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

54°F

12°C

Humidity 82%
Wind Speed SW 15 mph
Barometer 29.64 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 4 Nov 2:45 pm CST
Extended Forecast for

Fort Atkinson WI

  • This Afternoon

    This Afternoon: A chance of sprinkles before 5pm. Cloudy, with a steady temperature around 54. Southwest wind around 15 mph.

    High: 54 °F

    Chance
    Sprinkles

  • Tonight

    Tonight: A chance of sprinkles between 1am and 3am, then a chance of rain after 3am. Cloudy, with a low around 45. Southwest wind 10 to 15 mph. Chance of precipitation is 40%.

    Low: 45 °F

    Cloudy then
    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly before 1pm. Cloudy, with a high near 52. Southwest wind 10 to 15 mph becoming north in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Rain Likely
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 35. North wind 10 to 15 mph.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 48. North wind 5 to 15 mph.

    High: 48 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. North wind around 5 mph becoming calm in the evening.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 51. Calm wind becoming northwest around 5 mph.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. Calm wind becoming west around 5 mph after midnight.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of sprinkles before 5pm. Cloudy, with a steady temperature around 54. Southwest wind around 15 mph.
Tonight
A chance of sprinkles between 1am and 3am, then a chance of rain after 3am. Cloudy, with a low around 45. Southwest wind 10 to 15 mph. Chance of precipitation is 40%.
Thursday
Rain likely, mainly before 1pm. Cloudy, with a high near 52. Southwest wind 10 to 15 mph becoming north in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 35. North wind 10 to 15 mph.
Friday
Partly sunny, with a high near 48. North wind 5 to 15 mph.
Friday Night
Mostly clear, with a low around 26. North wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 51. Calm wind becoming northwest around 5 mph.
Saturday Night
Mostly clear, with a low around 30. Calm wind becoming west around 5 mph after midnight.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 32.
Monday
Sunny, with a high near 61.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 35.
Veterans Day
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Atkinson WI
 42.92°N 88.84°W (Elev. 797 ft)
Last Update:
2:31 pm CST Nov 4, 2026
Forecast Valid:
3pm CST Nov 4, 2026-6pm CST Nov 11, 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