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.

Fair

65°F

18°C

Humidity 98%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 28 Aug 1:15 am CDT
Extended Forecast for

Benton ILSimilar City Names

  • Overnight

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

    Low: 64 °F

    Mostly Clear

  • Friday

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

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. Light east northeast wind.

    Low: 63 °F

    Mostly Clear

  • Saturday

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

    High: 91 °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 95. Light south southeast wind becoming south southwest 8 to 13 mph in the morning.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. South wind around 6 mph.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 97. South southwest wind 5 to 10 mph.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South wind 3 to 7 mph.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 64. Calm wind.
Friday
Sunny, with a high near 89. Calm wind becoming north northeast 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 63. Light east northeast wind.
Saturday
Increasing clouds, with a high near 91. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 65. Calm wind.
Sunday
Sunny, with a high near 95. Light south southeast wind becoming south southwest 8 to 13 mph in the morning.
Sunday Night
Mostly clear, with a low around 72. South wind around 6 mph.
Monday
Sunny and hot, with a high near 97. South southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 75. South wind 3 to 7 mph.
Tuesday
Sunny and hot, with a high near 98. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
Tuesday Night
Mostly clear, with a low around 76. South southwest wind 3 to 7 mph.
Wednesday
Sunny and hot, with a high near 99. Southwest wind 3 to 8 mph.
Wednesday Night
Mostly clear, with a low around 77. South southwest wind around 5 mph becoming calm in the evening.
Thursday
A slight chance of showers. Sunny and hot, with a high near 100. West southwest wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Benton ILSimilar City Names
 38°N 88.93°W
Last Update:
1:26 am CDT Aug 28, 2026
Forecast Valid:
1am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
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Additional Resources

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