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Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Current conditions at

Centralia Municipal Airport (KENL)

Lat: 38.51°NLon: 89.09°WElev: 525ft.

Fair

80°F

27°C

Humidity 69%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 20 Aug 7:15 pm CDT
Extended Forecast for

Centralia IL

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 63. Light northeast wind.

    Low: 63 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 84. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63. Light north wind.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 63. Light northeast wind.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 85. Light and variable wind.
Friday Night
Mostly clear, with a low around 66. Calm wind.
Saturday
Mostly sunny, with a high near 84. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 63. Light north wind.
Sunday
Sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 66.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Centralia IL
 38.52°N 89.13°W (Elev. 495 ft)
Last Update:
5:56 pm CDT Aug 20, 2026
Forecast Valid:
7pm CDT Aug 20, 2026-6pm CDT Aug 27, 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