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

10°F

-12°C

Humidity 92%
Wind Speed N 3 mph
Barometer 30.44 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 1 Mar 6:45 am CST
Extended Forecast for

Alden IL

  • Today

    Today: Mostly sunny, with a high near 32. East northeast wind 5 to 10 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 20. East wind around 5 mph, with gusts as high as 10 mph.

    Low: 20 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 43. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 43 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 33. East southeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly before noon. Cloudy, with a high near 43. East wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.

    High: 43 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 47. Chance of precipitation is 50%.

    High: 47 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 52.

    High: 52 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 32. East northeast wind 5 to 10 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 20. East wind around 5 mph, with gusts as high as 10 mph.
Monday
Mostly sunny, with a high near 43. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
A 50 percent chance of showers after midnight. Mostly cloudy, with a low around 33. East southeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.
Tuesday
Showers likely, mainly before noon. Cloudy, with a high near 43. East wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 34.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 47. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Cloudy, with a low around 38.
Thursday
A chance of showers. Mostly cloudy, with a high near 52.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 41.
Friday
Showers likely. Mostly cloudy, with a high near 62.
Friday Night
Showers likely. Mostly cloudy, with a low around 41.
Saturday
A chance of showers. Mostly cloudy, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Alden IL
 42.46°N 88.52°W
Last Update:
6:46 am CST Mar 1, 2026
Forecast Valid:
7am CST Mar 1, 2026-6pm CST Mar 7, 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