Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

72°F

22°C

Humidity 69%
Wind Speed SW 7 mph
Barometer 30.03 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 21 Aug 9:45 am CDT
Extended Forecast for

Darien WI

  • Today

    Today: Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm.  High near 76. Southwest wind around 10 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and midnight.  Partly cloudy, with a low around 59. Southwest wind around 5 mph becoming northwest after midnight.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    T-storms
    Likely then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77. Northwest wind 5 to 15 mph.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 74. Light north wind becoming northwest 5 to 10 mph in the morning.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75. Calm wind becoming west around 5 mph.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 76. Southwest wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and midnight. Partly cloudy, with a low around 59. Southwest wind around 5 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 77. Northwest wind 5 to 15 mph.
Saturday Night
Mostly clear, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 74. Light north wind becoming northwest 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 53. Calm wind.
Monday
Mostly sunny, with a high near 75. Calm wind becoming west around 5 mph.
Monday Night
Partly cloudy, with a low around 56. Calm wind.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 61.
Wednesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Darien WI
 42.59°N 88.72°W (Elev. 945 ft)
9:31 am CDT Aug 21, 2026
10am CDT Aug 21, 2026-6pm CDT Aug 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database