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.

Partly Cloudy

25°F

-4°C

Humidity 86%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 12 Feb 5:15 am CST
Extended Forecast for

2 Miles W Darien WI

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 40. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 40 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 28. East wind around 5 mph becoming south after midnight.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 48. Southwest wind 5 to 10 mph.

    High: 48 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28. Southwest wind around 5 mph becoming calm.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 51. Calm wind becoming south around 5 mph.

    High: 51 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31. South wind around 5 mph becoming calm.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 51. Calm wind becoming northwest around 5 mph in the morning.

    High: 51 °F

    Sunny

  • Sunday Night

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

    Low: 30 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 40. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 28. East wind around 5 mph becoming south after midnight.
Friday
Sunny, with a high near 48. Southwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 28. Southwest wind around 5 mph becoming calm.
Saturday
Partly sunny, with a high near 51. Calm wind becoming south around 5 mph.
Saturday Night
Partly cloudy, with a low around 31. South wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 51. Calm wind becoming northwest around 5 mph in the morning.
Sunday Night
Increasing clouds, with a low around 30. Calm wind becoming south around 5 mph after midnight.
Washington's Birthday
Partly sunny, with a high near 53.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
A 20 percent chance of rain. Mostly cloudy, with a high near 54.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 41.
Wednesday
A 30 percent chance of rain. Mostly sunny, with a high near 54.
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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:
6:26 am CST Feb 12, 2026
Forecast Valid:
6am CST Feb 12, 2026-6pm CST Feb 18, 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