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

37°F

3°C

Humidity 56%
Wind Speed S 9 mph
Barometer 29.94 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 9 Feb 4:45 pm CST
Extended Forecast for

Alden IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. South wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 38 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 34. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 34 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 20. Northwest wind around 5 mph becoming calm in the evening.

    Low: 20 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 35.

    High: 35 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around 23.

    Low: 23 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 32. South wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 38. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 23. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 34. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around 20. Northwest wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 35.
Thursday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around 23.
Friday
Sunny, with a high near 40.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Mostly cloudy, with a high near 42.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 29.
Sunday
A chance of snow. Mostly sunny, with a high near 40.
Sunday Night
Partly cloudy, with a low around 28.
Washington's Birthday
Mostly cloudy, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alden IL
 42.46°N 88.52°W
Last Update:
3:11 pm CST Feb 9, 2026
Forecast Valid:
5pm CST Feb 9, 2026-6pm CST Feb 16, 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