Arctic Front Brings Winter Weather and Colder Temperatures to the Eastern U.S.

A series of cold fronts will bring heavy lake effect snow to the northern Great Lakes. The fronts will merge over the Ohio Valley and bring colder temperatures east of the Mississippi River later today into the end of the week. Additionally, wintry weather will develop over the Ohio Valley, Appalachians, and Northeast as rain switches over to snow tonight into Thursday morning. Read More >

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

23°F

-5°C

Humidity 54%
Wind Speed NW 14 G 22 mph
Barometer 30.05 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 14 Jan 6:59 pm CST
Extended Forecast for

Mark IL

  • Tonight

    Tonight: Clear, with a low around 14. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 14 °F

    Clear

  • Thursday

    Thursday: A 20 percent chance of snow after 5pm.  Increasing clouds, with a high near 27. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 27 °F

    Sunny then
    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Snow.  Temperature rising to around 30 by 5am. South wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Snow

  • Friday

    Friday: A 30 percent chance of snow showers after noon.  Mostly cloudy, with a high near 37. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 37 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Snow Showers

  • Friday Night

    Friday Night: A 30 percent chance of snow.  Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 16.

    High: 16 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 5.

    Low: 5 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 18.

    High: 18 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 7.

    Low: 7 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 14. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Thursday
A 20 percent chance of snow after 5pm. Increasing clouds, with a high near 27. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Snow. Temperature rising to around 30 by 5am. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday
A 30 percent chance of snow showers after noon. Mostly cloudy, with a high near 37. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 12.
Saturday
Mostly cloudy, with a high near 16.
Saturday Night
Mostly cloudy, with a low around 5.
Sunday
Partly sunny, with a high near 18.
Sunday Night
Mostly cloudy, with a low around 7.
M.L.King Day
Mostly sunny, with a high near 14.
Monday Night
Mostly clear, with a low around 3.
Tuesday
Mostly sunny, with a high near 20.
Tuesday Night
Mostly cloudy, with a low around 12.
Wednesday
Partly sunny, with a high near 28.
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ABOUT THIS FORECAST

 
Point Forecast:
Mark IL
 41.26°N 89.26°W (Elev. 699 ft)
6:36 pm CST Jan 14, 2026
7pm CST Jan 14, 2026-6pm CST Jan 21, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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