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Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

55°F

13°C

Humidity 79%
Wind Speed S 8 mph
Barometer 29.73 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 26 Mar 4:10 am CDT
Extended Forecast for

Mark IL

  • Today

    Today: A slight chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 81. Southwest wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    High: 81 °F

    Mostly Sunny
    then T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Low around 31. Blustery, with a northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 31 °F

    Blustery.
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 48. North wind around 15 mph, with gusts as high as 25 mph.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Clear, with a low around 26. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 81. Southwest wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Low around 31. Blustery, with a northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Mostly sunny, with a high near 48. North wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Clear, with a low around 26. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 51.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 75.
Monday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Tuesday
Rain and thunderstorms likely. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Tuesday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 57.
Wednesday
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 73. Breezy.
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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:
2:41 am CDT Mar 26, 2026
Forecast Valid:
4am CDT Mar 26, 2026-6pm CDT Apr 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation