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.

Overcast

56°F

13°C

Humidity 70%
Wind Speed E 7 mph
Barometer 30.10 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 9 Apr 9:55 pm CDT
Extended Forecast for

Mark IL

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 50. Northeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers
    Likely then
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am. Cloudy, then gradually becoming mostly sunny, with a high near 59. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 59 °F

    Chance
    Showers then
    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. North wind around 5 mph becoming east after midnight.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 62. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 62 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 74. Breezy.

    High: 74 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Breezy.

    Low: 62 °F

    Chance
    T-storms and
    Breezy

  • Monday

    Monday: Mostly cloudy, with a high near 80.

    High: 80 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Low around 50. Northeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am. Cloudy, then gradually becoming mostly sunny, with a high near 59. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 39. North wind around 5 mph becoming east after midnight.
Saturday
Increasing clouds, with a high near 62. East wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 74. Breezy.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Breezy.
Monday
Mostly cloudy, with a high near 80.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 66.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers. Partly sunny, with a high near 74.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 76.
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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:
5:47 pm CDT Apr 9, 2026
Forecast Valid:
10pm CDT Apr 9, 2026-6pm CDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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