Hazardous Weather Conditions
Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Overcast with Haze
50°F
10°C
| Humidity | 62% |
| Wind Speed | E 9 mph |
| Barometer | 30.09 in |
| Dewpoint | 37°F (3°C) |
| Visibility | 6.00 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 4 Mar 1:45 pm CST |
Extended Forecast for
Janesville WI
This Afternoon

High: 55 °F
Mostly Cloudy
Tonight
Low: 39 °F
Cloudy then
Chance Rain
and Patchy
FogThursday
High: 50 °F
Chance Rain
and Patchy
Fog then
Mostly CloudyThursday Night
Low: 40 °F
Mostly Cloudy
then Slight
Chance RainFriday

High: 67 °F
Rain
Friday Night

Low: 46 °F
Rain
Saturday
High: 54 °F
Chance Rain
then Partly
SunnySaturday Night

Low: 34 °F
Mostly Clear
Sunday

High: 59 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Mostly cloudy, with a high near 55. East wind around 5 mph.
Tonight
A 30 percent chance of rain, mainly after 4am. Patchy fog after 3am. Otherwise, cloudy, with a low around 39. Northeast wind around 5 mph.
Thursday
A 40 percent chance of rain, mainly before 11am. Patchy fog before 11am. Otherwise, cloudy, with a high near 50. Northeast wind 5 to 10 mph.
Thursday Night
A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 40. Southeast wind around 5 mph.
Friday
Rain and possibly a thunderstorm. High near 67. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Rain and possibly a thunderstorm. Low around 46. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of rain before noon. Cloudy, then gradually becoming mostly sunny, with a high near 54. Northwest wind 10 to 15 mph.
Saturday Night
Mostly clear, with a low around 34. Southwest wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 68.
Monday Night
A 30 percent chance of rain. Partly cloudy, with a low around 45.
Tuesday
Rain and thunderstorms likely. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Janesville WI
42.67°N 89.04°W (Elev. 774 ft)
42.67°N 89.04°W (Elev. 774 ft)
1:32 pm CST Mar 4, 2026
2pm CST Mar 4, 2026-6pm CDT Mar 10, 2026



