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

20°F

-7°C

Humidity 83%
Wind Speed W 7 mph
Barometer 30.05 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 21 Feb 2:35 am CST
Extended Forecast for

Illinois Valley Rgnl-Walter A Duncan Field Airport IL

  • Overnight

    Overnight: Partly cloudy, with a low around 22. West northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 32. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 32 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 19. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 19 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    and Blustery

  • Sunday

    Sunday: Mostly cloudy, with a high near 27. Blustery, with a northwest wind around 20 mph, with gusts as high as 30 mph.

    High: 27 °F

    Mostly Cloudy
    and Blustery

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 16 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 30.

    High: 30 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 22. West northwest wind around 10 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, with a high near 32. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 19. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 25 mph.
Sunday
Mostly cloudy, with a high near 27. Blustery, with a northwest wind around 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 16. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Mostly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 55.
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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:
1:21 am CST Feb 21, 2026
Forecast Valid:
2am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
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Additional Resources

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Chance of Precipitation