Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62° N Lon: 89.04° W Elev: 801 ft.

Mostly Cloudy

48°F

9°C

Humidity 66%
Wind Speed E 9 mph
Barometer 30.18 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 22 May 4:15 am CDT
Detailed forecast for

Rock County

Early This Morning
Mostly cloudy. Chance of sprinkles. East winds 5 to 15 mph.
Today
Partly sunny. Chance of sprinkles in the morning. Highs in the mid 60s. East winds 10 to 15 mph.
Tonight
Mostly cloudy. Chance of sprinkles after midnight. Lows around 50. East winds 5 to 15 mph.
Saturday
Mostly cloudy. Chance of sprinkles in the morning. Highs in the lower 70s. East winds around 5 mph.
Saturday Night
Mostly cloudy. Chance of light rain showers through around midnight, then chance of light rain showers and slight chance of thunderstorms after midnight. Lows in the lower 50s. Southeast winds up to 5 mph shifting to the south after midnight. Chance of precipitation 40 percent.
Sunday
Mostly cloudy with a 30 percent chance of light rain showers in the morning, then mostly sunny in the afternoon. Highs in the upper 70s. West winds up to 10 mph.
Sunday Night
Mostly clear. Lows in the lower 50s.
Memorial Day
Sunny. Highs in the mid 80s.
Monday Night
Mostly clear. Lows in the upper 50s.
Tuesday
Mostly sunny. Highs in the mid 80s.
Tuesday Night
Partly cloudy. A 20 percent chance of light showers after midnight. Lows around 60.
Wednesday
Partly sunny. Chance of light showers in the morning, then chance of light showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 30 percent.
Wednesday Night
Partly cloudy. Slight chance of light showers and thunderstorms through around midnight, then slight chance of light showers after midnight. Lows around 60. Chance of precipitation 20 percent.
Thursday
Partly sunny. Chance of light showers and slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 30 percent.



Basemap Options
Click map to change the forecast location
Loading map...
431 AM CDT Fri May 22 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database