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.

Light Rain and Breezy

46°F

8°C

Humidity 93%
Wind Speed N 21 G 28 mph
Barometer 29.96 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 26 Mar 7:45 pm CDT
Extended Forecast for

Alden IL

  • Tonight

    Tonight: A 40 percent chance of showers before 9pm. Mostly cloudy, with a low around 26. Blustery, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 26 °F

    Chance
    Showers and
    Blustery then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 43. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 43 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 22. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 47. Light west wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers before 9pm. Mostly cloudy, with a low around 26. Blustery, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
Mostly sunny, with a high near 43. North wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 22. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 47. Light west wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 36. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 62.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 69.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Tuesday
A chance of showers. Mostly cloudy, with a high near 71.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 47.
Wednesday
A chance of showers. Mostly cloudy, with a high near 59.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 40.
Thursday
A chance of showers. Mostly cloudy, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alden IL
 42.46°N 88.52°W
Last Update:
4:23 pm CDT Mar 26, 2026
Forecast Valid:
8pm CDT Mar 26, 2026-6pm CDT Apr 2, 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