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 36. Calm wind.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 47. South southeast wind 3 to 6 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 74. South southwest wind 6 to 11 mph.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. South southwest wind 7 to 9 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 76. Southwest wind 10 to 17 mph, with gusts as high as 23 mph.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47. Southwest wind 6 to 13 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62. North northwest wind 5 to 8 mph.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Light and variable wind.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 36. Calm wind.
Thursday
Mostly sunny, with a high near 66. Calm wind becoming south 5 to 7 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 47. South southeast wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 74. South southwest wind 6 to 11 mph.
Friday Night
Mostly clear, with a low around 58. South southwest wind 7 to 9 mph.
Saturday
Mostly sunny, with a high near 76. Southwest wind 10 to 17 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 47. Southwest wind 6 to 13 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 62. North northwest wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 39. Light and variable wind.
Monday
A slight chance of showers after noon. Mostly sunny, with a high near 61. Light east wind becoming east southeast 5 to 10 mph in the morning.
Monday Night
Showers likely. Mostly cloudy, with a low around 47. Southeast wind 7 to 10 mph.
Tuesday
A chance of showers. Mostly sunny, with a high near 61. South wind 9 to 13 mph becoming west in the afternoon.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 45. West wind 5 to 8 mph becoming north after midnight.
Wednesday
A chance of showers. Mostly cloudy, with a high near 59. North northeast wind 6 to 8 mph becoming south southwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
3:16 am CST Nov 13, 2025
Forecast Valid:
3am CST Nov 13, 2025-6pm CST Nov 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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