National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Overcast

7°F

-14°C

Humidity 73%
Wind Speed W 7 mph
Barometer 30.00 in (1018.8 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 1 Jan 8:53 am CST
Extended Forecast for

2 Miles NE Van Dyne WI

  • New Year's Day

    New Year's Day: Snow likely, mainly between 11am and 4pm. Cloudy, with a high near 13. Wind chill values between -10 and zero. West wind 5 to 10 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    High: 13 °F

    Chance Snow
    then Snow
    Likely

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 4. Wind chill values between -10 and zero. West wind 5 to 10 mph.

    Low: 4 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 15. Wind chill values between -10 and zero. West wind 5 to 10 mph.

    High: 15 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 9. Wind chill values between zero and 5. Northwest wind around 5 mph.

    Low: 9 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 20. West wind around 5 mph.

    High: 20 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 5. West wind around 5 mph.

    Low: 5 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 23. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 23 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 17. South wind around 5 mph.

    Low: 17 °F

    Chance Snow

  • Monday

    Monday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

Detailed Forecast

New Year's Day
Snow likely, mainly between 11am and 4pm. Cloudy, with a high near 13. Wind chill values between -10 and zero. West wind 5 to 10 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 4. Wind chill values between -10 and zero. West wind 5 to 10 mph.
Friday
Sunny, with a high near 15. Wind chill values between -10 and zero. West wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 9. Wind chill values between zero and 5. Northwest wind around 5 mph.
Saturday
Mostly cloudy, with a high near 20. West wind around 5 mph.
Saturday Night
Mostly clear, with a low around 5. West wind around 5 mph.
Sunday
Increasing clouds, with a high near 23. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 17. South wind around 5 mph.
Monday
Mostly cloudy, with a high near 32.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Mostly cloudy, with a high near 37.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
Partly sunny, with a high near 32.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Van Dyne WI
 43.89°N 88.51°W (Elev. 797 ft)
Last Update:
9:02 am CST Jan 1, 2026
Forecast Valid:
9am CST Jan 1, 2026-6pm CST Jan 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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