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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fog/Mist

66°F

19°C

Humidity 94%
Wind Speed SW 6 mph
Barometer 29.90 in
Dewpoint 64°F (18°C)
Visibility 7.00 mi
Last update 26 Aug 6:45 am CDT
Extended Forecast for

Darien WI

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 81. Southwest wind 10 to 15 mph becoming northwest in the afternoon.

    High: 81 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 59. Northwest wind 5 to 10 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 79. North wind 5 to 10 mph.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy during the early evening, then becoming clear, with a low around 55. North wind around 5 mph becoming calm.

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 79. Calm wind becoming south around 5 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. Calm wind becoming southeast around 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 79. South wind 5 to 10 mph.

    High: 79 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 64. South wind 10 to 15 mph.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 81. Southwest wind 10 to 15 mph becoming northwest in the afternoon.
Tonight
Mostly clear, with a low around 59. Northwest wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 79. North wind 5 to 10 mph.
Thursday Night
Mostly cloudy during the early evening, then becoming clear, with a low around 55. North wind around 5 mph becoming calm.
Friday
Sunny, with a high near 79. Calm wind becoming south around 5 mph.
Friday Night
Partly cloudy, with a low around 58. Calm wind becoming southeast around 5 mph.
Saturday
Partly sunny, with a high near 79. South wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 64. South wind 10 to 15 mph.
Sunday
Partly sunny, with a high near 84.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 68.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 84.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Darien WI
 42.59°N 88.72°W (Elev. 945 ft)
Last Update:
6:31 am CDT Aug 26, 2026
Forecast Valid:
7am CDT Aug 26, 2026-6pm CDT Sep 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation