National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

18°F

-8°C

Humidity 79%
Wind Speed Calm
Barometer 29.88 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 26 Feb 2:35 am CST
Extended Forecast for

Alden IL

  • Overnight

    Overnight: Partly cloudy, with a low around 16. Calm wind.

    Low: 16 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 41. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 41 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 29. Southwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 29 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 59. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 40 mph.

    High: 59 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26. West wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow. Cloudy, with a high near 32.

    High: 32 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 16. Calm wind.
Thursday
Partly sunny, with a high near 41. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 29. Southwest wind around 10 mph, with gusts as high as 15 mph.
Friday
Sunny, with a high near 59. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 40 mph.
Friday Night
Partly cloudy, with a low around 26. West wind 10 to 15 mph becoming north northwest after midnight. Winds could gust as high as 25 mph.
Saturday
A 50 percent chance of snow. Cloudy, with a high near 32.
Saturday Night
Partly cloudy, with a low around 13.
Sunday
Partly sunny, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 16.
Monday
Mostly cloudy, with a high near 34.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Mostly cloudy, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Mostly cloudy, with a high near 45.
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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:
1:41 am CST Feb 26, 2026
Forecast Valid:
2am CST Feb 26, 2026-6pm CST Mar 4, 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