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Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

72°F

22°C

Humidity 78%
Wind Speed SW 9 mph
Barometer 29.74 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 15 Apr 3:15 am CDT
Extended Forecast for

Mark IL

  • Overnight

    Overnight: Showers and thunderstorms likely, mainly after 4am. Mostly cloudy, with a steady temperature around 70. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 70 °F

    T-storms
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 5pm. Mostly cloudy, with a high near 75. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 61. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    T-storms
    Likely

  • Thursday

    Thursday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly sunny, with a high near 74. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 74 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers, with thunderstorms also possible after 7pm. Low around 49. Chance of precipitation is 90%.

    Low: 49 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers. Partly sunny, with a high near 62. Breezy.

    High: 62 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly after 4am. Mostly cloudy, with a steady temperature around 70. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely, mainly before 5pm. Mostly cloudy, with a high near 75. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 61. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly sunny, with a high near 74. West wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Thursday Night
Mostly clear, with a low around 55.
Friday
Partly sunny, with a high near 82.
Friday Night
Showers, with thunderstorms also possible after 7pm. Low around 49. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 62. Breezy.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 72.
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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:
2:57 am CDT Apr 15, 2026
Forecast Valid:
3am CDT Apr 15, 2026-6pm CDT Apr 21, 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