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

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

52°F

11°C

Humidity 77%
Wind Speed NW 8 mph
Barometer 30.01 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 9 Apr 2:10 am CDT
Extended Forecast for

5 Miles WSW Fort Atkinson WI

  • Overnight

    Overnight: Showers, mainly before 3am. Low around 44. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Showers

  • Thursday

    Thursday: Increasing clouds, with a high near 60. West wind 5 to 10 mph.

    High: 60 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Showers, mainly after 9pm. Low around 42. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 42 °F

    Showers

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 55. Northwest wind around 5 mph.

    High: 55 °F

    Gradual
    Clearing

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. North wind around 5 mph becoming calm.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers after 1pm. Increasing clouds, with a high near 57. Light southeast wind increasing to 5 to 10 mph in the morning.

    High: 57 °F

    Sunny then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 47. Southeast wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 72. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    High: 72 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.

    Low: 61 °F

    Showers
    Likely

Detailed Forecast

Overnight
Showers, mainly before 3am. Low around 44. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Increasing clouds, with a high near 60. West wind 5 to 10 mph.
Thursday Night
Showers, mainly after 9pm. Low around 42. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 55. Northwest wind around 5 mph.
Friday Night
Mostly clear, with a low around 32. North wind around 5 mph becoming calm.
Saturday
A 20 percent chance of showers after 1pm. Increasing clouds, with a high near 57. Light southeast wind increasing to 5 to 10 mph in the morning.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 47. Southeast wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 72. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 30%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Tuesday
Showers and possibly a thunderstorm. High near 72. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 46. Chance of precipitation is 80%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Fort Atkinson WI
 42.88°N 88.93°W (Elev. 774 ft)
Last Update:
2:36 am CDT Apr 9, 2026
Forecast Valid:
2am CDT Apr 9, 2026-6pm CDT Apr 15, 2026
 
Forecast Discussion
 
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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