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.

Fair

42°F

6°C

Humidity 42%
Wind Speed E 7 mph
Barometer 30.48 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 7 Apr 1:15 pm CDT
Extended Forecast for

Mark IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 45. East wind around 10 mph.

    High: 45 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 69 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 53. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely and
    Breezy

  • Thursday

    Thursday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers. Low around 48. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 48 °F

    Showers

  • Friday

    Friday: A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 61.

    High: 61 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 45. East wind around 10 mph.
Tonight
Mostly cloudy, with a low around 39. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 69. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 53. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 68.
Thursday Night
Showers. Low around 48. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 61.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 55.
Sunday
A 30 percent chance of showers. Mostly cloudy, with a high near 78.
Sunday Night
Showers likely. Mostly cloudy, with a low around 64. Breezy. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 81. Breezy.
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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:
1:26 pm CDT Apr 7, 2026
Forecast Valid:
1pm CDT Apr 7, 2026-6pm CDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation