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.

Mostly Cloudy

47°F

8°C

Humidity 61%
Wind Speed N 13 mph
Barometer 30.27 in (1025.7 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 10 Apr 12:53 pm CDT
Extended Forecast for

2 Miles SE Green Lake WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 49. Northwest wind around 10 mph.

    High: 49 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 32. Northwest wind around 5 mph becoming south in the evening.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 52. South wind 5 to 15 mph.

    High: 52 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Showers likely, with thunderstorms also possible after 10pm. Cloudy, with a low around 43. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 70 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A 50 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 59. Windy, with a southwest wind 15 to 25 mph, with gusts as high as 30 mph.

    Low: 59 °F

    Chance
    Showers and
    Windy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Southwest wind 10 to 15 mph.

    High: 76 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. South wind 10 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.

    High: 77 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 49. Northwest wind around 10 mph.
Tonight
Mostly clear, with a low around 32. Northwest wind around 5 mph becoming south in the evening.
Saturday
Increasing clouds, with a high near 52. South wind 5 to 15 mph.
Saturday Night
Showers likely, with thunderstorms also possible after 10pm. Cloudy, with a low around 43. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 50 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 59. Windy, with a southwest wind 15 to 25 mph, with gusts as high as 30 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Southwest wind 10 to 15 mph.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. South wind 10 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 68.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Green Lake WI
 43.81°N 88.94°W (Elev. 850 ft)
Last Update:
1:21 pm CDT Apr 10, 2026
Forecast Valid:
1pm CDT Apr 10, 2026-6pm CDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation