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Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Partly Cloudy

75°F

24°C

Humidity 100%
Wind Speed S 5 mph
Barometer 29.97 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Last update 10 Aug 11:22 pm CDT
Extended Forecast for

Illinois Valley Rgnl-Walter A Duncan Field Airport IL

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 71. Southeast wind around 5 mph.

    Low: 71 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly before noon. Some of the storms could be severe and produce heavy rainfall. High near 85. South wind 5 to 10 mph becoming north in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 85 °F

    Severe
    Thunderstorms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69. North wind around 5 mph becoming east southeast after midnight.

    Low: 69 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. East wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 10 mph. Chance of precipitation is 60%.

    High: 85 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 69. East northeast wind around 5 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.

    Low: 66 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers before 1pm. Mostly cloudy, with a high near 79.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 71. Southeast wind around 5 mph.
Tuesday
Showers and thunderstorms, mainly before noon. Some of the storms could be severe and produce heavy rainfall. High near 85. South wind 5 to 10 mph becoming north in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69. North wind around 5 mph becoming east southeast after midnight.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. East wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 10 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 69. East northeast wind around 5 mph. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Friday
A chance of showers before 1pm. Mostly cloudy, with a high near 79.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Saturday
A chance of showers before 1pm. Partly sunny, with a high near 83.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Sunday
A chance of showers. Partly sunny, with a high near 82.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 66.
Monday
Partly sunny, with a high near 77.
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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:
8:51 pm CDT Aug 10, 2026
Forecast Valid:
11pm CDT Aug 10, 2026-6pm CDT Aug 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation