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

N/A

Humidity NA
Wind Speed Calm
Barometer 30.35 in
Dewpoint N/A
Visibility 10.00 mi
Last update 1 Feb 5:10 am CST
Extended Forecast for

Illinois Valley Rgnl-Walter A Duncan Field Airport IL

  • Today

    Today: A 20 percent chance of snow after 3pm. Increasing clouds, with a high near 26. Wind chill values as low as -4. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 26 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Tonight

    Tonight: Snow likely, mainly before midnight. Cloudy, with a steady temperature around 22. South southwest wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Snow Likely

  • Monday

    Monday: Partly sunny, with a high near 30. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 30 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 18. North wind around 5 mph.

    Low: 18 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 29. North wind 5 to 10 mph.

    High: 29 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 28.

    High: 28 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

Detailed Forecast

Today
A 20 percent chance of snow after 3pm. Increasing clouds, with a high near 26. Wind chill values as low as -4. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Snow likely, mainly before midnight. Cloudy, with a steady temperature around 22. South southwest wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 30. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 18. North wind around 5 mph.
Tuesday
Mostly sunny, with a high near 29. North wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 10.
Wednesday
Sunny, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 14.
Thursday
Partly sunny, with a high near 36.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 29.
Friday
Partly sunny, with a high near 38.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Mostly sunny, with a high near 24.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Illinois Valley Rgnl-Walter A Duncan Field Airport IL
 41.34°N 89.14°W
Last Update:
5:36 am CST Feb 1, 2026
Forecast Valid:
5am CST Feb 1, 2026-6pm CST Feb 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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