Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy and Breezy

46°F

8°C

Humidity 50%
Wind Speed W 22 G 36 mph
Barometer 29.92 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 18 Apr 2:45 pm CDT
Extended Forecast for

Alden IL

Freeze Watch April 20, 12:00am until April 20, 09:00am
Frost Advisory April 19, 12:00am until April 19, 09:00am
Click here for hazard details and duration
Freeze Watch
Frost Advisory
  • This Afternoon

    This Afternoon: Partly sunny, with a high near 47. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.

    High: 47 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Areas of frost after midnight.  Otherwise, mostly clear, with a low around 31. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: A slight chance of rain and snow showers before 11am, then a chance of rain showers.  Increasing clouds, with a high near 47. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 30%.

    High: 47 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost after midnight.  Otherwise, mostly clear, with a low around 27. Northwest wind 5 to 10 mph becoming light north  after midnight. Winds could gust as high as 20 mph.

    Low: 27 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost before 8am.  Otherwise, sunny, with a high near 52. Light and variable wind becoming south southwest 5 to 10 mph in the morning.

    High: 52 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 47. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.
Tonight
Areas of frost after midnight. Otherwise, mostly clear, with a low around 31. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
A slight chance of rain and snow showers before 11am, then a chance of rain showers. Increasing clouds, with a high near 47. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 30%.
Sunday Night
Widespread frost after midnight. Otherwise, mostly clear, with a low around 27. Northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 20 mph.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 52. Light and variable wind becoming south southwest 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Showers likely. Mostly cloudy, with a low around 58.
Friday
A chance of showers. Mostly cloudy, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Alden IL
 42.46°N 88.52°W
2:46 pm CDT Apr 18, 2026
3pm CDT Apr 18, 2026-6pm CDT Apr 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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