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.

Fair

14°F

-10°C

Humidity 57%
Wind Speed NW 14 mph
Barometer 30.51 in
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill-1°F (-18°C)
Last update 31 Jan 9:45 am CST
Extended Forecast for

Benton IL

Cold Weather Advisory January 31, 10:04am until January 31, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 31, 10:04am until January 31, 12:00pm

    NOW until 12:00pm Sat

    Cold Weather Advisory

  • Today

    High: 20 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 1. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 1 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 28. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 28 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17. South southwest wind 3 to 7 mph.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 38. West southwest wind 3 to 6 mph.

    High: 38 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. Light and variable wind.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow showers, mainly after noon. Mostly cloudy, with a high near 37. Light and variable wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 30%.

    High: 37 °F

    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers before midnight. Mostly cloudy, with a low around 19. North wind around 6 mph.

    Low: 19 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

Detailed Forecast

Today
Increasing clouds, with a high near 20. Wind chill values as low as -1. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Tonight
Partly cloudy, with a low around 1. Northwest wind 5 to 7 mph becoming calm after midnight.
Sunday
Partly sunny, with a high near 28. Calm wind becoming south 5 to 8 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 17. South southwest wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 38. West southwest wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 25. Light and variable wind.
Tuesday
A chance of rain and snow showers, mainly after noon. Mostly cloudy, with a high near 37. Light and variable wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
A slight chance of snow showers before midnight. Mostly cloudy, with a low around 19. North wind around 6 mph.
Wednesday
Partly sunny, with a high near 30. North wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 10. North wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 33. Calm wind becoming west southwest around 6 mph in the morning.
Thursday Night
Partly cloudy, with a low around 22. South southwest wind 5 to 9 mph.
Friday
Mostly sunny, with a high near 41. Southwest wind around 10 mph becoming northwest in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
8:36 am CST Jan 31, 2026
Forecast Valid:
10am CST Jan 31, 2026-6pm CST Feb 6, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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