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.

Fair

59°F

15°C

Humidity 100%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 27 Aug 3:15 am CDT
Extended Forecast for

6 Miles WSW Fort Atkinson WI

  • Overnight

    Overnight: Clear, with a low around 61. Northwest wind around 5 mph.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80. Northwest wind 5 to 10 mph.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. Northwest wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. South wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 79. South wind 10 to 15 mph.

    High: 79 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Breezy, with a south wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely and
    Breezy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 86 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Clear, with a low around 61. Northwest wind around 5 mph.
Thursday
Mostly sunny, with a high near 80. Northwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 57. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 61. South wind around 5 mph.
Saturday
Mostly cloudy, with a high near 79. South wind 10 to 15 mph.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Breezy, with a south wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Fort Atkinson WI
 42.88°N 88.93°W (Elev. 774 ft)
Last Update:
2:41 am CDT Aug 27, 2026
Forecast Valid:
3am CDT Aug 27, 2026-6pm CDT Sep 2, 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