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.

Light Snow

25°F

-4°C

Humidity 80%
Wind Speed NE 9 mph
Barometer 30.27 in
Dewpoint 19°F (-7°C)
Visibility 2.00 mi
Wind Chill16°F (-9°C)
Last update 28 Feb 5:45 pm CST
Extended Forecast for

Alden IL

  • Tonight

    Tonight: A chance of snow before 9pm, then a chance of flurries after 3am. Mostly cloudy, with a low around 19. North northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 19 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: A chance of flurries before 11am. Partly sunny, with a high near 31. North wind 5 to 10 mph becoming east in the afternoon.

    High: 31 °F

    Chance
    Flurries

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18. East southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 18 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of snow before 9pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 30. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.

    Low: 30 °F

    Slight Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Tuesday

    Tuesday: Rain likely, mainly before noon. Cloudy, with a high near 43. Chance of precipitation is 70%.

    High: 43 °F

    Rain Likely
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain. Partly cloudy, with a low around 31.

    Low: 31 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain. Partly sunny, with a high near 49.

    High: 49 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

Detailed Forecast

Tonight
A chance of snow before 9pm, then a chance of flurries after 3am. Mostly cloudy, with a low around 19. North northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday
A chance of flurries before 11am. Partly sunny, with a high near 31. North wind 5 to 10 mph becoming east in the afternoon.
Sunday Night
Partly cloudy, with a low around 18. East southeast wind around 5 mph, with gusts as high as 10 mph.
Monday
Mostly sunny, with a high near 42. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
A slight chance of snow before 9pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 30. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.
Tuesday
Rain likely, mainly before noon. Cloudy, with a high near 43. Chance of precipitation is 70%.
Tuesday Night
A 30 percent chance of rain. Partly cloudy, with a low around 31.
Wednesday
A chance of rain. Partly sunny, with a high near 49.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 38.
Thursday
A chance of rain. Mostly cloudy, with a high near 56.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 42.
Friday
Rain likely. Mostly cloudy, with a high near 61.
Friday Night
Rain likely. Mostly cloudy, with a low around 41.
Saturday
A chance of rain. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alden IL
 42.46°N 88.52°W
Last Update:
6:00 pm CST Feb 28, 2026
Forecast Valid:
6pm CST Feb 28, 2026-6pm CST Mar 7, 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