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

45°F

7°C

Humidity 93%
Wind Speed W 13 G 21 mph
Barometer 29.73 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 7 Mar 10:45 am CST
Extended Forecast for

Alden IL

  • Today

    Today: A slight chance of drizzle before 2pm. Cloudy, with a temperature falling to around 41 by 4pm. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 58 °F⇓

    Slight Chance
    Drizzle and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, 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

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 59. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 59 °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: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Tuesday

    Tuesday: Showers likely after noon. Mostly sunny, with a high near 58. Chance of precipitation is 60%.

    High: 58 °F

    Sunny then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers. Cloudy, with a low around 34.

    Low: 34 °F

    Showers

  • Wednesday

    Wednesday: A chance of rain and snow showers. Cloudy, with a high near 43.

    High: 43 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
A slight chance of drizzle before 2pm. Cloudy, with a temperature falling to around 41 by 4pm. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, 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 59. 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
Clear, with a low around 40.
Tuesday
Showers likely after noon. Mostly sunny, with a high near 58. Chance of precipitation is 60%.
Tuesday Night
Showers. Cloudy, with a low around 34.
Wednesday
A chance of rain and snow showers. Cloudy, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 24.
Thursday
Mostly sunny, with a high near 44.
Thursday Night
A chance of rain and snow showers. Cloudy, with a low around 32.
Friday
Mostly cloudy, with a high near 52. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alden IL
 42.46°N 88.52°W
Last Update:
11:11 am CST Mar 7, 2026
Forecast Valid:
11am CST Mar 7, 2026-6pm CDT Mar 13, 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