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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Centralia Municipal Airport (KENL)

Lat: 38.51°NLon: 89.09°WElev: 525ft.

Mostly Cloudy

73°F

23°C

Humidity 77%
Wind Speed NA
Barometer 30.15 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 28 Aug 8:35 am CDT
Extended Forecast for

Aviston IL

  • Today

    Today: Sunny, with a high near 86. Light north wind.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 87. Calm wind becoming south around 5 mph in the afternoon.

    High: 87 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 65. Light south wind.

    Low: 65 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 92. Light south wind increasing to 6 to 11 mph in the morning.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Today
Sunny, with a high near 86. Light north wind.
Tonight
Mostly clear, with a low around 63. Calm wind.
Saturday
Increasing clouds, with a high near 87. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 65. Light south wind.
Sunday
Sunny, with a high near 92. Light south wind increasing to 6 to 11 mph in the morning.
Sunday Night
Mostly clear, with a low around 72.
Monday
Sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny and hot, with a high near 97.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
A 20 percent chance of showers. Sunny and hot, with a high near 98.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Aviston IL
 38.6°N 89.61°W (Elev. 446 ft)
Last Update:
6:21 am CDT Aug 28, 2026
Forecast Valid:
8am CDT Aug 28, 2026-6pm CDT Sep 3, 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