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

50°F

10°C

Humidity 85%
Wind Speed N 10 mph
Barometer 30.29 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 10 Apr 12:10 pm CDT
Extended Forecast for

Mark IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 59. North wind around 10 mph.

    High: 59 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 39. North wind around 5 mph becoming east after midnight.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after 1pm. Increasing clouds, with a high near 61. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 55. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Showers likely after 1pm. Mostly cloudy, with a high near 76. Breezy. Chance of precipitation is 60%.

    High: 76 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

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

    Low: 62 °F

    Chance
    Showers and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Monday Night

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

    Low: 66 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Partly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
Partly sunny, with a high near 59. North wind around 10 mph.
Tonight
Partly cloudy, with a low around 39. North wind around 5 mph becoming east after midnight.
Saturday
A 20 percent chance of showers after 1pm. Increasing clouds, with a high near 61. East wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 55. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Showers likely after 1pm. Mostly cloudy, with a high near 76. Breezy. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 62. Breezy.
Monday
Partly sunny, with a high near 80.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 66.
Tuesday
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 before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 55.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 77.
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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:
12:06 pm CDT Apr 10, 2026
Forecast Valid:
12pm CDT Apr 10, 2026-6pm CDT Apr 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