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

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

32°F

0°C

Humidity 93%
Wind Speed NW 9 mph
Barometer 29.97 in
Dewpoint 30°F (-1°C)
Visibility 7.00 mi
Wind Chill24°F (-4°C)
Last update 3 Dec 12:45 pm CST
Extended Forecast for

South Beloit IL

  • This Afternoon

    This Afternoon: Patchy flurries and freezing rain. Mostly cloudy, with a high near 31. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 31 °F

    Patchy Wintry
    Mix

  • Tonight

    Tonight: Intermittent flurries before 9pm. Partly cloudy, with a low around -3. Wind chill values as low as -11. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: -3 °F

    Intermittent
    Flurries

  • Thursday

    Thursday: Sunny and cold, with a high near 10. Wind chill values as low as -13. North northwest wind around 5 mph becoming calm in the morning.

    High: 10 °F

    Cold

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -4. Light south southwest wind increasing to 5 to 10 mph after midnight. Winds could gust as high as 15 mph.

    Low: -4 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 24. South southwest wind around 10 mph, with gusts as high as 15 mph.

    High: 24 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 27.

    High: 27 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow after midnight. Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Partly sunny, with a high near 20.

    High: 20 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Patchy flurries and freezing rain. Mostly cloudy, with a high near 31. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tonight
Intermittent flurries before 9pm. Partly cloudy, with a low around -3. Wind chill values as low as -11. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny and cold, with a high near 10. Wind chill values as low as -13. North northwest wind around 5 mph becoming calm in the morning.
Thursday Night
Partly cloudy, with a low around -4. Light south southwest wind increasing to 5 to 10 mph after midnight. Winds could gust as high as 15 mph.
Friday
Partly sunny, with a high near 24. South southwest wind around 10 mph, with gusts as high as 15 mph.
Friday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 16.
Saturday
Mostly cloudy, with a high near 27.
Saturday Night
A chance of snow after midnight. Mostly cloudy, with a low around 8.
Sunday
Partly sunny, with a high near 20.
Sunday Night
Mostly cloudy, with a low around -3.
Monday
Partly sunny, with a high near 21.
Monday Night
A chance of snow. Mostly cloudy, with a low around 11.
Tuesday
Mostly cloudy, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Beloit IL
 42.47°N 89.02°W
Last Update:
1:51 pm CST Dec 3, 2025
Forecast Valid:
2pm CST Dec 3, 2025-6pm CST Dec 9, 2025
 
Forecast Discussion
 
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Additional Resources

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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