Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

14°F

-10°C

Humidity 73%
Wind Speed W 12 mph
Barometer 29.76 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 17 Jan 2:35 am CST
Extended Forecast for

4 Miles WNW Beloit WI

  • Overnight

    Overnight: A 50 percent chance of snow.  Cloudy, with a low around 13. Wind chill values between zero and 5. West wind around 15 mph.

    Low: 13 °F

    Chance Snow

  • Saturday

    Saturday: Snow.  High near 18. Wind chill values between zero and 5. West wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 18 °F

    Snow

  • Saturday Night

    Saturday Night: Snow likely, mainly before 9pm.  Mostly cloudy, with a low around 5. Wind chill values between -10 and zero. West wind 10 to 15 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 5 °F

    Snow Likely
    then Mostly
    Cloudy

  • Sunday

    Sunday: Snow after noon.  High near 18. Wind chill values between -10 and zero. Southwest wind 10 to 15 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 18 °F

    Mostly Cloudy
    then Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight.  Mostly cloudy, with a low around -2. Blustery, with a southwest wind 10 to 15 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph.

    Low: -2 °F

    Blustery.
    Chance Snow
    then Mostly
    Cloudy

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near 6. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 6 °F

    Cold and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around -2. West wind 10 to 15 mph.

    Low: -2 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 19. Southwest wind around 10 mph.

    High: 19 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow.  Mostly cloudy, with a steady temperature around 17.

    Low: 17 °F

    Slight Chance
    Snow

Detailed Forecast

Overnight
A 50 percent chance of snow. Cloudy, with a low around 13. Wind chill values between zero and 5. West wind around 15 mph.
Saturday
Snow. High near 18. Wind chill values between zero and 5. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Snow likely, mainly before 9pm. Mostly cloudy, with a low around 5. Wind chill values between -10 and zero. West wind 10 to 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday
Snow after noon. High near 18. Wind chill values between -10 and zero. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around -2. Blustery, with a southwest wind 10 to 15 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph.
M.L.King Day
Partly sunny and cold, with a high near 6. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around -2. West wind 10 to 15 mph.
Tuesday
Increasing clouds, with a high near 19. Southwest wind around 10 mph.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a steady temperature around 17.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 25.
Wednesday Night
Mostly cloudy, with a low around 8.
Thursday
Partly sunny, with a high near 18.
Thursday Night
Mostly cloudy, with a low around 6.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 22.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Beloit WI
 42.54°N 89.1°W (Elev. 889 ft)
2:12 am CST Jan 17, 2026
2am CST Jan 17, 2026-6pm CST Jan 23, 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