


Hazardous Weather Conditions
Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Partly Cloudy
29°C
84°F
Humidity | 40% |
Wind Speed | SW 15 km/h |
Barometer | 29.84 in |
Dewpoint | 14°C (57°F) |
Visibility | 16 km |
Heat Index | 28°C (83°F) |
Last update | 20 Jun 5:45 pm CDT |
Extended Forecast for
5 Miles SSW Janesville WI
Heat Advisory June 21, 12:00pm until June 23, 07:00pm
Tonight
Low: 23 °C
Partly Cloudy
Saturday
High: 34 °C
Hot and Windy
Saturday Night
Low: 24 °C
Mostly Clear
and Breezy
then ClearSunday
High: 34 °C
Hot
Sunday Night
Low: 23 °C
Clear
Monday
High: 34 °C
Sunny then
Slight Chance
ShowersMonday Night
Low: 21 °C
Chance
T-stormsTuesday
High: 31 °C
Showers
LikelyTuesday Night
Low: 18 °C
Chance
T-storms then
Showers
Likely
Detailed Forecast
Tonight
Partly cloudy, with a low around 23. South wind 20 to 25 km/h, with gusts as high as 40 km/h.
Saturday
Sunny and hot, with a high near 34. Heat index values as high as 39. Windy, with a southwest wind 25 to 30 km/h increasing to 35 to 40 km/h in the afternoon. Winds could gust as high as 65 km/h.
Saturday Night
Mostly clear, with a low around 24. Breezy, with a southwest wind 30 to 35 km/h decreasing to 25 to 30 km/h after midnight. Winds could gust as high as 55 km/h.
Sunday
Sunny and hot, with a high near 34. Heat index values as high as 39. Southwest wind 25 to 30 km/h, with gusts as high as 45 km/h.
Sunday Night
Clear, with a low around 23. Southwest wind 20 to 30 km/h, with gusts as high as 40 km/h.
Monday
A 20 percent chance of showers after 1pm. Sunny and hot, with a high near 34. Southwest wind 20 to 25 km/h, with gusts as high as 40 km/h.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 21. Southwest wind 20 to 25 km/h decreasing to 10 to 15 km/h after midnight.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 31. Northwest wind 10 to 15 km/h becoming southeast in the afternoon. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 31. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 19.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 29. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 18.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 28.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
5 Miles SSW Janesville WI
42.63°N 89.04°W (Elev. 804 m)
42.63°N 89.04°W (Elev. 804 m)
5:38 pm CDT Jun 20, 2025
5pm CDT Jun 20, 2025-6pm CDT Jun 27, 2025