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

26°F

-3°C

Humidity 53%
Wind Speed Calm
Barometer 30.36 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Last update 23 Feb 7:10 pm CST
Extended Forecast for

Illinois Valley Rgnl-Walter A Duncan Field Airport IL

  • Tonight

    Tonight: Increasing clouds, with a low around 17. Light and variable wind becoming south 5 to 10 mph after midnight.

    Low: 17 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy, with a high near 47. Breezy, with a south wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 47 °F

    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Cloudy during the early evening, then gradual clearing, with a low around 23. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Gradual
    Clearing

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. West northwest wind 5 to 15 mph.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 25. Northwest wind around 5 mph becoming east northeast after midnight. Winds could gust as high as 15 mph.

    Low: 25 °F

    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow before noon. Mostly sunny, with a high near 41.

    High: 41 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 17. Light and variable wind becoming south 5 to 10 mph after midnight.
Tuesday
Cloudy, with a high near 47. Breezy, with a south wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.
Tuesday Night
Cloudy during the early evening, then gradual clearing, with a low around 23. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 37. West northwest wind 5 to 15 mph.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 25. Northwest wind around 5 mph becoming east northeast after midnight. Winds could gust as high as 15 mph.
Thursday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 41.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 32.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
A chance of rain and snow. Partly sunny, with a high near 36.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 21.
Monday
A chance of snow. Mostly cloudy, with a high near 35.
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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:
4:46 pm CST Feb 23, 2026
Forecast Valid:
7pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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