National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Overcast

61°F

16°C

Humidity 94%
Wind Speed SW 9 mph
Barometer 29.76 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 7 Mar 2:50 am CST
Extended Forecast for

Mark IL

  • Overnight

    Overnight: Rain and possibly a thunderstorm. Low around 58. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    Low: 58 °F

    Rain and
    Breezy

  • Saturday

    Saturday: Rain and thunderstorms likely before 10am, then a slight chance of rain between 10am and noon. Cloudy, with a temperature falling to around 46 by 5pm. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 59 °F⇓

    Breezy. Rain
    Likely then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 63. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 63 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain likely after noon. Mostly sunny, with a high near 72. Chance of precipitation is 70%.

    High: 72 °F

    Sunny then
    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain. Low around 40. Chance of precipitation is 90%.

    Low: 40 °F

    Rain

Detailed Forecast

Overnight
Rain and possibly a thunderstorm. Low around 58. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Saturday
Rain and thunderstorms likely before 10am, then a slight chance of rain between 10am and noon. Cloudy, with a temperature falling to around 46 by 5pm. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 34. West wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 63. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Clear, with a low around 46.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Rain likely after noon. Mostly sunny, with a high near 72. Chance of precipitation is 70%.
Tuesday Night
Rain. Low around 40. Chance of precipitation is 90%.
Wednesday
A 50 percent chance of rain before noon. Cloudy, with a high near 50.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 37.
Friday
Mostly cloudy, with a high near 57. 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:
2:07 am CST Mar 7, 2026
Forecast Valid:
3am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation