Hazardous Weather Conditions
Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Overcast
66°F
19°C
| Humidity | 43% |
| Wind Speed | E 17 G 25 mph |
| Barometer | 30.02 in |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 22 May 4:45 pm CDT |
Extended Forecast for
South Beloit IL
Tonight

Low: 54 °F
Mostly Cloudy
Saturday

High: 74 °F
Partly Sunny
Saturday Night
Low: 55 °F
Slight Chance
T-storms then
Chance
ShowersSunday

High: 79 °F
Slight Chance
ShowersSunday Night

Low: 54 °F
Mostly Clear
Memorial Day

High: 85 °F
Sunny
Monday Night

Low: 58 °F
Mostly Clear
Tuesday

High: 87 °F
Sunny
Tuesday Night

Low: 60 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 54. East wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 74. East northeast wind around 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 55. East wind around 5 mph becoming calm after midnight.
Sunday
A 20 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 79. Calm wind becoming west northwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 54. West northwest wind around 5 mph becoming calm.
Memorial Day
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 82.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
South Beloit IL
42.5°N 89.05°W
42.5°N 89.05°W
2:46 pm CDT May 22, 2026
5pm CDT May 22, 2026-6pm CDT May 29, 2026



