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

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

N/A

Humidity NA
Wind Speed N 3 mph
Barometer 29.99 in
Dewpoint N/A
Visibility 10.00 mi
Last update 20 Aug 5:15 am CDT
Extended Forecast for

Benton IL

  • Today

    Today: Mostly sunny, with a high near 90. North northeast wind 6 to 11 mph.

    High: 90 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 66. North northeast wind 5 to 10 mph.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 88. North northeast wind 6 to 11 mph.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. North northeast wind 5 to 9 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. North northeast wind 3 to 8 mph.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 92. Calm wind becoming north northwest 5 to 8 mph in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63. North wind 3 to 6 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87. Light north wind becoming north northwest 5 to 10 mph in the morning.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 90. North northeast wind 6 to 11 mph.
Tonight
Mostly clear, with a low around 66. North northeast wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 88. North northeast wind 6 to 11 mph.
Thursday Night
Mostly clear, with a low around 65. North northeast wind 5 to 9 mph becoming calm in the evening.
Friday
Sunny, with a high near 90. North northeast wind 3 to 8 mph.
Friday Night
Mostly clear, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 92. Calm wind becoming north northwest 5 to 8 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 63. North wind 3 to 6 mph.
Sunday
Sunny, with a high near 87. Light north wind becoming north northwest 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 58. North northwest wind 5 to 8 mph becoming calm in the evening.
Monday
Sunny, with a high near 81. Light north northwest wind increasing to 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 55. North northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 81. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
4:30 am CDT Aug 20, 2025
Forecast Valid:
5am CDT Aug 20, 2025-6pm CDT Aug 26, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation