National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

57°F

14°C

Humidity 72%
Wind Speed NE 8 mph
Barometer 29.93 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 20 Mar 9:38 pm CDT
Extended Forecast for

La Salle IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. East wind 5 to 10 mph.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77. East wind 5 to 10 mph becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 68. Breezy, with a west northwest wind 10 to 15 mph becoming north 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 68 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. Breezy, with a north wind 10 to 20 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. East wind 5 to 10 mph.
Saturday
Sunny, with a high near 77. East wind 5 to 10 mph becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Mostly clear, with a low around 55. Southwest wind around 10 mph, with gusts as high as 20 mph.
Sunday
Increasing clouds, with a high near 68. Breezy, with a west northwest wind 10 to 15 mph becoming north 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 32. Breezy, with a north wind 10 to 20 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 50.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 58.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
A chance of showers. Partly sunny, with a high near 70. Breezy.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
La Salle IL
 41.34°N 89.09°W
Last Update:
9:26 pm CDT Mar 20, 2026
Forecast Valid:
9pm CDT Mar 20, 2026-6pm CDT Mar 27, 2026
 
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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