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.

Fog/Mist

27°F

-3°C

Humidity 100%
Wind Speed SE 3 mph
Barometer 29.84 in
Dewpoint 27°F (-3°C)
Visibility 5.00 mi
Last update 27 Feb 4:35 am CST
Extended Forecast for

Alden IL

  • Today

    Today: Mostly sunny, with a high near 60. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 60 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 25. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 25 °F

    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 31. North northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 31 °F

    Slight Chance
    Snow then
    Chance Snow

  • Saturday Night

    Saturday Night: Cloudy, then gradually becoming partly cloudy, with a low around 15. North wind around 10 mph, with gusts as high as 15 mph.

    Low: 15 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 30. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 30 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 40.

    High: 40 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 60. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Tonight
Partly cloudy, with a low around 25. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
A 50 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 31. North northeast wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 15. North wind around 10 mph, with gusts as high as 15 mph.
Sunday
Partly sunny, with a high near 30. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 18.
Monday
Partly sunny, with a high near 36.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
A chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
A chance of rain. Partly sunny, with a high near 46.
Wednesday Night
Rain likely. Cloudy, with a low around 36.
Thursday
Rain likely. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alden IL
 42.46°N 88.52°W
Last Update:
4:41 am CST Feb 27, 2026
Forecast Valid:
4am CST Feb 27, 2026-6pm CST Mar 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation