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.

Fog/Mist

39°F

4°C

Humidity 100%
Wind Speed E 18 mph
Barometer 29.98 in
Dewpoint 39°F (4°C)
Visibility 2.00 mi
Wind Chill30°F (-1°C)
Last update 18 Nov 2:45 pm CST
Extended Forecast for

4 Miles WSW Darien WI

  • This Afternoon

    This Afternoon: A 20 percent chance of rain. Cloudy, with a high near 41. Northeast wind 10 to 15 mph.

    High: 41 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A chance of sprinkles before 9pm. Cloudy, with a low around 35. Northeast wind 5 to 10 mph.

    Low: 35 °F

    Chance
    Sprinkles

  • Wednesday

    Wednesday: Cloudy, with a high near 45. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 45 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain. Mostly cloudy, with a high near 55. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 55 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. West wind around 5 mph becoming north after midnight.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 49. North wind around 5 mph.

    High: 49 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain before midnight. Partly cloudy, with a low around 27. North wind around 5 mph becoming calm.

    Low: 27 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of rain. Cloudy, with a high near 41. Northeast wind 10 to 15 mph.
Tonight
A chance of sprinkles before 9pm. Cloudy, with a low around 35. Northeast wind 5 to 10 mph.
Wednesday
Cloudy, with a high near 45. Northeast wind around 5 mph becoming southeast in the afternoon.
Wednesday Night
Cloudy, with a low around 37. Calm wind.
Thursday
A 20 percent chance of rain. Mostly cloudy, with a high near 55. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 32. West wind around 5 mph becoming north after midnight.
Friday
Mostly sunny, with a high near 49. North wind around 5 mph.
Friday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 27. North wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 53.
Monday Night
A 20 percent chance of rain. Partly cloudy, with a low around 33.
Tuesday
A 30 percent chance of rain. Partly sunny, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Darien WI
 42.57°N 88.78°W (Elev. 909 ft)
Last Update:
1:32 pm CST Nov 18, 2025
Forecast Valid:
3pm CST Nov 18, 2025-6pm CST Nov 25, 2025
 
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