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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

45°F

7°C

Humidity 93%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Mar 10:55 pm CDT
Extended Forecast for

Darien WI

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. East wind around 5 mph.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 67. Southeast wind 5 to 15 mph becoming southwest in the afternoon.

    High: 67 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47. Southwest wind 5 to 10 mph becoming northwest after midnight.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain. Cloudy, with a high near 49. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 49 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 27. North wind 5 to 15 mph.

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 45. North wind 5 to 10 mph.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 30. East wind around 5 mph becoming south after midnight.

    Low: 30 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54. South wind 10 to 15 mph becoming west in the afternoon.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 37. East wind around 5 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 67. Southeast wind 5 to 15 mph becoming southwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 47. Southwest wind 5 to 10 mph becoming northwest after midnight.
Sunday
A 20 percent chance of rain. Cloudy, with a high near 49. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 27. North wind 5 to 15 mph.
Monday
Mostly sunny, with a high near 45. North wind 5 to 10 mph.
Monday Night
Increasing clouds, with a low around 30. East wind around 5 mph becoming south after midnight.
Tuesday
Mostly cloudy, with a high near 54. South wind 10 to 15 mph becoming west in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 38.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 62.
Thursday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 41.
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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:
9:34 pm CDT Mar 20, 2026
Forecast Valid:
11pm CDT Mar 20, 2026-6pm CDT Mar 27, 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