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: Mostly cloudy, with a temperature rising to around 58 by 4am. South southwest wind 7 to 14 mph, with gusts as high as 24 mph.

    Low: 53 °F⇑

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers between 7am and 9am. Mostly cloudy through mid morning, then gradual clearing, with a high near 73. South southwest wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.

    High: 73 °F

    Slight Chance
    Showers then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. West wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 69. Calm wind becoming south southwest 5 to 9 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 37. South wind 7 to 15 mph becoming northwest after midnight. Winds could gust as high as 22 mph.

    Low: 37 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 44. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 26 mph.

    High: 44 °F

    Partly Sunny
    and Breezy
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 42. Northwest wind 8 to 15 mph, with gusts as high as 21 mph.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 25. Light and variable wind becoming southwest 5 to 7 mph after midnight.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a temperature rising to around 58 by 4am. South southwest wind 7 to 14 mph, with gusts as high as 24 mph.
Friday
A slight chance of showers between 7am and 9am. Mostly cloudy through mid morning, then gradual clearing, with a high near 73. South southwest wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 44. West wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 69. Calm wind becoming south southwest 5 to 9 mph in the afternoon.
Saturday Night
A 50 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 37. South wind 7 to 15 mph becoming northwest after midnight. Winds could gust as high as 22 mph.
Sunday
Mostly sunny, with a high near 44. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 25. Northwest wind 8 to 14 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 42. Northwest wind 8 to 15 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 25. Light and variable wind becoming southwest 5 to 7 mph after midnight.
Veterans Day
Mostly sunny, with a high near 52. South southwest wind 8 to 18 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 41. Southwest wind 10 to 17 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 64. West wind 8 to 13 mph.
Wednesday Night
Mostly clear, with a low around 38. West wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 63. West wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
9:07 pm CST Nov 6, 2025
Forecast Valid:
12am CST Nov 7, 2025-6pm CST Nov 13, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation