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 65%
Wind Speed W 8 mph
Barometer 30.05 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 18 Apr 10:15 pm CDT
Extended Forecast for

2 Miles W Darien WI

  • Tonight

    Tonight: Mostly clear, with a low around 30. Southwest wind 5 to 10 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of rain and snow showers before 11am, then a chance of rain showers. Mostly sunny, with a high near 48. West wind 5 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 30%.

    High: 48 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 26. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 52. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. South wind around 10 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. Southwest wind 10 to 15 mph.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45. West wind around 5 mph becoming northeast after midnight.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 71. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 30. Southwest wind 5 to 10 mph.
Sunday
A slight chance of rain and snow showers before 11am, then a chance of rain showers. Mostly sunny, with a high near 48. West wind 5 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 26. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 52. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 40. South wind around 10 mph.
Tuesday
Mostly sunny, with a high near 70. Southwest wind 10 to 15 mph.
Tuesday Night
Partly cloudy, with a low around 45. West wind around 5 mph becoming northeast after midnight.
Wednesday
Sunny, with a high near 71. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 69.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 41.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 60.
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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:
10:12 pm CDT Apr 18, 2026
Forecast Valid:
10pm CDT Apr 18, 2026-6pm CDT Apr 25, 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