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

52°F

11°C

Humidity 88%
Wind Speed S 6 mph
Barometer 30.01 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 11 Oct 5:45 am CDT
Extended Forecast for

Alden IL

  • Today

    Today: Sunny, with a high near 78. South wind around 5 mph, with gusts as high as 10 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 61. South wind around 5 mph, with gusts as high as 15 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 85. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. West southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers. Partly sunny, with a high near 68.

    High: 68 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 66.

    High: 66 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 78. South wind around 5 mph, with gusts as high as 10 mph.
Tonight
Increasing clouds, with a low around 61. South wind around 5 mph, with gusts as high as 15 mph.
Columbus Day
Mostly sunny, with a high near 85. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 67. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 77. West southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 55.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 68.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 66.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 47.
Friday
Mostly cloudy, with a high near 59.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 54.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alden IL
 42.46°N 88.52°W
Last Update:
6:11 am CDT Oct 11, 2026
Forecast Valid:
6am CDT Oct 11, 2026-6pm CDT Oct 17, 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