National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

52°F

11°C

Humidity 58%
Wind Speed NE 12 mph
Barometer 30.27 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 20 May 10:40 pm CDT
Extended Forecast for

Illinois Valley Rgnl-Walter A Duncan Field Airport IL

  • Tonight

    Tonight: Partly cloudy, with a low around 46. Northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. East wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely after 1pm. Mostly cloudy, with a high near 67. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 67 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers, mainly before 1am. Low around 54. East northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 54 °F

    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 46. Northeast wind around 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 67. East wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 49. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Showers likely after 1pm. Mostly cloudy, with a high near 67. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Friday Night
Showers, mainly before 1am. Low around 54. East northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday
Partly sunny, with a high near 75.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 56.
Memorial Day
Partly sunny, with a high near 82.
Monday Night
Mostly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 83.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers. Mostly sunny, with a high near 84.
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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:
9:16 pm CDT May 20, 2026
Forecast Valid:
10pm CDT May 20, 2026-6pm CDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation