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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

72°F

22°C

Humidity 77%
Wind Speed SW 17 G 26 mph
Barometer 29.77 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 11 Mar 3:15 am CDT
Extended Forecast for

Benton IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a steady temperature around 71. Southwest wind 11 to 15 mph, with gusts as high as 29 mph.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms before 4pm, then a chance of showers. Temperature falling to around 50 by 5pm. Breezy, with a southwest wind 13 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%.

    High: 68 °F⇓

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 33. North northwest wind 10 to 18 mph, with gusts as high as 30 mph.

    Low: 33 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 54. North northwest wind 5 to 8 mph becoming west southwest in the afternoon.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Breezy, with a south wind 7 to 12 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 24 mph.

    Low: 42 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 63. Southwest wind 13 to 16 mph, with gusts as high as 26 mph.

    High: 63 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. Northwest wind around 6 mph becoming light and variable.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66. East wind 6 to 10 mph becoming south southeast in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53. South wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a steady temperature around 71. Southwest wind 11 to 15 mph, with gusts as high as 29 mph.
Wednesday
Showers and thunderstorms before 4pm, then a chance of showers. Temperature falling to around 50 by 5pm. Breezy, with a southwest wind 13 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 33. North northwest wind 10 to 18 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 54. North northwest wind 5 to 8 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 42. Breezy, with a south wind 7 to 12 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 24 mph.
Friday
Partly sunny, with a high near 63. Southwest wind 13 to 16 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 38. Northwest wind around 6 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 66. East wind 6 to 10 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 53. South wind 8 to 14 mph, with gusts as high as 23 mph.
Sunday
A chance of showers and thunderstorms, then showers likely after 1pm. Mostly cloudy, with a high near 69. Breezy, with a south wind 16 to 23 mph, with gusts as high as 32 mph.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 28. Blustery, with a northwest wind 20 to 23 mph, with gusts as high as 32 mph.
Monday
Sunny, with a high near 40. Northwest wind around 17 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 21. North northwest wind 6 to 11 mph.
Tuesday
Partly sunny, with a high near 44. West northwest wind 5 to 9 mph becoming southwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
3:26 am CDT Mar 11, 2026
Forecast Valid:
3am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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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