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

A Wintry Mix in the Northeast; Rain and High Elevation Snow Returns to California

A clipper system tracking across the U.S./Canadian border will bring snowfall and mixed precipitation across the Northeast. A modest atmospheric river associated with a Pacific system will bring lower elevation/coastal rain, high elevation snow/wintry mix, and gusty winds in California into the Intermountain West. Read More >

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

39°F

4°C

Humidity 65%
Wind Speed S 16 mph
Barometer 29.88 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 9 Feb 10:21 pm CST
Extended Forecast for

Mark IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a steady temperature around 38. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. West wind 10 to 15 mph becoming north in the morning. Winds could gust as high as 25 mph.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25. Northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 43. Northwest wind 5 to 10 mph.

    High: 43 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 42.

    High: 42 °F

    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a steady temperature around 38. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 47. West wind 10 to 15 mph becoming north in the morning. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 25. Northwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 43. Northwest wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Cloudy, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Mostly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 45.
Saturday Night
Rain likely. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Sunday
A 40 percent chance of rain. Mostly sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 30.
Washington's Birthday
Mostly cloudy, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mark IL
 41.26°N 89.26°W (Elev. 699 ft)
Last Update:
10:36 pm CST Feb 9, 2026
Forecast Valid:
10pm CST Feb 9, 2026-6pm CST Feb 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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