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

41°F

5°C

Humidity 93%
Wind Speed E 3 mph
Barometer 30.26 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 2 Nov 7:45 am CST
Extended Forecast for

Benton IL

  • Today

    Today: Mostly sunny, with a high near 56. East northeast wind around 5 mph becoming calm in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy frost after 1am. Otherwise, clear, with a low around 36. Light southwest wind.

    Low: 36 °F

    Clear then
    Patchy Frost

  • Monday

    Monday: Patchy frost before 7am. Otherwise, sunny, with a high near 64. Southwest wind 5 to 10 mph.

    High: 64 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67. Light south southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 18 mph.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49. South southwest wind 8 to 10 mph.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 71. Southwest wind 7 to 13 mph becoming west northwest in the afternoon.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43. West northwest wind around 6 mph becoming calm in the evening.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 68. Light and variable wind becoming south southeast 6 to 11 mph in the morning.

    High: 68 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 56. East northeast wind around 5 mph becoming calm in the afternoon.
Tonight
Patchy frost after 1am. Otherwise, clear, with a low around 36. Light southwest wind.
Monday
Patchy frost before 7am. Otherwise, sunny, with a high near 64. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 39. Calm wind.
Tuesday
Mostly sunny, with a high near 67. Light south southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 49. South southwest wind 8 to 10 mph.
Wednesday
Sunny, with a high near 71. Southwest wind 7 to 13 mph becoming west northwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 43. West northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 68. Light and variable wind becoming south southeast 6 to 11 mph in the morning.
Thursday Night
A chance of showers after midnight. Partly cloudy, with a low around 54. South wind 9 to 11 mph.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 69. West wind 9 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 46. West wind 5 to 7 mph.
Saturday
A slight chance of showers. Mostly sunny, with a high near 68. Southwest wind 7 to 14 mph, with gusts as high as 18 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:
8:21 am CST Nov 2, 2025
Forecast Valid:
8am CST Nov 2, 2025-6pm CST Nov 8, 2025
 
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