Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

19°F

-7°C

Humidity 86%
Wind Speed S 3 mph
Barometer 30.16 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 9 Feb 7:45 am CST
Extended Forecast for

South Beloit IL

  • Today

    Today: Increasing clouds, with a high near 38. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 38 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 35. South wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 40. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 40 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 22 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36. Northwest wind 5 to 10 mph.

    High: 36 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon.  Mostly cloudy, with a high near 36.

    High: 36 °F

    Cloudy then
    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 38. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Mostly cloudy, with a steady temperature around 35. South wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Partly sunny, with a high near 40. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 22. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 36. Northwest wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Partly sunny, with a high near 40.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
A chance of rain and snow. Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 40.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
South Beloit IL
 42.5°N 89.05°W
5:36 am CST Feb 9, 2026
7am CST Feb 9, 2026-6pm CST Feb 15, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database