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

37°F

3°C

Humidity 75%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 14 Feb 9:43 pm CST
Extended Forecast for

La Salle IL

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 33. Southeast wind around 5 mph becoming west after midnight.

    Low: 33 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 59. West wind 5 to 10 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 35. Light and variable wind becoming south southwest 5 to 10 mph after midnight.

    Low: 35 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 62. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 62 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly after midnight. Partly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 66. Breezy.

    High: 66 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 33. Southeast wind around 5 mph becoming west after midnight.
Sunday
Sunny, with a high near 59. West wind 5 to 10 mph.
Sunday Night
Increasing clouds, with a low around 35. Light and variable wind becoming south southwest 5 to 10 mph after midnight.
Washington's Birthday
Mostly sunny, with a high near 62. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 41. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 60.
Tuesday Night
A 30 percent chance of showers, mainly after midnight. Partly cloudy, with a low around 53.
Wednesday
Sunny, with a high near 66. Breezy.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
A chance of showers after noon. Mostly sunny, with a high near 57.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 41.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
La Salle IL
 41.34°N 89.09°W
Last Update:
8:46 pm CST Feb 14, 2026
Forecast Valid:
9pm CST Feb 14, 2026-6pm CST Feb 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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