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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

36°F

2°C

Humidity 100%
Wind Speed E 6 mph
Barometer 29.90 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 17 Feb 7:45 am CST
Extended Forecast for

Darien WI

  • Today

    Today: A 20 percent chance of rain after 5pm. Mostly cloudy, with a high near 54. Southeast wind 5 to 15 mph.

    High: 54 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tonight

    Tonight: Rain likely before midnight, then rain likely and possibly a thunderstorm between midnight and 3am, then a chance of rain and thunderstorms after 3am. Cloudy, with a low around 46. Southeast wind around 15 mph becoming southwest after midnight. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Rain Likely

  • Wednesday

    Wednesday: Sunny, with a high near 61. Windy, with a west wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 61 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35. Southwest wind 5 to 10 mph becoming southeast after midnight.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of rain, mainly after noon. Mostly sunny, with a high near 56. East wind 5 to 10 mph.

    High: 56 °F

    Slight Chance
    Rain then
    Chance Rain

  • Thursday Night

    Thursday Night: Rain before 3am, then rain and snow likely. Low around 33. East wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain then
    Rain/Snow
    Likely

  • Friday

    Friday: A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 40. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    High: 40 °F

    Breezy.
    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23. West wind 10 to 15 mph.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny
    then Slight
    Chance Snow

Detailed Forecast

Today
A 20 percent chance of rain after 5pm. Mostly cloudy, with a high near 54. Southeast wind 5 to 15 mph.
Tonight
Rain likely before midnight, then rain likely and possibly a thunderstorm between midnight and 3am, then a chance of rain and thunderstorms after 3am. Cloudy, with a low around 46. Southeast wind around 15 mph becoming southwest after midnight. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Sunny, with a high near 61. Windy, with a west wind 15 to 25 mph, with gusts as high as 35 mph.
Wednesday Night
Partly cloudy, with a low around 35. Southwest wind 5 to 10 mph becoming southeast after midnight.
Thursday
A 50 percent chance of rain, mainly after noon. Mostly sunny, with a high near 56. East wind 5 to 10 mph.
Thursday Night
Rain before 3am, then rain and snow likely. Low around 33. East wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday
A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 40. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 23. West wind 10 to 15 mph.
Saturday
A 20 percent chance of snow after noon. Partly sunny, with a high near 37.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 19.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 30.
Sunday Night
Partly cloudy, with a low around 14.
Monday
Sunny, with a high near 30.
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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:
7:34 am CST Feb 17, 2026
Forecast Valid:
8am CST Feb 17, 2026-6pm CST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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