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.

Fair

50°F

10°C

Humidity 71%
Wind Speed SW 3 mph
Barometer 30.12 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 10 Nov 1:55 am CST
Extended Forecast for

Benton IL

  • Overnight

    Overnight: Clear, with a low around 43. Light southwest wind.

    Low: 43 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72. Calm wind becoming west around 6 mph.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Partly sunny, then gradually becoming sunny, with a high near 72. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 72 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. Northwest wind around 11 mph, with gusts as high as 18 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53. North northwest wind 11 to 17 mph, with gusts as high as 23 mph.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. North northwest wind 6 to 13 mph.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 47. North northwest wind 7 to 14 mph, with gusts as high as 18 mph.

    High: 47 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. North northwest wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 43. Light southwest wind.
Tuesday
Sunny, with a high near 72. Calm wind becoming west around 6 mph.
Tuesday Night
Mostly clear, with a low around 44. Calm wind.
Veterans Day
Partly sunny, then gradually becoming sunny, with a high near 72. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 42. Northwest wind around 11 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 53. North northwest wind 11 to 17 mph, with gusts as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 31. North northwest wind 6 to 13 mph.
Friday
Sunny, with a high near 47. North northwest wind 7 to 14 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 27. North northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 50. Light northwest wind.
Saturday Night
Mostly clear, with a low around 30. Calm wind.
Sunday
Mostly sunny, with a high near 54. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 34. Light east southeast wind.
Monday
Mostly sunny, with a high near 57. Calm wind becoming east southeast around 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38.02°N 88.93°W
Last Update:
12:35 am CST Nov 10, 2026
Forecast Valid:
2am CST Nov 10, 2026-6pm CST Nov 16, 2026
 
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Additional Resources

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Chance of Precipitation