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.

Mostly Cloudy

45°F

7°C

Humidity 71%
Wind Speed SW 16 G 24 mph
Barometer 30.08 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 21 Jan 12:45 pm CST
Extended Forecast for

Benton IL

Winter Storm Watch January 24, 12:00am until January 25, 12:00pm
Click here for hazard details and duration
Winter Storm Watch

  • This Afternoon

    This Afternoon: Sunny, with a high near 47. West southwest wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 24. West southwest wind around 6 mph becoming north northwest after midnight.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 39. Light north northwest wind.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 14. Light and variable wind becoming north 6 to 11 mph after midnight. Winds could gust as high as 20 mph.

    Low: 14 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 21. North wind around 14 mph, with gusts as high as 23 mph.

    High: 21 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of snow showers after midnight. Cloudy, with a low around 4. North northeast wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 4 °F

    Cloudy then
    Chance Snow
    Showers

  • Saturday

    Saturday: Snow showers likely, mainly after noon. Cloudy, with a high near 15. Northeast wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    High: 15 °F

    Snow Showers
    Likely

  • Saturday Night

    Saturday Night: Snow showers. Cloudy, with a low around 10. Northeast wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 10 °F

    Snow Showers

  • Sunday

    Sunday: A chance of snow showers, mainly before noon. Mostly cloudy, with a high near 20. North wind 7 to 10 mph.

    High: 20 °F

    Chance Snow
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 47. West southwest wind 8 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 24. West southwest wind around 6 mph becoming north northwest after midnight.
Thursday
Mostly sunny, with a high near 39. Light north northwest wind.
Thursday Night
Mostly cloudy, with a low around 14. Light and variable wind becoming north 6 to 11 mph after midnight. Winds could gust as high as 20 mph.
Friday
Mostly cloudy, with a high near 21. North wind around 14 mph, with gusts as high as 23 mph.
Friday Night
A 30 percent chance of snow showers after midnight. Cloudy, with a low around 4. North northeast wind 11 to 14 mph, with gusts as high as 22 mph.
Saturday
Snow showers likely, mainly after noon. Cloudy, with a high near 15. Northeast wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Saturday Night
Snow showers. Cloudy, with a low around 10. Northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Sunday
A chance of snow showers, mainly before noon. Mostly cloudy, with a high near 20. North wind 7 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 6. Northwest wind around 6 mph.
Monday
Mostly sunny, with a high near 23. West northwest wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 8. West southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 31. South southwest wind 5 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
11:06 am CST Jan 21, 2026
Forecast Valid:
1pm CST Jan 21, 2026-6pm CST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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