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.

Fair

61°F

16°C

Humidity 55%
Wind Speed SW 3 mph
Barometer 30.27 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 3 Nov 4:45 pm CST
Extended Forecast for

Benton IL

  • Tonight

    Tonight: Patchy fog between 2am and 4am. Otherwise, mostly clear, with a low around 40. Light and variable wind.

    Low: 40 °F

    Patchy Fog

  • Tuesday

    Tuesday: Sunny, with a high near 68. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 21 mph.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51. Southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 73. Southwest wind 7 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 42. Northwest wind around 6 mph becoming calm in the evening.

    Low: 42 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 66. East wind 5 to 11 mph becoming south southeast in the afternoon.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after midnight. Partly cloudy, with a low around 53. South southwest wind 10 to 14 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A chance of showers before noon. Mostly sunny, with a high near 70. South southwest wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 70 °F

    Chance
    Showers then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. West northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog between 2am and 4am. Otherwise, mostly clear, with a low around 40. Light and variable wind.
Tuesday
Sunny, with a high near 68. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 51. Southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 73. Southwest wind 7 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Clear, with a low around 42. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 66. East wind 5 to 11 mph becoming south southeast in the afternoon.
Thursday Night
A 40 percent chance of showers after midnight. Partly cloudy, with a low around 53. South southwest wind 10 to 14 mph, with gusts as high as 20 mph.
Friday
A chance of showers before noon. Mostly sunny, with a high near 70. South southwest wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Partly cloudy, with a low around 42. West northwest wind 5 to 8 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 65. Light and variable wind becoming south southwest 5 to 10 mph in the morning.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 43. South wind around 9 mph becoming west northwest after midnight.
Sunday
Mostly sunny, with a high near 55. Northwest wind 10 to 15 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 31. Northwest wind 5 to 10 mph.
Monday
Sunny, with a high near 50. West northwest wind 6 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
3:16 pm CST Nov 3, 2025
Forecast Valid:
5pm CST Nov 3, 2025-6pm CST Nov 10, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation