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Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Overcast
41°F
5°C
| Humidity | 70% |
| Wind Speed | W 10 mph |
| Barometer | 29.58 in |
| Dewpoint | 32°F (0°C) |
| Visibility | 10.00 mi |
| Wind Chill | 35°F (2°C) |
| Last update | 13 Jan 10:35 pm CST |
Extended Forecast for
South Beloit IL
Tonight
Low: 22 °F
Cloudy then
Chance Snow
and BlusteryWednesday
High: 24 °F⇓
Blustery.
Slight Chance
Snow then
Mostly SunnyWednesday Night

Low: 11 °F
Partly Cloudy
Thursday

High: 25 °F
Increasing
CloudsThursday Night

Low: 21 °F
Snow
Friday

High: 34 °F
Snow Likely
Friday Night

Low: 12 °F
Chance Snow
Saturday
High: 16 °F
Chance Snow
then Mostly
CloudySaturday Night

Low: 4 °F
Mostly Cloudy
Detailed Forecast
Tonight
A 30 percent chance of snow, mainly between 3am and 5am. Cloudy, with a low around 22. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday
A 20 percent chance of snow before 8am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 21 by 9am. Blustery, with a north northwest wind 15 to 25 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 11. North northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
Increasing clouds, with a high near 25. Northwest wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Snow. Low around 21. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Friday
Snow likely, mainly before noon. Mostly cloudy, with a high near 34. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 12.
Saturday
A chance of snow before noon. Mostly cloudy, with a high near 16.
Saturday Night
Mostly cloudy, with a low around 4.
Sunday
Partly sunny, with a high near 15.
Sunday Night
Mostly cloudy, with a low around 4.
M.L.King Day
Partly sunny, with a high near 14.
Monday Night
Partly cloudy, with a low around -2.
Tuesday
Mostly sunny, with a high near 13.
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
9:31 pm CST Jan 13, 2026
10pm CST Jan 13, 2026-6pm CST Jan 20, 2026


