National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Centralia Municipal Airport (KENL)

Lat: 38.51°NLon: 89.09°WElev: 525ft.

Fair

79°F

26°C

Humidity 36%
Wind Speed S 6 mph
Barometer 30.06 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 29 Sep 10:55 am CDT
Extended Forecast for

Walnut Hill IL

  • Today

    Today: Sunny, with a high near 84. South wind around 6 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 60. South wind 3 to 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 89. South wind 6 to 10 mph.

    High: 89 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 68. South wind 5 to 7 mph.

    Low: 68 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 90. Southwest wind 7 to 16 mph.

    High: 90 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.

    Low: 66 °F

    Chance
    Showers

  • Friday

    Friday: Showers. High near 77. Chance of precipitation is 80%.

    High: 77 °F

    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers. Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 84. South wind around 6 mph.
Tonight
Partly cloudy, with a low around 60. South wind 3 to 5 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 89. South wind 6 to 10 mph.
Wednesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 68. South wind 5 to 7 mph.
Thursday
Partly sunny, with a high near 90. Southwest wind 7 to 16 mph.
Thursday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Friday
Showers. High near 77. Chance of precipitation is 80%.
Friday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 57.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 71.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 58.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Walnut Hill IL
 38.47°N 89.05°W (Elev. 554 ft)
Last Update:
5:46 am CDT Sep 29, 2026
Forecast Valid:
11am CDT Sep 29, 2026-6pm CDT Oct 5, 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