Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Fair
61°F
16°C
| Humidity | 68% |
| Wind Speed | S 5 mph |
| Barometer | 30.05 in |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Last update | 26 May 5:45 am CDT |
Extended Forecast for
South Beloit IL
Today

High: 87 °F
Mostly Sunny
Tonight

Low: 61 °F
Partly Cloudy
Wednesday
High: 85 °F
Mostly Sunny
then Slight
Chance
T-stormsWednesday Night
Low: 54 °F
Slight Chance
T-storms then
Mostly ClearThursday

High: 76 °F
Sunny
Thursday Night

Low: 48 °F
Mostly Clear
Friday

High: 82 °F
Sunny
Friday Night

Low: 53 °F
Mostly Clear
Saturday

High: 78 °F
Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 87. South southwest wind around 5 mph, with gusts as high as 10 mph.
Tonight
Partly cloudy, with a low around 61. South southwest wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 85. Calm wind becoming north northeast around 5 mph in the morning. Winds could gust as high as 10 mph.
Wednesday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 54. East northeast wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 76. East northeast wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 80.
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
4:36 am CDT May 26, 2026
6am CDT May 26, 2026-6pm CDT Jun 1, 2026


