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

67°F

19°C

Humidity 87%
Wind Speed Calm
Barometer 29.94 in (1012.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 9 Jun 12:53 am CDT
Extended Forecast for

Oshkosh WI

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 4am, then a chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 63. Southeast wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm. Patchy fog between 9am and 10am. Otherwise, partly sunny, with a high near 84. Heat index values as high as 88. Light and variable wind becoming north around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms after 5am. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 65. Light and variable wind becoming east northeast around 6 mph after midnight.

    Low: 65 °F

    Patchy Fog
    then Slight
    Chance
    T-storms and
    Patchy Fog

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Partly sunny and hot, with a high near 92. Heat index values as high as 101. South wind 7 to 16 mph, with gusts as high as 28 mph.

    High: 92 °F

    Slight Chance
    T-storms then
    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 7pm, then showers and possibly a thunderstorm between 7pm and 1am. Low around 68. South southwest wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 68 °F

    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm after 1pm. High near 87. Chance of precipitation is 80%.

    High: 87 °F

    Mostly Sunny
    then Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am. Partly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 4am, then a chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 63. Southeast wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm. Patchy fog between 9am and 10am. Otherwise, partly sunny, with a high near 84. Heat index values as high as 88. Light and variable wind becoming north around 6 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A 10 percent chance of showers and thunderstorms after 5am. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 65. Light and variable wind becoming east northeast around 6 mph after midnight.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Partly sunny and hot, with a high near 92. Heat index values as high as 101. South wind 7 to 16 mph, with gusts as high as 28 mph.
Wednesday Night
A chance of showers and thunderstorms before 7pm, then showers and possibly a thunderstorm between 7pm and 1am. Low around 68. South southwest wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm after 1pm. High near 87. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am. Partly cloudy, with a low around 60. Chance of precipitation is 60%.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 79.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 56.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 75.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 54.
Monday
A 30 percent chance of showers. Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Oshkosh WI
 44.02°N 88.56°W (Elev. 758 ft)
Last Update:
1:21 am CDT Jun 9, 2026
Forecast Valid:
1am CDT Jun 9, 2026-6pm CDT Jun 15, 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