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.

Partly Cloudy

55°F

13°C

Humidity 94%
Wind Speed S 12 mph
Barometer 29.89 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 18 Nov 8:47 am CST
Extended Forecast for

Benton IL

  • Today

    Today: Showers and thunderstorms likely, mainly before 4pm, then showers likely and possibly a thunderstorm after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 68. South southwest wind 7 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely

  • Tonight

    Tonight: A 40 percent chance of showers before 8pm. Increasing clouds, with a low around 51. Northwest wind around 6 mph becoming calm in the evening.

    Low: 51 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 62. North northwest wind around 6 mph becoming calm in the afternoon.

    High: 62 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers. High near 63. Calm wind becoming south southeast 5 to 8 mph in the morning. Chance of precipitation is 80%.

    High: 63 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 54. South southwest wind 3 to 5 mph. Chance of precipitation is 80%.

    Low: 54 °F

    Showers

  • Friday

    Friday: Showers. High near 63. East wind 6 to 10 mph becoming west southwest in the afternoon. Chance of precipitation is 80%.

    High: 63 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 45. North northeast wind around 7 mph.

    Low: 45 °F

    Showers
    Likely

  • Saturday

    Saturday: A slight chance of showers before noon. Mostly sunny, with a high near 59. North northeast wind 5 to 8 mph.

    High: 59 °F

    Slight Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 4pm, then showers likely and possibly a thunderstorm after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 68. South southwest wind 7 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tonight
A 40 percent chance of showers before 8pm. Increasing clouds, with a low around 51. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly cloudy, with a high near 62. North northwest wind around 6 mph becoming calm in the afternoon.
Wednesday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 49. Calm wind.
Thursday
Showers. High near 63. Calm wind becoming south southeast 5 to 8 mph in the morning. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm. Low around 54. South southwest wind 3 to 5 mph. Chance of precipitation is 80%.
Friday
Showers. High near 63. East wind 6 to 10 mph becoming west southwest in the afternoon. Chance of precipitation is 80%.
Friday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 45. North northeast wind around 7 mph.
Saturday
A slight chance of showers before noon. Mostly sunny, with a high near 59. North northeast wind 5 to 8 mph.
Saturday Night
Mostly clear, with a low around 40. Light and variable wind.
Sunday
Sunny, with a high near 61. Calm wind becoming west southwest 5 to 7 mph in the morning.
Sunday Night
Partly cloudy, with a low around 42. Southwest wind 3 to 5 mph.
Monday
A slight chance of showers. Partly sunny, with a high near 61. South wind 5 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:
8:41 am CST Nov 18, 2025
Forecast Valid:
8am CST Nov 18, 2025-6pm CST Nov 24, 2025
 
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Additional Resources

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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