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.

Partly Cloudy

64°F

18°C

Humidity 24%
Wind Speed SW 13 G 26 mph
Barometer 30.04 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 29 Mar 2:45 pm CDT
Extended Forecast for

5 Miles SW Fort Atkinson WI

  • Tonight

    Tonight: Mostly clear, with a low around 43. South wind 5 to 10 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. South wind 5 to 10 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: A chance of rain before 10pm, then a chance of rain and thunderstorms between 10pm and 1am, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. Southwest 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: 56 °F

    Chance
    T-storms then
    Rain Likely

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm. High near 72. Southwest wind around 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 72 °F

    Rain

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain before 1am. Mostly cloudy, with a low around 35. North wind 10 to 15 mph.

    Low: 35 °F

    Chance Rain

  • Wednesday

    Wednesday: A slight chance of rain and snow after 1pm. Mostly cloudy, with a high near 44. Northeast wind 10 to 15 mph. Chance of precipitation is 20%.

    High: 44 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely before 4am, then rain, snow, and freezing rain likely. Cloudy, with a low around 31. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 31 °F

    Chance
    Rain/Snow
    then Wintry
    Mix Likely

  • Thursday

    Thursday: Rain, snow, and freezing rain likely before 10am, then rain and snow likely between 10am and 4pm, then rain likely after 4pm. Mostly cloudy, with a high near 43. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 43 °F

    Wintry Mix
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A chance of rain before 7pm, then a chance of rain and snow between 7pm and 10pm, then a chance of rain after 10pm. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.

    Low: 32 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 43. South wind 5 to 10 mph.
Monday
Sunny, with a high near 75. South wind 5 to 10 mph.
Monday Night
A chance of rain before 10pm, then a chance of rain and thunderstorms between 10pm and 1am, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 56. Southwest 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.
Tuesday
Rain and possibly a thunderstorm. High near 72. Southwest wind around 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A 40 percent chance of rain before 1am. Mostly cloudy, with a low around 35. North wind 10 to 15 mph.
Wednesday
A slight chance of rain and snow after 1pm. Mostly cloudy, with a high near 44. Northeast wind 10 to 15 mph. Chance of precipitation is 20%.
Wednesday Night
Rain and snow likely before 4am, then rain, snow, and freezing rain likely. Cloudy, with a low around 31. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain, snow, and freezing rain likely before 10am, then rain and snow likely between 10am and 4pm, then rain likely after 4pm. Mostly cloudy, with a high near 43. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A chance of rain before 7pm, then a chance of rain and snow between 7pm and 10pm, then a chance of rain after 10pm. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.
Friday
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 49.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Saturday
Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.
Saturday Night
Rain likely. Cloudy, with a low around 38. Chance of precipitation is 60%.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 51.
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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:
2:36 pm CDT Mar 29, 2026
Forecast Valid:
3pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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