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.

Mostly Cloudy

31°C

88°F

Humidity 62%
Wind Speed S 28 km/h
Barometer 30.00 in
Dewpoint 23°C (73°F)
Visibility 16 km
Heat Index36°C (96°F)
Last update 13 Jul 1:48 pm CDT
Extended Forecast for

Benton IL

  • This Afternoon

    This Afternoon: Showers and thunderstorms. High near 32. South southwest wind 10 to 13 km/h. Chance of precipitation is 80%.

    High: 32 °C

    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 10pm. Cloudy, with a low around 22. South southwest wind 5 to 10 km/h becoming calm in the evening. Chance of precipitation is 60%.

    Low: 22 °C

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 31. Calm wind becoming south southwest 5 to 8 km/h in the afternoon.

    High: 31 °C

    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 20%.

    Low: 23 °C

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 33. Light south southeast wind becoming south southwest 6 to 11 km/h in the morning.

    High: 33 °C

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 23. South wind 3 to 8 km/h.

    Low: 23 °C

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 33. Southwest wind 5 to 14 km/h. Chance of precipitation is 40%.

    High: 33 °C

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 24. South southwest wind 5 to 10 km/h.

    Low: 24 °C

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 34. Southwest wind 8 to 13 km/h.

    High: 34 °C

    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms. High near 32. South southwest wind 10 to 13 km/h. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms likely, mainly before 10pm. Cloudy, with a low around 22. South southwest wind 5 to 10 km/h becoming calm in the evening. Chance of precipitation is 60%.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 31. Calm wind becoming south southwest 5 to 8 km/h in the afternoon.
Monday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 20%.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 33. Light south southeast wind becoming south southwest 6 to 11 km/h in the morning.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 23. South wind 3 to 8 km/h.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 33. Southwest wind 5 to 14 km/h. Chance of precipitation is 40%.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 24. South southwest wind 5 to 10 km/h.
Thursday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 34. Southwest wind 8 to 13 km/h.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 24. South southwest wind 5 to 10 km/h.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 34. West southwest wind 5 to 11 km/h.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 23. West wind 5 to 8 km/h becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 33. Calm wind becoming southwest 5 to 10 km/h in the morning.
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:
2:17 pm CDT Jul 13, 2025
Forecast Valid:
2pm CDT Jul 13, 2025-6pm CDT Jul 19, 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