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.

Mostly Cloudy

79°F

26°C

Humidity 85%
Wind Speed Calm
Barometer 29.93 in (1011.8 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 1 Sep 10:53 pm CDT
Extended Forecast for

Oshkosh WI

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 5am. Mostly cloudy, with a low around 72. Calm wind becoming west southwest around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    T-storms
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms likely before 10am, then a slight chance of showers between 10am and 11am. Partly sunny, with a high near 83. 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: 83 °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

    Partly Cloudy
    then Slight
    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 1pm, then showers likely and possibly a thunderstorm after 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 79. East wind 5 to 7 mph becoming north northeast in the afternoon. Chance of precipitation is 60%.

    High: 79 °F

    Chance
    T-storms and
    Patchy Fog
    then Showers
    Likely

  • 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 69. East southeast wind around 7 mph. Chance of precipitation is 70%.

    Low: 69 °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. Partly sunny, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

  • Saturday

    Saturday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly after 5am. Mostly cloudy, with a low around 72. Calm wind becoming west southwest around 5 mph. 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. Partly sunny, with a high near 83. 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 chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 1pm, then showers likely and possibly a thunderstorm after 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 79. East wind 5 to 7 mph becoming north northeast in the afternoon. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. East southeast wind around 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. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 79.
Saturday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 78.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 64.
Labor Day
Partly sunny, with a high near 73.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 61.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Oshkosh WI
 44.02°N 88.53°W (Elev. 748 ft)
Last Update:
11:06 pm CDT Sep 1, 2026
Forecast Valid:
11pm CDT Sep 1, 2026-6pm CDT Sep 8, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation