Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

Centralia Municipal Airport (KENL)

Lat: 38.51°NLon: 89.09°WElev: 525ft.

Fair

83°F

28°C

Humidity 59%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 4 Aug 11:15 am CDT
Extended Forecast for

Nashville IL

  • Today

    Today: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. Light southeast wind.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 70. Calm wind becoming southeast around 5 mph.

    Low: 70 °F

    Partly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm.  Partly sunny, with a high near 87. Light southwest wind.  Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a high near 87.

    High: 87 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 88.

    High: 88 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 86. Calm wind.
Tonight
Mostly clear, with a low around 65. Light southeast wind.
Wednesday
Sunny, with a high near 89. Calm wind.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Calm wind becoming southeast around 5 mph.
Thursday
Showers likely and possibly a thunderstorm before 1pm. Partly sunny, with a high near 87. Light southwest wind. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 72.
Monday
Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Nashville IL
 38.35°N 89.39°W (Elev. 486 ft)
9:01 am CDT Aug 4, 2026
11am CDT Aug 4, 2026-6pm CDT Aug 10, 2026
 
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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