Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

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

A Few Clouds

75°F

24°C

Humidity 89%
Wind Speed S 9 mph
Barometer 29.76 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 10 Jun 6:45 am CDT
Detailed forecast for

Rock County

Early This Morning
Partly cloudy with a 30 percent chance of light showers and thunderstorms. South winds up to 5 mph.
Today
Warm and humid. Breezy. Mostly sunny in the morning, then slight chance of light showers and thunderstorms late in the morning. Mostly cloudy with showers and thunderstorms likely in the afternoon. Some thunderstorms may be severe in the afternoon. Highs in the upper 80s. Southwest winds 10 to 15 mph increasing to 15 to 25 mph in the afternoon. Chance of precipitation 70 percent. Highest heat index readings 95 to 98 in the late morning and early afternoon.
Tonight
Breezy. Mostly cloudy with showers and thunderstorms likely in the evening, then mostly cloudy with chance of showers and thunderstorms in the late evening and early morning. Partly cloudy early in the morning. Some thunderstorms may be severe in the evening. Lows in the upper 60s. Southwest winds 15 to 25 mph decreasing to 5 to 10 mph after midnight. Chance of precipitation 60 percent.
Thursday
Partly sunny in the morning, then chance of light showers and thunderstorms late in the morning. Cloudy with showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds up to 10 mph increasing to 15 to 20 mph in the afternoon. Chance of precipitation 90 percent.
Thursday Night
Cooler. Mostly cloudy with rain showers likely and chance of thunderstorms through around midnight, then mostly clear after midnight. Lows in the mid 50s. West winds 5 to 15 mph. Chance of precipitation 70 percent.
Friday
Sunny. Highs in the upper 70s. West winds 10 to 20 mph.
Friday Night
Mostly clear. Lows in the upper 50s.
Saturday
Mostly sunny. A 30 percent chance of light showers and thunderstorms in the afternoon. Highs in the lower 80s.
Saturday Night
Partly cloudy. Rain showers likely and chance of thunderstorms through around midnight, then chance of rain showers after midnight. Lows in the upper 50s. Chance of precipitation 70 percent.
Sunday
Mostly sunny. A 20 percent chance of light rain showers in the morning. Cooler. Highs in the lower 70s.
Sunday Night
Partly cloudy with a 20 percent chance of light rain showers. Lows in the lower 50s.
Monday
Partly sunny with a 20 percent chance of light rain showers. Highs in the lower 70s.
Monday Night
Partly cloudy. Slight chance of light rain showers and thunderstorms through around midnight, then slight chance of light rain showers after midnight. Lows in the lower 50s. Chance of precipitation 20 percent.
Tuesday
Partly sunny. Slight chance of light rain showers in the morning, then chance of light rain showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of precipitation 40 percent.



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430 AM CDT Wed Jun 10 2026
 
 

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