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

27°F

-3°C

Humidity 39%
Wind Speed S 12 mph
Barometer 30.51 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 20 Jan 10:45 am CST
Extended Forecast for

Benton IL

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 35. South wind 8 to 10 mph.

    High: 35 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 26. South wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 26 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A slight chance of showers between 7am and 9am. Cloudy through mid morning, then gradual clearing, with a high near 46. Southwest wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 24. Southwest wind around 5 mph becoming light and variable.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 40. North northwest wind 3 to 6 mph.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16. Calm wind becoming north 5 to 7 mph after midnight.

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 24. North wind 8 to 13 mph, with gusts as high as 18 mph.

    High: 24 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of snow showers, mainly after midnight. Mostly cloudy, with a low around 6. North northeast wind around 11 mph, with gusts as high as 20 mph.

    Low: 6 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A chance of snow showers. Mostly cloudy, with a high near 18. North northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 18 °F

    Chance Snow
    Showers

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 35. South wind 8 to 10 mph.
Tonight
Increasing clouds, with a low around 26. South wind 7 to 13 mph, with gusts as high as 23 mph.
Wednesday
A slight chance of showers between 7am and 9am. Cloudy through mid morning, then gradual clearing, with a high near 46. Southwest wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 24. Southwest wind around 5 mph becoming light and variable.
Thursday
Mostly sunny, with a high near 40. North northwest wind 3 to 6 mph.
Thursday Night
Partly cloudy, with a low around 16. Calm wind becoming north 5 to 7 mph after midnight.
Friday
Mostly cloudy, with a high near 24. North wind 8 to 13 mph, with gusts as high as 18 mph.
Friday Night
A chance of snow showers, mainly after midnight. Mostly cloudy, with a low around 6. North northeast wind around 11 mph, with gusts as high as 20 mph.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 18. North northeast wind around 10 mph, with gusts as high as 20 mph.
Saturday Night
A chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 9. North northeast wind 7 to 9 mph.
Sunday
Mostly sunny, with a high near 24. North wind 6 to 8 mph becoming west in the afternoon.
Sunday Night
Mostly clear, with a low around 7. West wind around 5 mph.
Monday
Sunny, with a high near 27. West northwest wind 5 to 7 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:
10:52 am CST Jan 20, 2026
Forecast Valid:
11am CST Jan 20, 2026-6pm CST Jan 26, 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