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

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

0°F

-18°C

Humidity 71%
Wind Speed W 5 mph
Barometer 30.29 in
Dewpoint -8°F (-22°C)
Visibility 10.00 mi
Wind Chill-11°F (-24°C)
Last update 20 Jan 1:55 am CST
Extended Forecast for

6 Miles N Milton WI

  • Overnight

    Overnight: Clear, with a low around -5. Wind chill values between -15 and -20. West wind 5 to 10 mph.

    Low: -5 °F

    Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 15. Wind chill values between -10 and -20. West wind 5 to 10 mph.

    High: 15 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow, mainly after 10pm. The snow could be heavy at times.  Low around 12. South wind around 5 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 12 °F

    Heavy Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow, mainly before noon.  Mostly cloudy, with a high near 24. West wind 5 to 15 mph.

    High: 24 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow before midnight.  Mostly cloudy, with a low around 5. West wind around 15 mph, with gusts as high as 30 mph.

    Low: 5 °F

    Chance Snow
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 15. West wind 10 to 15 mph.

    High: 15 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -14. Northwest wind around 10 mph.

    Low: -14 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -4. Northwest wind 5 to 10 mph.

    High: -4 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -17.

    Low: -17 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around -5. Wind chill values between -15 and -20. West wind 5 to 10 mph.
Tuesday
Increasing clouds, with a high near 15. Wind chill values between -10 and -20. West wind 5 to 10 mph.
Tuesday Night
Snow, mainly after 10pm. The snow could be heavy at times. Low around 12. South wind around 5 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Wednesday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 24. West wind 5 to 15 mph.
Wednesday Night
A 50 percent chance of snow before midnight. Mostly cloudy, with a low around 5. West wind around 15 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a high near 15. West wind 10 to 15 mph.
Thursday Night
Partly cloudy, with a low around -14. Northwest wind around 10 mph.
Friday
Mostly sunny and cold, with a high near -4. Northwest wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around -17.
Saturday
A 20 percent chance of snow after noon. Partly sunny and cold, with a high near 0.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around -9.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 11.
Sunday Night
Partly cloudy, with a low around -6.
Monday
Mostly sunny, with a high near 13.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles N Milton WI
 42.86°N 88.94°W (Elev. 797 ft)
1:42 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