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.

Fog/Mist

52°F

11°C

Humidity 94%
Wind Speed N 8 mph
Barometer 30.07 in
Dewpoint 50°F (10°C)
Visibility 5.00 mi
Wind Chill49°F (9°C)
Last update 22 Nov 7:45 am CST
Extended Forecast for

Benton IL

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 58. North wind 3 to 7 mph.

    High: 58 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 60. Light and variable wind.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 42. Light southeast wind.

    Low: 42 °F

    Increasing
    Clouds

  • Monday

    Monday: A 50 percent chance of showers after noon. Mostly cloudy, with a high near 60. Light southeast wind becoming south southeast 5 to 9 mph in the morning.

    High: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers. Low around 52. South wind around 8 mph. Chance of precipitation is 100%.

    Low: 52 °F

    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before noon. Partly sunny, with a high near 66. South southwest wind 7 to 10 mph becoming west in the afternoon.

    High: 66 °F

    Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. Northwest wind 6 to 8 mph.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 51. West northwest wind 8 to 13 mph, with gusts as high as 18 mph.

    High: 51 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 58. North wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 40. Calm wind.
Sunday
Sunny, with a high near 60. Light and variable wind.
Sunday Night
Increasing clouds, with a low around 42. Light southeast wind.
Monday
A 50 percent chance of showers after noon. Mostly cloudy, with a high near 60. Light southeast wind becoming south southeast 5 to 9 mph in the morning.
Monday Night
Showers. Low around 52. South wind around 8 mph. Chance of precipitation is 100%.
Tuesday
A 30 percent chance of showers before noon. Partly sunny, with a high near 66. South southwest wind 7 to 10 mph becoming west in the afternoon.
Tuesday Night
Partly cloudy, with a low around 38. Northwest wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 51. West northwest wind 8 to 13 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 30. West wind 3 to 6 mph.
Thanksgiving Day
Mostly sunny, with a high near 47. West wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 28. West wind around 5 mph becoming calm.
Friday
Mostly sunny, with a high near 47. West wind 5 to 8 mph becoming south southwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
3:41 am CST Nov 22, 2025
Forecast Valid:
8am CST Nov 22, 2025-6pm CST Nov 28, 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