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.

Partly Cloudy

32°F

0°C

Humidity 75%
Wind Speed NW 13 G 17 mph
Barometer 29.92 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 10 Jan 12:45 pm CST
Extended Forecast for

South Beloit IL

  • This Afternoon

    This Afternoon: Scattered snow showers, mainly after 5pm. Mostly sunny early, then becoming cloudy, with a high near 35. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 35 °F

    Scattered
    Snow Showers

  • Tonight

    Tonight: Scattered snow showers. Cloudy, with a low around 21. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    Low: 21 °F

    Scattered
    Snow Showers
    and Blustery

  • Sunday

    Sunday: Scattered flurries before 9am. Partly sunny, with a high near 30. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 30 °F

    Scattered
    Flurries

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 24. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41. West southwest wind around 10 mph, with gusts as high as 15 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain. Partly sunny, with a high near 46.

    High: 46 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Scattered snow showers, mainly after 5pm. Mostly sunny early, then becoming cloudy, with a high near 35. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tonight
Scattered snow showers. Cloudy, with a low around 21. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Sunday
Scattered flurries before 9am. Partly sunny, with a high near 30. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 24. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 41. West southwest wind around 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Mostly cloudy, with a high near 30.
Wednesday Night
Partly cloudy, with a low around 14.
Thursday
Partly sunny, with a high near 29.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 24.
Friday
A chance of snow. Mostly cloudy, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Beloit IL
 42.47°N 89.02°W
Last Update:
1:17 pm CST Jan 10, 2026
Forecast Valid:
1pm CST Jan 10, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation