Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Centralia Municipal Airport (KENL)

Lat: 38.51°NLon: 89.09°WElev: 525ft.

Fair

72°F

22°C

Humidity 92%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 19 Aug 1:15 am CDT
Extended Forecast for

3 Miles E Okawville IL

  • Overnight

    Overnight: Showers and thunderstorms likely, mainly after 5am.  Clear early, then becoming cloudy, with a low around 69. Calm wind.  Chance of precipitation is 60%.

    Low: 69 °F

    T-storms
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms, mainly before 9am.  High near 81. Light and variable wind.  Chance of precipitation is 90%.

    High: 81 °F

    T-storms then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 1am.  Mostly cloudy, with a low around 68. Calm wind.  Chance of precipitation is 60%.

    Low: 68 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 83. Light north wind.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms.  Mostly clear, with a low around 66. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers, with thunderstorms also possible after 1pm.  Sunny, with a high near 85. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly after 5am. Clear early, then becoming cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms, mainly before 9am. High near 81. Light and variable wind. Chance of precipitation is 90%.
Wednesday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 83. Light north wind.
Thursday Night
Mostly clear, with a low around 64. Calm wind.
Friday
Sunny, with a high near 85.
Friday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 66. Chance of precipitation is 20%.
Saturday
A slight chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 85. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 82.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 64.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 84.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Okawville IL
 38.44°N 89.5°W (Elev. 449 ft)
1:21 am CDT Aug 19, 2026
1am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database