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

Hazardous Weather Conditions

Current conditions at

Centralia Municipal Airport (KENL)

Lat: 38.51°NLon: 89.09°WElev: 525ft.

Fair

81°F

27°C

Humidity 85%
Wind Speed S 8 mph
Barometer 30.02 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 29 Jun 7:55 am CDT
Extended Forecast for

Walnut Hill IL

Heat Advisory June 29, 08:18am until July 3, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 29, 08:18am until July 3, 10:00pm

    NOW until 10:00pm Fri

    Heat Advisory

  • Today

    High: 94 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 76. South wind 5 to 10 mph becoming light after midnight.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. Heat index values as high as 109. Southwest wind 3 to 7 mph.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74. South wind 5 to 7 mph becoming calm after midnight.

    Low: 74 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 76.

    Low: 76 °F

    Clear

  • Thursday

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

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny, with a high near 94. Heat index values as high as 109. South wind 6 to 11 mph.
Tonight
Mostly clear, with a low around 76. South wind 5 to 10 mph becoming light after midnight.
Tuesday
Sunny, with a high near 95. Heat index values as high as 109. Southwest wind 3 to 7 mph.
Tuesday Night
Clear, with a low around 74. South wind 5 to 7 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 96. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 76.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Mostly clear, with a low around 77.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Friday Night
Partly cloudy, with a low around 76.
Independence Day
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Saturday Night
A 20 percent chance of showers. Mostly clear, with a low around 75.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walnut Hill IL
 38.49°N 89.05°W (Elev. 525 ft)
Last Update:
7:36 am CDT Jun 29, 2026
Forecast Valid:
8am CDT Jun 29, 2026-6pm CDT Jul 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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