Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

43°F

6°C

Humidity 57%
Wind Speed S 9 mph
Barometer 30.18 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 29 Mar 6:45 am CDT
Extended Forecast for

South Beloit IL

  • Today

    Today: Partly sunny, with a high near 64. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. South wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 59. South southwest wind 10 to 15 mph.  Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 73. Breezy, with a south southwest wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 70%.

    High: 73 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 34. Chance of precipitation is 40%.

    Low: 34 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers after 1pm.  Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers.  Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of rain and snow showers before 1pm, then a chance of rain showers.  Mostly cloudy, with a high near 42.

    High: 42 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Partly sunny, with a high near 64. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 45. South wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 76. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. South southwest wind 10 to 15 mph. Chance of precipitation is 50%.
Tuesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Breezy, with a south southwest wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 34. Chance of precipitation is 40%.
Wednesday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 46.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 30.
Thursday
A chance of rain and snow showers before 1pm, then a chance of rain showers. Mostly cloudy, with a high near 42.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 34.
Friday
Mostly cloudy, with a high near 54.
Friday Night
A chance of showers. Mostly cloudy, with a low around 41.
Saturday
Showers likely. Mostly cloudy, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
South Beloit IL
 42.5°N 89.05°W
4:56 am CDT Mar 29, 2026
7am CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database