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

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

70°F

21°C

Humidity 88%
Wind Speed N 5 mph
Barometer 29.98 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 27 Aug 6:47 am CDT
Extended Forecast for

Benton IL

  • Today

    Today: Sunny, with a high near 89. Calm wind becoming north northwest 5 to 9 mph in the morning.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. North wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming clear, with a low around 60. North northeast wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 91. Light and variable wind.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65. Light south southeast wind.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. Light south wind becoming south southwest 8 to 13 mph in the morning.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. South wind 3 to 8 mph.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 97. South southwest wind 5 to 13 mph.

    High: 97 °F

    Hot

Detailed Forecast

Today
Sunny, with a high near 89. Calm wind becoming north northwest 5 to 9 mph in the morning.
Tonight
Mostly clear, with a low around 64. North wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 89. Calm wind becoming north 5 to 7 mph in the afternoon.
Friday Night
Mostly cloudy, then gradually becoming clear, with a low around 60. North northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. Light and variable wind.
Saturday Night
Mostly clear, with a low around 65. Light south southeast wind.
Sunday
Sunny, with a high near 96. Light south wind becoming south southwest 8 to 13 mph in the morning.
Sunday Night
Mostly clear, with a low around 72. South wind 3 to 8 mph.
Monday
Sunny and hot, with a high near 97. South southwest wind 5 to 13 mph.
Monday Night
Mostly clear, with a low around 75. South wind 5 to 9 mph becoming light.
Tuesday
Sunny and hot, with a high near 98. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 76. South southwest wind 3 to 7 mph.
Wednesday
Sunny and hot, with a high near 98. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
2:05 am CDT Aug 27, 2026
Forecast Valid:
7am CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation