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

25°F

-4°C

Humidity 81%
Wind Speed W 7 mph
Barometer 29.75 in (1009.3 mb)
Dewpoint 20°F (-7°C)
Visibility 8.00 mi
Wind Chill17°F (-8°C)
Last update 6 Dec 3:53 am CST
Extended Forecast for

Green Lake WI

  • Today

    Today: Partly sunny, with a high near 21. Northwest wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 21 °F

    Partly Sunny

  • Tonight

    Tonight: Snow, mainly before 5am. Steady temperature around 17. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 17 °F

    Snow Likely
    then Snow

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 17. Wind chill values between zero and 5. North wind 5 to 10 mph.

    High: 17 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -2. North wind around 5 mph becoming calm in the evening.

    Low: -2 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 21. Light south wind increasing to 5 to 10 mph in the morning.

    High: 21 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Snow likely, mainly after midnight. Mostly cloudy, with a temperature falling to near 15 by 8pm, then rising to around 23 during the remainder of the night. South wind 10 to 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 15 °F⇑

    Snow Likely

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after noon. Cloudy, with a high near 32. Southwest wind 10 to 15 mph.

    High: 32 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Rain and snow. Low around 24. Blustery, with a south wind 10 to 20 mph becoming northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 24 °F

    Rain/Snow and
    Blustery

  • Wednesday

    Wednesday: A 50 percent chance of snow. Mostly cloudy, with a high near 29.

    High: 29 °F

    Chance Snow

Detailed Forecast

Today
Partly sunny, with a high near 21. Northwest wind 5 to 10 mph becoming light and variable in the afternoon.
Tonight
Snow, mainly before 5am. Steady temperature around 17. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 17. Wind chill values between zero and 5. North wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around -2. North wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 21. Light south wind increasing to 5 to 10 mph in the morning.
Monday Night
Snow likely, mainly after midnight. Mostly cloudy, with a temperature falling to near 15 by 8pm, then rising to around 23 during the remainder of the night. South wind 10 to 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday
A 30 percent chance of snow, mainly after noon. Cloudy, with a high near 32. Southwest wind 10 to 15 mph.
Tuesday Night
Rain and snow. Low around 24. Blustery, with a south wind 10 to 20 mph becoming northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A 50 percent chance of snow. Mostly cloudy, with a high near 29.
Wednesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 7.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 19.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 4.
Friday
Partly sunny, with a high near 15.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Green Lake WI
 43.84°N 88.97°W (Elev. 801 ft)
Last Update:
3:57 am CST Dec 6, 2025
Forecast Valid:
4am CST Dec 6, 2025-6pm CST Dec 12, 2025
 
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