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Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

60°F

16°C

Humidity 80%
Wind Speed SE 6 mph
Barometer 29.90 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 17 Apr 2:55 am CDT
Extended Forecast for

Mark IL

  • Overnight

    Overnight: Clear, with a low around 55. Southeast wind around 5 mph.

    Low: 55 °F

    Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 83. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 83 °F

    Partly Sunny
    then Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: Showers and thunderstorms before 2am, then showers likely. Some of the storms could produce heavy rainfall. Low around 41. Breezy, with a south wind 15 to 20 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 41 °F

    Heavy Rain
    and Breezy

  • Saturday

    Saturday: A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 50. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph.

    High: 50 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 4am. Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: Widespread frost before 7am. Otherwise, mostly sunny, with a high near 54.

    High: 54 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 3am. Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 60.

    High: 60 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 55. Southeast wind around 5 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 83. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Friday Night
Showers and thunderstorms before 2am, then showers likely. Some of the storms could produce heavy rainfall. Low around 41. Breezy, with a south wind 15 to 20 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday
A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 50. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph.
Saturday Night
Areas of frost after 4am. Otherwise, mostly clear, with a low around 34.
Sunday
Widespread frost before 7am. Otherwise, mostly sunny, with a high near 54.
Sunday Night
Areas of frost after 3am. Otherwise, mostly clear, with a low around 34.
Monday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mark IL
 41.26°N 89.26°W (Elev. 699 ft)
Last Update:
1:56 am CDT Apr 17, 2026
Forecast Valid:
3am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation