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

37°F

3°C

Humidity 87%
Wind Speed W 5 mph
Barometer 30.05 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 8 Nov 10:15 pm CST
Extended Forecast for

Darien WI

  • Tonight

    Tonight: Mostly clear, with a low around 36. Northwest wind around 5 mph becoming calm.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 58. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 58 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. Southwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. Calm wind becoming northwest around 5 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: A 40 percent chance of showers. Mostly cloudy, with a high near 53. Light and variable wind becoming north 5 to 10 mph in the afternoon.

    High: 53 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 33. North wind 5 to 15 mph.

    Low: 33 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers. Mostly cloudy, with a high near 44. North wind around 15 mph, with gusts as high as 25 mph.

    High: 44 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 36. Northwest wind around 5 mph becoming calm.
Monday
Increasing clouds, with a high near 58. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 39. Southwest wind 5 to 10 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 60. Calm wind becoming northwest around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Calm wind.
Veterans Day
A 40 percent chance of showers. Mostly cloudy, with a high near 53. Light and variable wind becoming north 5 to 10 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 33. North wind 5 to 15 mph.
Thursday
A 20 percent chance of showers. Mostly cloudy, with a high near 44. North wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 41.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 43.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Mostly sunny, with a high near 48.
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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:
9:51 pm CST Nov 8, 2026
Forecast Valid:
10pm CST Nov 8, 2026-6pm CST Nov 15, 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