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

39°F

4°C

Humidity 93%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 21 Mar 5:45 am CDT
Extended Forecast for

2 Miles NW Alden IL

  • Today

    Today: Mostly sunny, with a high near 72. Breezy, with a southeast wind 5 to 10 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 72 °F

    Partly Sunny
    then Sunny
    and Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 42. West southwest wind 5 to 15 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

    Low: 42 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 30 percent chance of rain, mainly before 4pm. Cloudy, with a high near 43. North northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 43 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 25. North wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 25 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 45. North wind around 5 mph, with gusts as high as 10 mph.

    High: 45 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 72. Breezy, with a southeast wind 5 to 10 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
Increasing clouds, with a low around 42. West southwest wind 5 to 15 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Sunday
A 30 percent chance of rain, mainly before 4pm. Cloudy, with a high near 43. North northeast wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 25. North wind 5 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 45. North wind around 5 mph, with gusts as high as 10 mph.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Mostly cloudy, with a high near 52.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
A chance of showers. Partly sunny, with a high near 59.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Alden IL
 42.48°N 88.55°W
Last Update:
6:01 am CDT Mar 21, 2026
Forecast Valid:
6am CDT Mar 21, 2026-6pm CDT Mar 27, 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