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

36°F

2°C

Humidity 81%
Wind Speed W 5 mph
Barometer 29.85 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 10 Feb 7:41 am CST
Extended Forecast for

Illinois Valley Rgnl-Walter A Duncan Field Airport IL

  • Today

    Today: Mostly sunny, with a high near 48. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 48 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 26. Northwest wind around 10 mph.

    Low: 26 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 43. Northwest wind around 10 mph, with gusts as high as 15 mph.

    High: 43 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 28. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

    Low: 28 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A slight chance of snow before noon, then a slight chance of rain and snow. Cloudy, with a high near 43. Calm wind becoming east southeast around 5 mph in the morning. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 48. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 26. Northwest wind around 10 mph.
Wednesday
Sunny, with a high near 43. Northwest wind around 10 mph, with gusts as high as 15 mph.
Wednesday Night
Increasing clouds, with a low around 28. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Thursday
A slight chance of snow before noon, then a slight chance of rain and snow. Cloudy, with a high near 43. Calm wind becoming east southeast around 5 mph in the morning. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 27.
Friday
Sunny, with a high near 48.
Friday Night
Mostly clear, with a low around 28.
Saturday
Partly sunny, with a high near 49.
Saturday Night
A chance of rain after midnight. Mostly cloudy, with a low around 32.
Sunday
A chance of rain. Mostly sunny, with a high near 47.
Sunday Night
Mostly clear, with a low around 29.
Washington's Birthday
Partly sunny, with a high near 50.
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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:
5:51 am CST Feb 10, 2026
Forecast Valid:
8am CST Feb 10, 2026-6pm CST Feb 16, 2026
 
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Additional Resources

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Chance of Precipitation