Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Hazardous Weather Conditions

Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

Fair

-5°F

-21°C

Humidity 72%
Wind Speed W 5 mph
Barometer 30.22 in (1026.9 mb)
Dewpoint -12°F (-24°C)
Visibility 10.00 mi
Wind Chill-16°F (-27°C)
Last update 20 Jan 1:53 am CST
Extended Forecast for

2 Miles NE Van Dyne WI

  • Overnight

    Overnight: Clear, with a low around -6. Wind chill values between -20 and -25. West wind around 10 mph.

    Low: -6 °F

    Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 12. Wind chill values between -10 and -20. West wind 10 to 15 mph.

    High: 12 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow, mainly before 5am.  Low around 10. Wind chill values between zero and 5. Southwest wind 5 to 10 mph becoming northwest after midnight.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 10 °F

    Snow

  • Wednesday

    Wednesday: A slight chance of snow before noon, then a slight chance of snow showers after noon.  Mostly cloudy, with a high near 22. Wind chill values between zero and 10. North wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon.  Chance of precipitation is 20%.

    High: 22 °F

    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow showers before midnight.  Mostly cloudy, with a low around 4. West wind 10 to 15 mph.

    Low: 4 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 12. West wind around 15 mph.

    High: 12 °F

    Mostly Sunny

  • Thursday Night

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

    Low: -15 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and cold, with a high near -5. Northwest wind 10 to 15 mph.

    High: -5 °F

    Cold

  • Friday Night

    Friday Night: Mostly clear, with a low around -15.

    Low: -15 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around -6. Wind chill values between -20 and -25. West wind around 10 mph.
Tuesday
Increasing clouds, with a high near 12. Wind chill values between -10 and -20. West wind 10 to 15 mph.
Tuesday Night
Snow, mainly before 5am. Low around 10. Wind chill values between zero and 5. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Wednesday
A slight chance of snow before noon, then a slight chance of snow showers after noon. Mostly cloudy, with a high near 22. Wind chill values between zero and 10. North wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 4. West wind 10 to 15 mph.
Thursday
Mostly sunny, with a high near 12. West wind around 15 mph.
Thursday Night
Partly cloudy, with a low around -15. Northwest wind 10 to 15 mph.
Friday
Sunny and cold, with a high near -5. Northwest wind 10 to 15 mph.
Friday Night
Mostly clear, with a low around -15.
Saturday
Mostly sunny and cold, with a high near 1.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around -8.
Sunday
A 20 percent chance of snow. Mostly sunny and cold, with a high near 10.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -5.
Monday
Mostly sunny, with a high near 11.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Van Dyne WI
 43.89°N 88.51°W (Elev. 797 ft)
2:17 am CST Jan 20, 2026
2am CST Jan 20, 2026-6pm CST Jan 26, 2026
 
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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