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

55°F

13°C

Humidity 67%
Wind Speed NW 5 mph
Barometer 29.57 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 22 Mar 1:15 am CDT
Extended Forecast for

2 Miles W Darien WI

  • Overnight

    Overnight: Partly cloudy, with a low around 43. Southwest wind 5 to 10 mph becoming northeast.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of sprinkles with a slight chance of rain before 3pm, then a chance of sprinkles between 3pm and 4pm. Mostly cloudy, with a temperature falling to around 41 by 5pm. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 46 °F⇓

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. North wind 5 to 15 mph.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 45. North wind around 5 mph.

    High: 45 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Calm wind becoming southeast around 5 mph in the evening.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54. South wind 5 to 10 mph.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southeast wind around 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 56. Southeast wind 5 to 10 mph.

    High: 56 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Partly cloudy, with a low around 43. Southwest wind 5 to 10 mph becoming northeast.
Sunday
A chance of sprinkles with a slight chance of rain before 3pm, then a chance of sprinkles between 3pm and 4pm. Mostly cloudy, with a temperature falling to around 41 by 5pm. Northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 25. North wind 5 to 15 mph.
Monday
Sunny, with a high near 45. North wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 29. Calm wind becoming southeast around 5 mph in the evening.
Tuesday
Mostly cloudy, with a high near 54. South wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Southeast wind around 5 mph.
Wednesday
A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 56. Southeast wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 42.
Thursday
A 30 percent chance of rain, mainly before 1pm. Partly sunny, with a high near 63.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 42.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 51.
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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:
1:21 am CDT Mar 22, 2026
Forecast Valid:
1am CDT Mar 22, 2026-6pm CDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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