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.

Overcast

55°F

13°C

Humidity 88%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 24 May 4:10 am CDT
Extended Forecast for

3 Miles ESE South Beloit IL

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Cloudy, with a low around 55. Calm wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers
    Likely

  • Sunday

    Sunday: Scattered showers and thunderstorms before 7am, then isolated showers between 7am and 8am. Cloudy through mid morning, then gradual clearing, with a high near 80. Northwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    High: 80 °F

    Scattered
    Showers then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56. West wind around 5 mph becoming calm.

    Low: 56 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. South wind around 5 mph, with gusts as high as 10 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Cloudy, with a low around 55. Calm wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Scattered showers and thunderstorms before 7am, then isolated showers between 7am and 8am. Cloudy through mid morning, then gradual clearing, with a high near 80. Northwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 56. West wind around 5 mph becoming calm.
Memorial Day
Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly clear, with a low around 60. South wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE South Beloit IL
 42.47°N 88.99°W
Last Update:
4:21 am CDT May 24, 2026
Forecast Valid:
4am CDT May 24, 2026-6pm CDT May 30, 2026
 
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