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Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

64°F

18°C

Humidity 94%
Wind Speed S 5 mph
Barometer 29.89 in
Dewpoint 63°F (17°C)
Visibility 7.00 mi
Last update 17 May 4:20 am CDT
Extended Forecast for

Illinois Valley Rgnl-Walter A Duncan Field Airport IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southeast wind around 5 mph.

    Low: 65 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 10am. Partly sunny, with a high near 86. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers then
    Partly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 69 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 83. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely and
    Breezy

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    Low: 67 °F

    Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. Breezy. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of thunderstorms before 7pm. Mostly cloudy, with a low around 50. Chance of precipitation is 10%.

    Low: 50 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southeast wind around 5 mph.
Sunday
A chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 10am. Partly sunny, with a high near 86. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 69. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 83. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. Breezy. Chance of precipitation is 60%.
Tuesday Night
A slight chance of thunderstorms before 7pm. Mostly cloudy, with a low around 50. Chance of precipitation is 10%.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Partly sunny, with a high near 72.
Friday Night
Mostly cloudy, with a low around 53.
Saturday
Partly sunny, with a high near 78.
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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:
3:56 am CDT May 17, 2026
Forecast Valid:
4am CDT May 17, 2026-6pm CDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation