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 86%
Wind Speed S 5 mph
Barometer 29.99 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 29 Jun 10:55 pm CDT
Extended Forecast for

Walnut Hill IL

Heat Advisory June 29, 11:09pm until July 3, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 29, 11:09pm until July 3, 10:00pm

    NOW until 10:00pm Fri

    Heat Advisory

  • Tonight

    Low: 74 °F

    Mostly Clear

  • Tuesday

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

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74. South wind around 6 mph becoming calm after midnight.

    Low: 74 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Heat index values as high as 106. Calm wind becoming south around 6 mph in the afternoon.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 76. South wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.

    Low: 76 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.

    High: 93 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 74. South wind 3 to 7 mph.
Tuesday
Sunny, with a high near 95. Heat index values as high as 109. South wind 3 to 7 mph.
Tuesday Night
Clear, with a low around 74. South wind around 6 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 95. Heat index values as high as 106. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 95.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Friday Night
Partly cloudy, with a low around 75.
Independence Day
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walnut Hill IL
 38.47°N 89.05°W (Elev. 554 ft)
Last Update:
9:01 pm CDT Jun 29, 2026
Forecast Valid:
11pm CDT Jun 29, 2026-6pm CDT Jul 6, 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