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.

Partly Cloudy

47°F

8°C

Humidity 65%
Wind Speed SW 9 mph
Barometer 30.18 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 5 Apr 11:30 pm CDT
Extended Forecast for

Mark IL

  • Tonight

    Tonight: A slight chance of showers between midnight and 1am. Partly cloudy, with a low around 36. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 51. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27. Northwest wind 10 to 15 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 46 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 68. Breezy.

    High: 68 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 70.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers between midnight and 1am. Partly cloudy, with a low around 36. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 51. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 27. Northwest wind 10 to 15 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 46. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 68. Breezy.
Wednesday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 54.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 70.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 48.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 64.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 46.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 69.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 56.
Sunday
Showers likely. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mark IL
 41.26°N 89.26°W (Elev. 699 ft)
Last Update:
7:17 pm CDT Apr 5, 2026
Forecast Valid:
11pm CDT Apr 5, 2026-6pm CDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation