National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

36°F

2°C

Humidity 75%
Wind Speed E 5 mph
Barometer 30.15 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 25 Mar 1:10 am CDT
Extended Forecast for

2 Miles W Darien WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 35. Southeast wind around 5 mph.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 67. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. Southwest wind 5 to 10 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of rain after 1pm. Increasing clouds, with a high near 66. South wind 5 to 10 mph becoming north 10 to 15 mph in the afternoon.

    High: 66 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A slight chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 25. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 25 °F

    Slight Chance
    Rain/Snow

  • Friday

    Friday: Mostly sunny, with a high near 43. North wind around 10 mph.

    High: 43 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24. Northwest wind 5 to 10 mph.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 50. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.

    High: 50 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 35. Southeast wind around 5 mph.
Wednesday
Partly sunny, with a high near 67. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 50. Southwest wind 5 to 10 mph.
Thursday
A 50 percent chance of rain after 1pm. Increasing clouds, with a high near 66. South wind 5 to 10 mph becoming north 10 to 15 mph in the afternoon.
Thursday Night
A slight chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 25. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 43. North wind around 10 mph.
Friday Night
Mostly clear, with a low around 24. Northwest wind 5 to 10 mph.
Saturday
Increasing clouds, with a high near 50. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Partly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 44.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 71.
Monday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 47.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Darien WI
 42.59°N 88.75°W (Elev. 889 ft)
Last Update:
1:21 am CDT Mar 25, 2026
Forecast Valid:
1am CDT Mar 25, 2026-6pm CDT Mar 31, 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