National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Rain

59°F

15°C

Humidity 100%
Wind Speed SW 14 mph
Barometer 29.79 in
Dewpoint 59°F (15°C)
Visibility 5.00 mi
Last update 12 Apr 9:30 pm CDT
Extended Forecast for

5 Miles SW Fort Atkinson WI

  • Tonight

    Tonight: Showers and possibly a thunderstorm before midnight, then isolated showers between midnight and 1am. Low around 60. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers then
    Isolated
    Showers

  • Monday

    Monday: A 20 percent chance of showers after 4pm. Mostly cloudy, with a high near 73. South wind around 10 mph.

    High: 73 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 63. Southwest wind 10 to 15 mph.

    Low: 63 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Southwest wind 10 to 15 mph. Chance of precipitation is 50%.

    High: 79 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 4am, then showers likely. Low around 56. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 70. South wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 70 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 55. South wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Mostly cloudy, then gradually becoming sunny, with a high near 74. Southwest wind around 10 mph. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before midnight, then isolated showers between midnight and 1am. Low around 60. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 20 percent chance of showers after 4pm. Mostly cloudy, with a high near 73. South wind around 10 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 63. Southwest wind 10 to 15 mph.
Tuesday
A slight chance of showers before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Southwest wind 10 to 15 mph. Chance of precipitation is 50%.
Tuesday Night
Showers and possibly a thunderstorm before 4am, then showers likely. Low around 56. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 70. South wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 55. South wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Mostly cloudy, then gradually becoming sunny, with a high near 74. Southwest wind around 10 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 53.
Friday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 80.
Friday Night
Showers and possibly a thunderstorm. Low around 50. Chance of precipitation is 80%.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 61.
Saturday Night
A chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 34. Chance of precipitation is 40%.
Sunday
A 30 percent chance of snow showers. Mostly sunny, with a high near 54.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Fort Atkinson WI
 42.88°N 88.9°W (Elev. 814 ft)
Last Update:
9:46 pm CDT Apr 12, 2026
Forecast Valid:
9pm CDT Apr 12, 2026-6pm CDT Apr 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation