Hazardous Weather Conditions
Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Mostly Cloudy
12°F
-11°C
| Humidity | 67% |
| Wind Speed | SW 13 mph |
| Barometer | 29.89 in |
| Dewpoint | 3°F (-16°C) |
| Visibility | 10.00 mi |
| Wind Chill | -3°F (-19°C) |
| Last update | 18 Jan 1:45 pm CST |
Extended Forecast for
South Beloit IL
Cold Weather Advisory January 19, 03:00am until January 19, 12:00pm
This Afternoon

High: 16 °F
Snow
Tonight
Low: -2 °F
Snow then
Isolated Snow
Showers and
BlusteryM.L.King Day

High: 4 °F
Cold and
BlusteryMonday Night

Low: -3 °F
Partly Cloudy
Tuesday

High: 17 °F
Mostly Sunny
Tuesday Night
Low: 9 °F
Chance Snow
then Snow
LikelyWednesday

High: 24 °F
Chance Snow
Wednesday Night

Low: 4 °F
Mostly Cloudy
Thursday

High: 14 °F
Mostly Sunny
Detailed Forecast
This Afternoon
A chance of flurries before 3pm, then snow, mainly after 4pm. High near 16. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before 10pm, then isolated snow showers after midnight. Low around -2. Wind chill values as low as -25. Blustery, with a west southwest wind 10 to 15 mph becoming west northwest 20 to 25 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
M.L.King Day
Mostly sunny and cold, with a high near 4. Wind chill values as low as -25. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Monday Night
Partly cloudy, with a low around -3. Wind chill values as low as -14. West wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 17. West wind 5 to 10 mph becoming south southwest in the afternoon.
Tuesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 9. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 24.
Wednesday Night
Mostly cloudy, with a low around 4.
Thursday
Mostly sunny, with a high near 14.
Thursday Night
Mostly cloudy, with a low around 1.
Friday
Partly sunny, with a high near 14.
Friday Night
Partly cloudy, with a low around -6.
Saturday
Partly sunny and cold, with a high near 5.
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
2:21 pm CST Jan 18, 2026
2pm CST Jan 18, 2026-6pm CST Jan 24, 2026



