Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

64°F

18°C

Humidity 94%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 28 Aug 6:47 am CDT
Extended Forecast for

Carterville IL

  • Today

    Today: Sunny, with a high near 88. Calm wind becoming north northeast around 6 mph in the afternoon.

    High: 88 °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 90. Light and variable wind.

    High: 90 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 93. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. South wind 3 to 5 mph.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95. South wind 5 to 9 mph.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. South wind 3 to 6 mph.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96. South southwest wind 5 to 8 mph.

    High: 96 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 88. Calm wind becoming north northeast around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 63. Calm wind.
Saturday
Increasing clouds, with a high near 90. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 65. Calm wind.
Sunday
Sunny, with a high near 93. Calm wind becoming south southwest 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 72. South wind 3 to 5 mph.
Monday
Sunny, with a high near 95. South wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 73. South wind 3 to 6 mph.
Tuesday
Sunny, with a high near 96. South southwest wind 5 to 8 mph.
Tuesday Night
Mostly clear, with a low around 76. South wind 3 to 6 mph.
Wednesday
Sunny and hot, with a high near 97. South southwest wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 76. South wind 3 to 5 mph.
Thursday
A slight chance of showers. Sunny and hot, with a high near 98. Southwest wind 3 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Carterville IL
 37.76°N 89.09°W
5:41 am CDT Aug 28, 2026
7am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
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Additional Resources

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