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.

Overcast

56°F

13°C

Humidity 81%
Wind Speed SW 18 G 29 mph
Barometer 29.72 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 18 Feb 1:35 am CST
Extended Forecast for

Benton IL

  • Overnight

    Overnight: Cloudy, with a steady temperature around 56. South southwest wind 11 to 18 mph, with gusts as high as 36 mph.

    Low: 56 °F

    Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 73. Southwest wind 8 to 17 mph, with gusts as high as 30 mph.

    High: 73 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. South wind 6 to 8 mph.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 70. South southwest wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    High: 70 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Mostly clear, with a low around 41. West wind around 14 mph, with gusts as high as 23 mph.

    Low: 41 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 53. West wind 5 to 14 mph, with gusts as high as 21 mph.

    High: 53 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34. Calm wind becoming north northeast around 5 mph after midnight.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of snow showers before noon, then a chance of rain showers. Partly sunny, with a high near 46. North northeast wind 5 to 9 mph.

    High: 46 °F

    Slight Chance
    Snow Showers
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of rain and snow showers before midnight. Partly cloudy, with a low around 26. North northwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 26 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

Detailed Forecast

Overnight
Cloudy, with a steady temperature around 56. South southwest wind 11 to 18 mph, with gusts as high as 36 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 73. Southwest wind 8 to 17 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 54. South wind 6 to 8 mph.
Thursday
A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 70. South southwest wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Thursday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 41. West wind around 14 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 53. West wind 5 to 14 mph, with gusts as high as 21 mph.
Friday Night
Partly cloudy, with a low around 34. Calm wind becoming north northeast around 5 mph after midnight.
Saturday
A slight chance of snow showers before noon, then a chance of rain showers. Partly sunny, with a high near 46. North northeast wind 5 to 9 mph.
Saturday Night
A chance of rain and snow showers before midnight. Partly cloudy, with a low around 26. North northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 39. Northwest wind 11 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 21. Northwest wind 8 to 10 mph.
Monday
Sunny, with a high near 38. North northwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 20. Light and variable wind.
Tuesday
Mostly sunny, with a high near 46. Calm wind becoming south 5 to 9 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
1:21 am CST Feb 18, 2026
Forecast Valid:
1am CST Feb 18, 2026-6pm CST Feb 24, 2026
 
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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