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.

Fair

-4°F

-20°C

Humidity 75%
Wind Speed W 8 mph
Barometer 30.25 in (1027.6 mb)
Dewpoint -10°F (-23°C)
Visibility 10.00 mi
Wind Chill-19°F (-28°C)
Last update 29 Jan 2:53 am CST
Extended Forecast for

2 Miles SSE Green Lake WI

  • Overnight

    Overnight: Mostly clear, with a low around -6. Wind chill values between -15 and -20. West wind around 5 mph.

    Low: -6 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 11. Wind chill values between -5 and -15. Northwest wind 5 to 10 mph.

    High: 11 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -2. Wind chill values between -5 and -15. Northwest wind 5 to 10 mph.

    Low: -2 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 13. Wind chill values between -5 and -15. North wind 10 to 15 mph.

    High: 13 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 4. Northwest wind 10 to 15 mph.

    Low: 4 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 20. Northwest wind 5 to 10 mph.

    High: 20 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 2. West wind around 5 mph becoming south after midnight.

    Low: 2 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 23. South wind 5 to 10 mph.

    High: 23 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly clear, with a low around -6. Wind chill values between -15 and -20. West wind around 5 mph.
Thursday
Mostly sunny, with a high near 11. Wind chill values between -5 and -15. Northwest wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around -2. Wind chill values between -5 and -15. Northwest wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 13. Wind chill values between -5 and -15. North wind 10 to 15 mph.
Friday Night
Partly cloudy, with a low around 4. Northwest wind 10 to 15 mph.
Saturday
Sunny, with a high near 20. Northwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 2. West wind around 5 mph becoming south after midnight.
Sunday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 23. South wind 5 to 10 mph.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 15.
Monday
Mostly cloudy, with a high near 27.
Monday Night
Mostly cloudy, with a low around 10.
Tuesday
Partly sunny, with a high near 24.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 10.
Wednesday
A 30 percent chance of snow. Partly sunny, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Green Lake WI
 43.81°N 88.94°W (Elev. 850 ft)
Last Update:
3:07 am CST Jan 29, 2026
Forecast Valid:
3am CST Jan 29, 2026-6pm CST Feb 4, 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