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.

Overcast

23°F

-5°C

Humidity 68%
Wind Speed NW 10 G 21 mph
Barometer 30.16 in (1023.1 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 21 Feb 10:53 pm CST
Extended Forecast for

2 Miles SE Green Lake WI

  • Tonight

    Tonight: Isolated snow showers before 3am, then scattered flurries after 3am. Cloudy, with a low around 17. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 17 °F

    Isolated Snow
    Showers

  • Sunday

    Sunday: Scattered flurries before 4pm. Cloudy, with a high near 24. Wind chill values between zero and 10. Blustery, with a northwest wind around 20 mph, with gusts as high as 30 mph.

    High: 24 °F

    Scattered
    Flurries and
    Blustery

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 10. Wind chill values between -5 and 5. Blustery, with a north wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 10 °F

    Decreasing
    Clouds and
    Blustery

  • Monday

    Monday: Sunny, with a high near 24. Wind chill values between -5 and 5. North wind 10 to 15 mph decreasing to 5 to 10 mph in the afternoon.

    High: 24 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 15. Northwest wind 5 to 15 mph becoming south in the evening.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Snow likely, mainly after noon. Mostly cloudy, with a high near 36. South wind around 15 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 36 °F

    Snow Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 19. Southwest wind around 10 mph becoming west in the evening.

    Low: 19 °F

    Chance Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 32. West wind around 10 mph.

    High: 32 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow. Partly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow

Detailed Forecast

Tonight
Isolated snow showers before 3am, then scattered flurries after 3am. Cloudy, with a low around 17. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday
Scattered flurries before 4pm. Cloudy, with a high near 24. Wind chill values between zero and 10. Blustery, with a northwest wind around 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 10. Wind chill values between -5 and 5. Blustery, with a north wind 15 to 20 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 24. Wind chill values between -5 and 5. North wind 10 to 15 mph decreasing to 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 15. Northwest wind 5 to 15 mph becoming south in the evening.
Tuesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 36. South wind around 15 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 19. Southwest wind around 10 mph becoming west in the evening.
Wednesday
A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 32. West wind around 10 mph.
Wednesday Night
A 40 percent chance of snow. Partly cloudy, with a low around 14.
Thursday
A 30 percent chance of snow, mainly before noon. Mostly sunny, with a high near 34.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 25.
Saturday
A slight chance of rain and snow. Mostly sunny, with a high near 38. Chance of precipitation is 20%.
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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:
11:32 pm CST Feb 21, 2026
Forecast Valid:
11pm CST Feb 21, 2026-6pm CST Feb 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation