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

41°F

5°C

Humidity 93%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 5 Apr 11:50 pm CDT
Extended Forecast for

Alden IL

  • Overnight

    Overnight: A 40 percent chance of showers before 1am. Cloudy early, then becoming partly cloudy, with a low around 37. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 45. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 45 °F

    Mostly Cloudy
    then Partly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 22. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40. Northeast wind 5 to 10 mph becoming east southeast in the afternoon.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers between 1am and 4am, then a chance of rain showers after 4am. Mostly cloudy, with a low around 27. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 30 percent chance of showers before 7am. Mostly cloudy, with a high near 62. Breezy.

    High: 62 °F

    Breezy.
    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 63.

    High: 63 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 40 percent chance of showers before 1am. Cloudy early, then becoming partly cloudy, with a low around 37. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 45. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 22. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 40. Northeast wind 5 to 10 mph becoming east southeast in the afternoon.
Tuesday Night
A chance of snow showers between 1am and 4am, then a chance of rain showers after 4am. Mostly cloudy, with a low around 27. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers before 7am. Mostly cloudy, with a high near 62. Breezy.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 63.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 41.
Friday
A chance of showers. Partly sunny, with a high near 58.
Friday Night
A chance of showers. Mostly cloudy, with a low around 39.
Saturday
A chance of showers. Partly sunny, with a high near 60.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 48.
Sunday
Showers likely. Mostly cloudy, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alden IL
 42.46°N 88.52°W
Last Update:
12:06 am CDT Apr 6, 2026
Forecast Valid:
12am CDT Apr 6, 2026-6pm CDT Apr 12, 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