National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Fair

60°F

16°C

Humidity 78%
Wind Speed SW 5 mph
Barometer 30.09 in (1018.3 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 24 Aug 10:53 pm CDT
Extended Forecast for

Green Lake WISimilar City Names

  • Tonight

    Tonight: Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 55. Calm wind becoming south around 5 mph.

    Low: 55 °F

    Patchy Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79. Southwest wind 5 to 10 mph.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly between 1am and 4am. Mostly cloudy, with a low around 63. South wind around 10 mph.

    Low: 63 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. West wind 10 to 15 mph.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Northwest wind 5 to 10 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. North wind around 5 mph.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. Calm wind becoming east around 5 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 55. Calm wind becoming south around 5 mph.
Tuesday
Mostly sunny, with a high near 79. Southwest wind 5 to 10 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly between 1am and 4am. Mostly cloudy, with a low around 63. South wind around 10 mph.
Wednesday
Mostly sunny, with a high near 79. West wind 10 to 15 mph.
Wednesday Night
Mostly clear, with a low around 59. Northwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 79. North wind around 5 mph.
Thursday Night
Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 80. Calm wind becoming east around 5 mph.
Friday Night
Partly cloudy, with a low around 59.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Monday
A 30 percent chance of showers. Mostly cloudy, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Green Lake WISimilar City Names
 43.84°N 88.97°W (Elev. 801 ft)
Last Update:
11:46 pm CDT Aug 24, 2026
Forecast Valid:
11pm CDT Aug 24, 2026-6pm CDT Aug 31, 2026
 
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Additional Resources

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