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Hazardous Weather Conditions
Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Fair
72°F
22°C
| Humidity | 83% |
| Wind Speed | Calm |
| Barometer | 30.06 in |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 14 Aug 8:45 pm CDT |
Extended Forecast for
Janesville WI
Tonight
Low: 61 °F
Mostly Cloudy
Friday
High: 87 °F
Mostly Sunny
Friday Night
Low: 70 °F
Partly Cloudy
then Chance
T-stormsSaturday
High: 90 °F
Chance
T-stormsSaturday Night
Low: 70 °F
Chance
T-stormsSunday
High: 84 °F
Slight Chance
T-stormsSunday Night
Low: 66 °F
Chance
T-stormsMonday
High: 82 °F
Chance
T-stormsMonday Night
Low: 67 °F
Chance
T-storms
Detailed Forecast
Tonight
Mostly cloudy, with a low around 61. Calm wind.
Friday
Mostly sunny, with a high near 87. South wind around 5 mph.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.
Saturday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 98. Southwest wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms. Increasing clouds, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. East wind 5 to 10 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. East wind 5 to 10 mph.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. South wind 5 to 10 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Wednesday
Partly sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 79.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Janesville WI
42.69°N 89.01°W (Elev. 863 ft)
42.69°N 89.01°W (Elev. 863 ft)
8:59 pm CDT Aug 14, 2025
9pm CDT Aug 14, 2025-6pm CDT Aug 21, 2025
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Hourly Weather Forecast
