Hazardous Weather Conditions
Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Overcast
77°F
25°C
| Humidity | 89% |
| Wind Speed | S 7 mph |
| Barometer | 30.02 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 15 Aug 3:45 pm CDT |
Extended Forecast for
Roscoe IL
This Afternoon
High: 80 °F
Slight Chance
ShowersTonight
Low: 71 °F
Slight Chance
T-storms then
Showers
LikelySunday
High: 84 °F
Slight Chance
T-storms then
Partly SunnySunday Night
Low: 60 °F
Partly Cloudy
Monday
High: 80 °F
Sunny
Monday Night
Low: 59 °F
Partly Cloudy
Tuesday
High: 81 °F
Partly Sunny
then Chance
T-stormsTuesday Night
Low: 62 °F
Showers
Wednesday
High: 77 °F
Chance
Showers
Detailed Forecast
This Afternoon
A 20 percent chance of showers. Partly sunny, with a high near 80. South wind around 5 mph.
Tonight
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 20 percent chance of showers and thunderstorms before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 84. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 60. Northwest wind 5 to 10 mph.
Monday
Sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81.
Tuesday Night
Showers likely and possibly a thunderstorm, then showers after 1am. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers before 1pm. Mostly cloudy, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 78.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Roscoe IL
42.41°N 89.02°W
42.41°N 89.02°W
2:51 pm CDT Aug 15, 2026
4pm CDT Aug 15, 2026-6pm CDT Aug 22, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
