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

42°F

6°C

Humidity 60%
Wind Speed W 16 G 25 mph
Barometer 30.10 in (1019.5 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 9 Apr 9:53 am CDT
Extended Forecast for

2 Miles SSE Green Lake WI

  • Today

    Today: Mostly sunny, with a high near 53. West wind 10 to 15 mph.

    High: 53 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely, mainly between 9pm and 4am. Cloudy, with a low around 37. Northwest wind around 5 mph becoming northeast after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Showers
    Likely

  • Friday

    Friday: A slight chance of showers between 1pm and 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 47 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. Northwest wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers after 4pm. Mostly sunny, with a high near 56. South wind 5 to 15 mph.

    High: 56 °F

    Sunny then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 44. Southeast wind around 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 60. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely and
    Breezy

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 53. West wind 10 to 15 mph.
Tonight
Showers likely, mainly between 9pm and 4am. Cloudy, with a low around 37. Northwest wind around 5 mph becoming northeast after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A slight chance of showers between 1pm and 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 32. Northwest wind around 5 mph becoming calm in the evening.
Saturday
A 30 percent chance of showers after 4pm. Mostly sunny, with a high near 56. South wind 5 to 15 mph.
Saturday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 44. Southeast wind around 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 60. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 40%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Green Lake WI
 43.81°N 88.94°W (Elev. 850 ft)
Last Update:
8:31 am CDT Apr 9, 2026
Forecast Valid:
10am CDT Apr 9, 2026-6pm CDT Apr 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