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

70°F

21°C

Humidity 38%
Wind Speed SW 10 mph
Barometer 29.73 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 8 May 5:01 pm CDT
Extended Forecast for

Illinois Valley Rgnl-Walter A Duncan Field Airport IL

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Southwest wind 5 to 10 mph.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 76. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 76 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A 20 percent chance of showers between 11pm and midnight. Partly cloudy, with a low around 47. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 66. North wind 5 to 15 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 71. Breezy.

    High: 71 °F

    Chance
    Showers then
    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers before 1am. Partly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. Southwest wind 5 to 10 mph.
Saturday
Increasing clouds, with a high near 76. West wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
A 20 percent chance of showers between 11pm and midnight. Partly cloudy, with a low around 47. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 66. North wind 5 to 15 mph.
Sunday Night
Mostly clear, with a low around 41. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 65.
Monday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 44.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 71. Breezy.
Tuesday Night
A chance of showers before 1am. Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 81.
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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 pm CDT May 8, 2026
Forecast Valid:
5pm CDT May 8, 2026-6pm CDT May 15, 2026
 
Forecast Discussion
 
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Additional Resources

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