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

68°F

20°C

Humidity 63%
Wind Speed SE 10 mph
Barometer 29.63 in (1002.5 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 23 Apr 9:53 pm CDT
Extended Forecast for

Green Lake WISimilar City Names

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a chance of showers. Low around 57. South wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: A 50 percent chance of showers, mainly before noon. Mostly cloudy, then gradually becoming sunny, with a high near 66. Southwest wind around 10 mph becoming northwest in the afternoon.

    High: 66 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. Northwest wind 5 to 10 mph.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 65. North wind 5 to 10 mph.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42. East wind 5 to 10 mph.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 65. East wind 5 to 10 mph.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 47. East wind 10 to 15 mph.

    Low: 47 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 64. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 64 °F

    Chance
    Showers then
    Showers and
    Breezy

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 47. Breezy. Chance of precipitation is 70%.

    Low: 47 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Tonight
Showers and thunderstorms before 4am, then a chance of showers. Low around 57. South wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 50 percent chance of showers, mainly before noon. Mostly cloudy, then gradually becoming sunny, with a high near 66. Southwest wind around 10 mph becoming northwest in the afternoon.
Friday Night
Mostly clear, with a low around 43. Northwest wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 65. North wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 42. East wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 65. East wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 47. East wind 10 to 15 mph.
Monday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 64. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 47. Breezy. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 60. Breezy.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 57.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Green Lake WISimilar City Names
 43.84°N 88.97°W (Elev. 801 ft)
Last Update:
10:42 pm CDT Apr 23, 2026
Forecast Valid:
10pm CDT Apr 23, 2026-6pm CDT Apr 30, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation