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

13°F

-11°C

Humidity 57%
Wind Speed NW 6 mph
Barometer 30.44 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 30 Jan 8:55 pm CST
Extended Forecast for

Benton IL

Cold Weather Advisory until January 31, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until January 31, 12:00pm

    NOW until 12:00pm Sat

    Cold Weather Advisory

  • Tonight

    Low: 6 °F

    Chance
    Flurries

  • Saturday

    Saturday: Partly sunny, with a high near 19. Wind chill values as low as -9. North northwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 19 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 1. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 1 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 28. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 28 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 18. South wind around 6 mph.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 37. West southwest wind 3 to 6 mph.

    High: 37 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 26. Light south southeast wind.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow showers after noon. Mostly cloudy, with a high near 40. South southeast wind 5 to 7 mph becoming north northeast in the afternoon.

    High: 40 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
A chance of flurries, mainly before 2am. Mostly cloudy, with a low around 6. Wind chill values as low as -7. North wind 7 to 9 mph.
Saturday
Partly sunny, with a high near 19. Wind chill values as low as -9. North northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 1. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Increasing clouds, with a high near 28. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 18. South wind around 6 mph.
Monday
Mostly sunny, with a high near 37. West southwest wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 26. Light south southeast wind.
Tuesday
A chance of rain and snow showers after noon. Mostly cloudy, with a high near 40. South southeast wind 5 to 7 mph becoming north northeast in the afternoon.
Tuesday Night
A chance of rain and snow showers before midnight. Mostly cloudy, with a low around 26. North wind around 6 mph.
Wednesday
Mostly cloudy, with a high near 33. North wind 6 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 16. North northwest wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 33. Light and variable wind becoming west northwest around 6 mph in the morning.
Thursday Night
Partly cloudy, with a low around 24. South southwest wind 5 to 9 mph.
Friday
Mostly sunny, with a high near 42. West northwest wind 8 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
7:16 pm CST Jan 30, 2026
Forecast Valid:
9pm CST Jan 30, 2026-6pm CST Feb 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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