Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

48°F

9°C

Humidity 54%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 30 Mar 12:50 am CDT
Extended Forecast for

Darien WI

  • Overnight

    Overnight: Mostly clear, with a low around 44. South wind 5 to 10 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. Southwest wind 5 to 15 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of rain and thunderstorms before 1am, then a slight chance of rain and thunderstorms after 5am.  Mostly cloudy, with a low around 61. Southwest wind 5 to 15 mph.  Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of rain and thunderstorms before 1pm, then rain and possibly a thunderstorm between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm.  High near 71. Breezy, with a southwest wind 10 to 20 mph becoming northwest in the afternoon. Winds could gust as high as 35 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Breezy.
    Slight Chance
    T-storms then
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and thunderstorms.  Mostly cloudy, with a low around 33. North wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 40%.

    Low: 33 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain and snow after 1pm.  Mostly cloudy, with a high near 42. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain, possibly mixed with snow, becoming all rain after 4am.  Low around 32. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 32 °F

    Rain/Snow and
    Breezy

  • Thursday

    Thursday: Rain.  High near 51. East wind around 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 51 °F

    Rain

  • Thursday Night

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

    Low: 32 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 44. South wind 5 to 10 mph.
Monday
Sunny, with a high near 75. Southwest wind 5 to 15 mph.
Monday Night
A slight chance of rain and thunderstorms before 1am, then a slight chance of rain and thunderstorms after 5am. Mostly cloudy, with a low around 61. Southwest wind 5 to 15 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of rain and thunderstorms before 1pm, then rain and possibly a thunderstorm between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. High near 71. Breezy, with a southwest wind 10 to 20 mph becoming northwest in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 33. North wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Wednesday
A chance of rain and snow after 1pm. Mostly cloudy, with a high near 42. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Wednesday Night
Rain, possibly mixed with snow, becoming all rain after 4am. Low around 32. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Thursday
Rain. High near 51. East wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
A chance of rain and snow before 10pm, then a chance of rain. 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 50.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Saturday
Rain likely. Mostly cloudy, with a high near 61. Chance of precipitation is 70%.
Saturday Night
Rain likely. Cloudy, with a low around 39. Chance of precipitation is 60%.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 51. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Darien WI
 42.59°N 88.72°W (Elev. 945 ft)
12:32 am CDT Mar 30, 2026
1am CDT Mar 30, 2026-6pm CDT Apr 5, 2026
 
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Additional Resources

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