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

38°F

3°C

Humidity 52%
Wind Speed W 7 G 17 mph
Barometer 29.95 in (1015.0 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 18 Apr 7:53 pm CDT
Extended Forecast for

2 Miles SE Green Lake WI

  • Tonight

    Tonight: Mostly clear, with a low around 30. West wind 10 to 15 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of snow showers before 9am, then a chance of sprinkles and flurries between 9am and 10am. Mostly sunny, with a high near 46. Northwest wind 10 to 15 mph. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Sprinkles/Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 26. Northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 51. South wind 5 to 10 mph.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. South wind 10 to 15 mph.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 69. South wind 5 to 10 mph becoming west in the afternoon.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39. North wind around 5 mph becoming east in the evening.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 69. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 30. West wind 10 to 15 mph.
Sunday
A slight chance of snow showers before 9am, then a chance of sprinkles and flurries between 9am and 10am. Mostly sunny, with a high near 46. Northwest wind 10 to 15 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 26. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 51. South wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 40. South wind 10 to 15 mph.
Tuesday
Sunny, with a high near 69. South wind 5 to 10 mph becoming west in the afternoon.
Tuesday Night
Mostly clear, with a low around 39. North wind around 5 mph becoming east in the evening.
Wednesday
Sunny, with a high near 69. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 76.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 68.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 41.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Green Lake WI
 43.81°N 88.94°W (Elev. 850 ft)
Last Update:
4:46 pm CDT Apr 18, 2026
Forecast Valid:
8pm CDT Apr 18, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation