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.

Light Rain

48°F

9°C

Humidity 87%
Wind Speed NW 5 mph
Barometer 29.97 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 30 Apr 9:19 pm CDT
Extended Forecast for

Illinois Valley Rgnl-Walter A Duncan Field Airport IL

  • Tonight

    Tonight: Scattered showers, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 39. North northwest wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 39 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 54. North wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 54 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy frost after 5am. Otherwise, partly cloudy, with a low around 38. North wind around 5 mph becoming calm after midnight.

    Low: 38 °F

    Partly Cloudy
    then Patchy
    Frost

  • Saturday

    Saturday: Patchy frost before 7am. Otherwise, mostly sunny, with a high near 58. North northwest wind 5 to 10 mph.

    High: 58 °F

    Patchy Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40. Light and variable wind becoming south southwest 5 to 10 mph in the evening.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 75. Breezy.

    High: 75 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Scattered showers, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 39. North northwest wind 5 to 10 mph. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 54. North wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Patchy frost after 5am. Otherwise, partly cloudy, with a low around 38. North wind around 5 mph becoming calm after midnight.
Saturday
Patchy frost before 7am. Otherwise, mostly sunny, with a high near 58. North northwest wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 40. Light and variable wind becoming south southwest 5 to 10 mph in the evening.
Sunday
Partly sunny, with a high near 68.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 75. Breezy.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 50.
Tuesday
A chance of showers. Partly sunny, with a high near 65.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 44.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 61.
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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:
8:56 pm CDT Apr 30, 2026
Forecast Valid:
9pm CDT Apr 30, 2026-6pm CDT May 7, 2026
 
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Additional Resources

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Chance of Precipitation