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.

Overcast

46°F

8°C

Humidity 76%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 16 Feb 8:45 pm CST
Extended Forecast for

2 Miles W Darien WI

  • Tonight

    Tonight: A chance of sprinkles before 2am. Mostly cloudy, with a low around 37. Calm wind becoming east around 5 mph after midnight.

    Low: 37 °F

    Chance
    Sprinkles

  • Tuesday

    Tuesday: A chance of sprinkles before 4pm, then a chance of sprinkles after 5pm. Cloudy, with a high near 53. Southeast wind 5 to 15 mph.

    High: 53 °F

    Chance
    Sprinkles

  • Tuesday Night

    Tuesday Night: Rain. Patchy fog between 3am and 4am. Low around 48. Southeast wind around 15 mph becoming southwest after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of rain before noon. Sunny, with a high near 60. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 60 °F

    Breezy.
    Slight Chance
    Rain then
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 34. West wind 5 to 10 mph becoming southeast after midnight.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain after noon. Mostly sunny, with a high near 54. East wind 5 to 10 mph.

    High: 54 °F

    Mostly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain before midnight, then rain and snow likely. Some thunder is also possible. Low around 33. East wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Rain then
    Rain/Snow
    Likely

  • Friday

    Friday: A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 40. West wind 10 to 15 mph. Chance of precipitation is 50%.

    High: 40 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Tonight
A chance of sprinkles before 2am. Mostly cloudy, with a low around 37. Calm wind becoming east around 5 mph after midnight.
Tuesday
A chance of sprinkles before 4pm, then a chance of sprinkles after 5pm. Cloudy, with a high near 53. Southeast wind 5 to 15 mph.
Tuesday Night
Rain. Patchy fog between 3am and 4am. Low around 48. Southeast wind around 15 mph becoming southwest after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 20 percent chance of rain before noon. Sunny, with a high near 60. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 34. West wind 5 to 10 mph becoming southeast after midnight.
Thursday
A 40 percent chance of rain after noon. Mostly sunny, with a high near 54. East wind 5 to 10 mph.
Thursday Night
Rain before midnight, then rain and snow likely. Some thunder is also possible. Low around 33. East wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 40. West wind 10 to 15 mph. Chance of precipitation is 50%.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 37.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 14.
Monday
Mostly sunny, with a high near 32.
Basemap Options
Click map to change the forecast location
Loading map...
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:
7:34 pm CST Feb 16, 2026
Forecast Valid:
8pm CST Feb 16, 2026-6pm CST Feb 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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