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Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

53°F

12°C

Humidity 86%
Wind Speed SW 13 mph
Barometer 29.49 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 18 Feb 7:15 am CST
Extended Forecast for

Illinois Valley Rgnl-Walter A Duncan Field Airport IL

Red Flag Warning February 18, 10:00am until February 18, 08:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: Sunny, with a high near 66. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph.

    High: 66 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 41. Southwest wind 5 to 15 mph becoming east southeast after midnight. Winds could gust as high as 20 mph.

    Low: 41 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 64. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 33. Breezy, with a south southeast wind 10 to 15 mph becoming west 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 33 °F

    Rain Likely
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 40. Breezy, with a west wind 15 to 25 mph, with gusts as high as 30 mph.

    High: 40 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A chance of snow before midnight. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 66. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph.
Tonight
Increasing clouds, with a low around 41. Southwest wind 5 to 15 mph becoming east southeast after midnight. Winds could gust as high as 20 mph.
Thursday
Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 64. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 33. Breezy, with a south southeast wind 10 to 15 mph becoming west 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 40. Breezy, with a west wind 15 to 25 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 23.
Saturday
A 20 percent chance of snow after noon. Partly sunny, with a high near 36.
Saturday Night
A chance of snow before midnight. Mostly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 16.
Monday
Sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Partly sunny, with a high near 40.
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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:
4:11 am CST Feb 18, 2026
Forecast Valid:
7am CST Feb 18, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation