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.

Smoke Haze

79°F

26°C

Humidity 58%
Wind Speed W 3 mph
Barometer 30.00 in
Dewpoint 63°F (17°C)
Visibility 5.00 mi
Heat Index81°F (27°C)
Last update 13 Jul 6:45 pm CDT
Extended Forecast for

South Beloit IL

  • Tonight

    Tonight: Partly cloudy, with a low around 62. West wind around 5 mph becoming calm.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the morning.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. South wind around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Calm wind becoming south southwest around 5 mph in the morning. Winds could gust as high as 10 mph.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 79.

    High: 79 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers before 1am. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. West wind around 5 mph becoming calm.
Monday
Sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the morning.
Monday Night
Mostly clear, with a low around 65. South wind around 5 mph.
Tuesday
Sunny, with a high near 87. Calm wind becoming south southwest around 5 mph in the morning. Winds could gust as high as 10 mph.
Tuesday Night
Partly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
Thursday Night
A chance of showers before 1am. Mostly cloudy, with a low around 61.
Friday
Partly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Partly sunny, with a high near 81.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 64.
Sunday
A chance of showers. Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Beloit IL
 42.5°N 89.05°W
Last Update:
4:12 pm CDT Jul 13, 2025
Forecast Valid:
7pm CDT Jul 13, 2025-6pm CDT Jul 20, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation