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.

Overcast

47°F

8°C

Humidity 60%
Wind Speed N 12 G 22 mph
Barometer 30.07 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 23 Mar 12:15 am CDT
Extended Forecast for

Benton IL

  • Overnight

    Overnight: Mostly clear, with a low around 36. North wind 10 to 16 mph, with gusts as high as 29 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 56. North northeast wind 11 to 14 mph, with gusts as high as 24 mph.

    High: 56 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. East northeast wind 6 to 8 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. East southeast wind 5 to 8 mph.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42. East wind around 6 mph becoming calm in the evening.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60. South wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 85. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 44. South southwest wind 11 to 14 mph becoming north after midnight. Winds could gust as high as 23 mph.

    Low: 44 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 36. North wind 10 to 16 mph, with gusts as high as 29 mph.
Monday
Mostly sunny, with a high near 56. North northeast wind 11 to 14 mph, with gusts as high as 24 mph.
Monday Night
Mostly cloudy, with a low around 37. East northeast wind 6 to 8 mph.
Tuesday
Partly sunny, with a high near 62. East southeast wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 42. East wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 73. Calm wind becoming south southwest 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 60. South wind 7 to 9 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 85. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 44. South southwest wind 11 to 14 mph becoming north after midnight. Winds could gust as high as 23 mph.
Friday
A chance of showers. Partly sunny, with a high near 54. North wind 13 to 15 mph, with gusts as high as 23 mph.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 32. North northeast wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 57. East northeast wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 37. East wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 66. South southwest wind 5 to 9 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
11:41 pm CDT Mar 22, 2026
Forecast Valid:
12am CDT Mar 23, 2026-6pm CDT Mar 29, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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