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

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

60°F

16°C

Humidity 49%
Wind Speed W 8 mph
Barometer 29.62 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 7 Nov 4:35 pm CST
Extended Forecast for

Mark IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 65. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 39. West wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Rain, mainly after 1pm. High near 47. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 100%.

    High: 47 °F

    Slight Chance
    Rain then
    Rain

  • Saturday Night

    Saturday Night: Rain before 10pm, then a chance of rain and snow between 10pm and 3am, then a chance of snow after 3am. Low around 29. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 65. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 39. West wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Saturday
Rain, mainly after 1pm. High near 47. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 100%.
Saturday Night
Rain before 10pm, then a chance of rain and snow between 10pm and 3am, then a chance of snow after 3am. Low around 29. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 23.
Monday
Sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 25.
Veterans Day
Partly sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Sunny, with a high near 54.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mark IL
 41.26°N 89.24°W (Elev. 699 ft)
Last Update:
4:26 pm CST Nov 7, 2025
Forecast Valid:
4pm CST Nov 7, 2025-6pm CST Nov 13, 2025
 
Forecast Discussion
 
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Additional Resources

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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