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

39°F

4°C

Humidity 81%
Wind Speed W 10 mph
Barometer 29.90 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 7 Mar 6:45 pm CST
Extended Forecast for

Alden IL

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 33. West northwest wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.

    Low: 33 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 61 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 44 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Sunny, with a high near 67. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43. South southwest wind 5 to 10 mph becoming east northeast after midnight.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers after noon. Mostly sunny, with a high near 63.

    High: 63 °F

    Sunny then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 35. Chance of precipitation is 90%.

    Low: 35 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, mainly before noon. Cloudy, with a high near 44.

    High: 44 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy during the early evening, then gradual clearing, with a low around 33. West northwest wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.
Sunday
Sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 44. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 67. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 43. South southwest wind 5 to 10 mph becoming east northeast after midnight.
Tuesday
A 50 percent chance of showers after noon. Mostly sunny, with a high near 63.
Tuesday Night
Showers and possibly a thunderstorm. Low around 35. Chance of precipitation is 90%.
Wednesday
Showers likely, mainly before noon. Cloudy, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly sunny, with a high near 45.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 33. Breezy.
Friday
Mostly cloudy, with a high near 56. Breezy.
Friday Night
Mostly cloudy, with a low around 25.
Saturday
Mostly cloudy, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alden IL
 42.46°N 88.52°W
Last Update:
5:51 pm CST Mar 7, 2026
Forecast Valid:
6pm CST Mar 7, 2026-6pm CDT Mar 14, 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