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.

Fog

56°F

13°C

Humidity 98%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 55°F (13°C)
Visibility 0.25 mi
Last update 24 Aug 6:15 am CDT
Extended Forecast for

2 Miles ESE Benton IL

  • Today

    Today: Sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. Light east northeast wind.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Calm wind becoming east around 5 mph in the afternoon.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64. Light and variable wind.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 90. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 90 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 67. Calm wind. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 89. Calm wind becoming north northwest 5 to 9 mph in the afternoon.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Light north wind.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Calm wind becoming north around 6 mph in the afternoon.

    High: 89 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 61. Light east northeast wind.
Tuesday
Sunny, with a high near 87. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 64. Light and variable wind.
Wednesday
Mostly sunny, with a high near 90. Calm wind becoming west southwest around 6 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 67. Calm wind. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 89. Calm wind becoming north northwest 5 to 9 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 65. Light north wind.
Friday
Sunny, with a high near 89. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 66. Light and variable wind.
Saturday
Mostly sunny, with a high near 92. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 94. Light south wind becoming south southwest 5 to 10 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Benton IL
 38°N 88.88°W
Last Update:
4:01 am CDT Aug 24, 2026
Forecast Valid:
6am CDT Aug 24, 2026-6pm CDT Aug 30, 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