Hazardous Weather Conditions
Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Fair
59°F
15°C
| Humidity | 72% |
| Wind Speed | Calm |
| Barometer | 29.88 in |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Last update | 21 Apr 11:10 pm CDT |
Extended Forecast for
5 Miles SSW Janesville WI
Flood Warning until further notice
NOW until further notice

Flood Warning
Tonight

Low: 47 °F
Patchy Fog
Wednesday
High: 76 °F
Areas Fog
then SunnyWednesday Night

Low: 57 °F
Partly Cloudy
Thursday

High: 80 °F
Mostly Sunny
Thursday Night
Low: 61 °F
Chance
T-storms then
Showers
LikelyFriday

High: 74 °F
Showers
LikelyFriday Night

Low: 47 °F
Slight Chance
ShowersSaturday

High: 68 °F
Mostly Sunny
Detailed Forecast
Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 47. Calm wind.
Wednesday
Areas of fog before 9am. Otherwise, sunny, with a high near 76. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 57. Southeast wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 80. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 61. South wind around 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 74. South wind 10 to 15 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 47. Northwest wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 68. North wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 65.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 61.
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 ft)
42.63°N 89.04°W (Elev. 804 ft)
9:33 pm CDT Apr 21, 2026
11pm CDT Apr 21, 2026-6pm CDT Apr 28, 2026



