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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Benton IL

  • Overnight

    Overnight: Partly cloudy, with a low around 52. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradual clearing during the afternoon, with a high near 73. Southwest wind 8 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 73 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 44. West wind around 6 mph becoming calm in the evening.

    Low: 44 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 69. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 39. South wind 6 to 13 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 39 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers. Partly sunny, with a high near 45. Northwest wind 14 to 18 mph, with gusts as high as 25 mph.

    High: 45 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of rain and snow showers before 9pm, then a slight chance of snow showers. Partly cloudy, with a low around 25. Northwest wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 25 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Monday

    Monday: Sunny, with a high near 42. Northwest wind 10 to 18 mph, with gusts as high as 24 mph.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 25. West northwest wind 5 to 8 mph becoming light and variable.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 52. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Friday
Mostly cloudy, then gradual clearing during the afternoon, with a high near 73. Southwest wind 8 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Increasing clouds, with a low around 44. West wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 69. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Saturday Night
A 50 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 39. South wind 6 to 13 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 45. Northwest wind 14 to 18 mph, with gusts as high as 25 mph.
Sunday Night
A slight chance of rain and snow showers before 9pm, then a slight chance of snow showers. Partly cloudy, with a low around 25. Northwest wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 42. Northwest wind 10 to 18 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 25. West northwest wind 5 to 8 mph becoming light and variable.
Veterans Day
Mostly sunny, with a high near 52. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 40. Southwest wind 10 to 17 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 64. West wind 8 to 13 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 37. Northwest wind 3 to 6 mph.
Thursday
Sunny, with a high near 62. Light and variable wind becoming west 5 to 8 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:
1:52 am CST Nov 7, 2025
Forecast Valid:
2am CST Nov 7, 2025-6pm CST Nov 13, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation