Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Fair
63°F
17°C
| Humidity | 64% |
| Wind Speed | SW 3 mph |
| Barometer | 30.03 in |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Last update | 26 May 12:10 am CDT |
Extended Forecast for
South Beloit IL
Overnight
Low: 59 °F
Mostly Clear
Tuesday
High: 88 °F
Mostly Sunny
Tuesday Night
Low: 61 °F
Partly Cloudy
Wednesday
High: 84 °F
Partly Sunny
then Chance
T-stormsWednesday Night
Low: 55 °F
Chance
ShowersThursday
High: 77 °F
Sunny
Thursday Night
Low: 49 °F
Mostly Clear
Friday
High: 81 °F
Sunny
Friday Night
Low: 53 °F
Mostly Clear
Detailed Forecast
Overnight
Mostly clear, with a low around 59. South wind around 5 mph.
Tuesday
Mostly sunny, with a high near 88. South southwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 61. South southwest wind around 5 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the morning.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 55. East northeast wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 80.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
South Beloit IL
42.5°N 89.05°W
42.5°N 89.05°W
9:11 pm CDT May 25, 2026
12am CDT May 26, 2026-6pm CDT Jun 1, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
