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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 61%
Wind Speed N 12 mph
Barometer 29.83 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Apr 2:45 pm CDT
Extended Forecast for

Darien WI

Flood Watch April 17, 01:00pm until April 18, 07:00am
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, increasing clouds, with a low around 51. Calm wind becoming southeast around 5 mph after midnight.

    Low: 51 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 78. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 78 °F

    Patchy Fog
    then Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: Showers and thunderstorms before 1am, then showers likely. Some of the storms could be severe. Low around 39. South wind around 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 39 °F

    Severe
    Thunderstorms
    then Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 49. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 49 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 48. Northwest wind 10 to 15 mph.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, increasing clouds, with a low around 51. Calm wind becoming southeast around 5 mph after midnight.
Friday
A 30 percent chance of showers and thunderstorms after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 78. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.
Friday Night
Showers and thunderstorms before 1am, then showers likely. Some of the storms could be severe. Low around 39. South wind around 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday
A 30 percent chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 49. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 30. West wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 48. Northwest wind 10 to 15 mph.
Sunday Night
Mostly clear, with a low around 28. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 57. Light southeast wind becoming south 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 70.
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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:
3:32 pm CDT Apr 16, 2026
Forecast Valid:
3pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation