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.

Light Snow

14°F

-10°C

Humidity 73%
Wind Speed W 18 G 26 mph
Barometer 30.15 in
Dewpoint 7°F (-14°C)
Visibility 7.00 mi
Wind Chill-3°F (-19°C)
Last update 17 Jan 9:39 pm CST
Extended Forecast for

Mark IL

  • Tonight

    Tonight: A 40 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 9. Wind chill values as low as -5. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 9 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: A chance of flurries between 11am and noon, then a chance of snow after noon. Mostly cloudy, with a high near 23. Wind chill values as low as -5. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 23 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow, mainly before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 1. Wind chill values as low as -20. Blustery, with a southwest wind 10 to 15 mph becoming northwest 20 to 25 mph after midnight. Winds could gust as high as 35 mph.

    Low: 1 °F

    Chance Snow
    and Breezy
    then Mostly
    Cloudy and
    Blustery

  • M.L.King Day

    M.L.King Day: Mostly sunny and cold, with a high near 10. Wind chill values as low as -20. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 10 °F

    Cold and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 4.

    Low: 4 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 9. Wind chill values as low as -5. West wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
A chance of flurries between 11am and noon, then a chance of snow after noon. Mostly cloudy, with a high near 23. Wind chill values as low as -5. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Sunday Night
A 30 percent chance of snow, mainly before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 1. Wind chill values as low as -20. Blustery, with a southwest wind 10 to 15 mph becoming northwest 20 to 25 mph after midnight. Winds could gust as high as 35 mph.
M.L.King Day
Mostly sunny and cold, with a high near 10. Wind chill values as low as -20. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 4.
Tuesday
Mostly sunny, with a high near 26.
Tuesday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 20.
Wednesday
Partly sunny, with a high near 31.
Wednesday Night
Partly cloudy, with a low around 12.
Thursday
Mostly sunny, with a high near 25.
Thursday Night
Mostly cloudy, with a low around 16.
Friday
Partly sunny, with a high near 29.
Friday Night
Mostly cloudy, with a low around 8.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 17.
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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:
9:06 pm CST Jan 17, 2026
Forecast Valid:
9pm CST Jan 17, 2026-6pm CST Jan 24, 2026
 
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