Hazardous Weather Conditions
Current conditions at
Janesville-Rock County (KJVL)
Lat: 42.62°NLon: 89.04°WElev: 801ft.
Overcast and Breezy
75°F
24°C
| Humidity | 61% |
| Wind Speed | S 21 G 30 mph |
| Barometer | 29.63 in |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 17 Apr 3:45 pm CDT |
Extended Forecast for
5 Miles WSW Fort Atkinson WI
Flood Watch until further notice
Flood Watch until April 18, 07:00am
Tornado Watch until April 17, 08:00pm
NOW: Multiple hazards in effect

Click HERE for Details
This Afternoon

High: 78 °F
Severe
Thunderstorms
and BreezyTonight
Low: 38 °F
Severe
Thunderstorms
then ShowersSaturday

High: 48 °F
Mostly Sunny
and BreezySaturday Night

Low: 31 °F
Mostly Clear
Sunday
High: 48 °F
Mostly Sunny
then Slight
Chance
ShowersSunday Night

Low: 28 °F
Mostly Clear
Monday

High: 55 °F
Sunny
Monday Night

Low: 42 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Showers and possibly a thunderstorm. Some of the storms could be severe. High near 78. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 3am, then a slight chance of showers between 3am and 4am. Some of the storms could be severe. Low around 38. South wind around 15 mph becoming northwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Mostly sunny, with a high near 48. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 31. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 48. Northwest wind 5 to 15 mph.
Sunday Night
Mostly clear, with a low around 28. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 55. Light southeast wind becoming south 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 42. South wind around 10 mph.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 71.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
5 Miles WSW Fort Atkinson WI
42.88°N 88.93°W (Elev. 774 ft)
42.88°N 88.93°W (Elev. 774 ft)
3:33 pm CDT Apr 17, 2026
3pm CDT Apr 17, 2026-6pm CDT Apr 24, 2026



