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.

Overcast

52°F

11°C

Humidity 72%
Wind Speed N 6 mph
Barometer 29.95 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 14 Feb 2:47 pm CST
Extended Forecast for

Benton IL

  • This Afternoon

    This Afternoon: Showers. High near 54. East wind 5 to 7 mph. Chance of precipitation is 90%.

    High: 54 °F

    Showers

  • Tonight

    Tonight: Showers. Low around 46. East wind 5 to 7 mph. Chance of precipitation is 90%.

    Low: 46 °F

    Showers

  • Sunday

    Sunday: A 50 percent chance of showers, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 58. North wind 6 to 11 mph.

    High: 58 °F

    Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38. North wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 62. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. South wind around 6 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65. South wind 6 to 16 mph, with gusts as high as 23 mph.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 59. Breezy, with a south wind 17 to 20 mph, with gusts as high as 31 mph.

    Low: 59 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Partly sunny, with a high near 72. Southwest wind 13 to 18 mph, with gusts as high as 28 mph.

    High: 72 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Showers. High near 54. East wind 5 to 7 mph. Chance of precipitation is 90%.
Tonight
Showers. Low around 46. East wind 5 to 7 mph. Chance of precipitation is 90%.
Sunday
A 50 percent chance of showers, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 58. North wind 6 to 11 mph.
Sunday Night
Partly cloudy, with a low around 38. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 62. Calm wind becoming south 5 to 7 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 44. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 65. South wind 6 to 16 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 59. Breezy, with a south wind 17 to 20 mph, with gusts as high as 31 mph.
Wednesday
Partly sunny, with a high near 72. Southwest wind 13 to 18 mph, with gusts as high as 28 mph.
Wednesday Night
A slight chance of showers before midnight. Partly cloudy, with a low around 50. South southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday
A chance of showers. Mostly sunny, with a high near 71. South southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. South southwest wind 7 to 10 mph becoming west after midnight.
Friday
A slight chance of showers. Partly sunny, with a high near 58. West northwest wind 7 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
1:12 pm CST Feb 14, 2026
Forecast Valid:
3pm CST Feb 14, 2026-6pm CST Feb 20, 2026
 
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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