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

30°F

-1°C

Humidity 86%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 27°F (-3°C)
Visibility 7.00 mi
Last update 15 Feb 3:01 am CST
Extended Forecast for

La Salle IL

  • Overnight

    Overnight: Partly cloudy, with a low around 32. West southwest wind around 5 mph.

    Low: 32 °F

    Partly Cloudy

  • 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 36. West northwest wind 5 to 10 mph becoming south southwest after midnight.

    Low: 36 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 63. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of rain, then a chance of rain and thunderstorms after midnight. Mostly cloudy, with a low around 53. Breezy. Chance of precipitation is 50%.

    Low: 53 °F

    Slight Chance
    Rain then
    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 65. Breezy.

    High: 65 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 32. West southwest wind around 5 mph.
Sunday
Sunny, with a high near 59. West wind 5 to 10 mph.
Sunday Night
Increasing clouds, with a low around 36. West northwest wind 5 to 10 mph becoming south southwest after midnight.
Washington's Birthday
Mostly sunny, with a high near 63. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
Mostly cloudy, with a low around 40. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday
Mostly cloudy, with a high near 59.
Tuesday Night
A slight chance of rain, then a chance of rain and thunderstorms after midnight. Mostly cloudy, with a low around 53. Breezy. Chance of precipitation is 50%.
Wednesday
Sunny, with a high near 65. Breezy.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
A chance of rain after noon. Partly sunny, with a high near 58.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 32.
Friday
A chance of rain and snow. Partly sunny, with a high near 43.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
La Salle IL
 41.34°N 89.09°W
Last Update:
2:11 am CST Feb 15, 2026
Forecast Valid:
3am CST Feb 15, 2026-6pm CST Feb 21, 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