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

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

50°F

10°C

Humidity 76%
Wind Speed SW 10 mph
Barometer 29.76 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 20 Mar 7:45 am CDT
Extended Forecast for

3 Miles WSW Darien WI

  • Today

    Today: Mostly cloudy, with a high near 61. Southwest wind 5 to 10 mph becoming north in the afternoon.

    High: 61 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. North wind around 5 mph becoming calm.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65. Southeast wind 5 to 15 mph becoming southwest in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 48. Southwest wind 5 to 10 mph becoming west after midnight.

    Low: 48 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 49. Breezy, with a northeast wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 49 °F

    Slight Chance
    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28. North wind 10 to 15 mph.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 47. North wind 5 to 10 mph.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 31. East wind around 5 mph becoming south after midnight.

    Low: 31 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 61. Southwest wind 5 to 10 mph becoming north in the afternoon.
Tonight
Mostly cloudy, with a low around 38. North wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 65. Southeast wind 5 to 15 mph becoming southwest in the afternoon.
Saturday Night
Increasing clouds, with a low around 48. Southwest wind 5 to 10 mph becoming west after midnight.
Sunday
A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 49. Breezy, with a northeast wind 10 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 28. North wind 10 to 15 mph.
Monday
Mostly sunny, with a high near 47. North wind 5 to 10 mph.
Monday Night
Increasing clouds, with a low around 31. East wind around 5 mph becoming south after midnight.
Tuesday
Mostly cloudy, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Darien WI
 42.57°N 88.78°W (Elev. 909 ft)
Last Update:
8:37 am CDT Mar 20, 2026
Forecast Valid:
8am CDT Mar 20, 2026-6pm CDT Mar 26, 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