patchy Fog

  • Saturday

    Saturday: Mostly cloudy, with a high near 78. Northeast wind 6 to 9 mph.

    High: 78 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64. East wind 3 to 8 mph.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 78. Calm wind becoming east southeast 5 to 7 mph in the morning.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 86. Heat index values as high as 94. South southwest wind 6 to 8 mph. Chance of precipitation is 40%.
Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 69. East northeast wind 3 to 7 mph.
Saturday
Mostly cloudy, with a high near 78. Northeast wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 64. East wind 3 to 8 mph.
Sunday
Mostly sunny, with a high near 78. Calm wind becoming east southeast 5 to 7 mph in the morning.
Sunday Night
Partly cloudy, with a low around 64.
Labor Day
Mostly sunny, with a high near 77.
Monday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 66.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 81.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Oshkosh WI
 44.02°N 88.53°W (Elev. 748 ft)
Last Update:
7:06 am CDT Sep 4, 2026
Forecast Valid:
7am CDT Sep 4, 2026-6pm CDT Sep 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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