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 Rain

46°F

8°C

Humidity 99%
Wind Speed NW 9 mph
Barometer 29.63 in
Dewpoint 46°F (8°C)
Visibility 7.00 mi
Wind Chill41°F (5°C)
Last update 11 Mar 3:10 am CDT
Extended Forecast for

Mark IL

  • Overnight

    Overnight: Occasional showers. Steady temperature around 52. West wind around 10 mph. Chance of precipitation is 80%.

    Low: 52 °F

    Showers

  • Wednesday

    Wednesday: Rain likely, mainly before 3pm. Cloudy, with a temperature falling to around 38 by noon. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 44 °F⇓

    Rain Likely
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 27. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.

    Low: 27 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Increasing clouds, with a high near 49. West wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 49 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 39. Breezy.

    Low: 39 °F

    Chance Rain
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 49. Breezy.

    High: 49 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 44.

    High: 44 °F

    Cloudy

  • Saturday Night

    Saturday Night: A chance of rain and snow before 1am, then a chance of rain. Cloudy, with a low around 37. Chance of precipitation is 50%.

    Low: 37 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Occasional showers. Steady temperature around 52. West wind around 10 mph. Chance of precipitation is 80%.
Wednesday
Rain likely, mainly before 3pm. Cloudy, with a temperature falling to around 38 by noon. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Wednesday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 27. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.
Thursday
Increasing clouds, with a high near 49. West wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39. Breezy.
Friday
Mostly sunny, with a high near 49. Breezy.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
Cloudy, with a high near 44.
Saturday Night
A chance of rain and snow before 1am, then a chance of rain. Cloudy, with a low around 37. Chance of precipitation is 50%.
Sunday
Rain. High near 50. Breezy. Chance of precipitation is 90%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 16. Blustery. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 28. Blustery.
Monday Night
Mostly clear, with a low around 12.
Tuesday
Partly sunny, with a high near 32.
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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:
2:26 am CDT Mar 11, 2026
Forecast Valid:
3am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
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