Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

45°F

7°C

Humidity 100%
Wind Speed NE 10 mph
Barometer 29.72 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 20 May 11:50 pm CDT
Extended Forecast for

South Beloit IL

  • Overnight

    Overnight: Showers likely, mainly after 4am.  Cloudy, with a low around 48. East northeast wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely.  Cloudy, with a high near 52. North northwest wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 1am.  Cloudy, with a low around 45. North northwest wind around 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Showers
    Likely

  • Thursday

    Thursday: A 20 percent chance of showers.  Partly sunny, with a high near 60. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 60 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Showers likely, mainly after 4am. Cloudy, with a low around 48. East northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely. Cloudy, with a high near 52. North northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers likely, mainly before 1am. Cloudy, with a low around 45. North northwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 60. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 39. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Partly sunny, with a high near 63.
Sunday Night
Mostly cloudy, with a low around 43.
Memorial Day
Partly sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
A chance of showers. Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
South Beloit IL
 42.5°N 89.05°W
11:41 pm CDT May 20, 2025
12am CDT May 21, 2025-6pm CDT May 27, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database