National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fog/Mist

50°F

10°C

Humidity 94%
Wind Speed S 12 mph
Barometer 29.94 in
Dewpoint 48°F (9°C)
Visibility 5.00 mi
Wind Chill45°F (7°C)
Last update 10 Feb 6:47 am CST
Extended Forecast for

Benton IL

  • Today

    Today: Mostly sunny, with a high near 66. South southwest wind 7 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 66 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. North wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 48. North wind 3 to 6 mph.

    High: 48 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 29. Calm wind.

    Low: 29 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 48. Calm wind becoming east southeast around 6 mph in the morning.

    High: 48 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 34. East wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 51. East wind 3 to 6 mph.

    High: 51 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. East wind 3 to 6 mph.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain. Cloudy, with a high near 50. East wind 6 to 10 mph.

    High: 50 °F

    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 66. South southwest wind 7 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.
Tonight
Mostly cloudy, with a low around 30. North wind 6 to 10 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 48. North wind 3 to 6 mph.
Wednesday Night
Increasing clouds, with a low around 29. Calm wind.
Thursday
Mostly cloudy, with a high near 48. Calm wind becoming east southeast around 6 mph in the morning.
Thursday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 34. East wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 51. East wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 36. East wind 3 to 6 mph.
Saturday
A chance of rain. Cloudy, with a high near 50. East wind 6 to 10 mph.
Saturday Night
Rain. Cloudy, with a low around 41. East wind around 10 mph, with gusts as high as 20 mph.
Sunday
A chance of rain. Partly sunny, with a high near 53. North northwest wind 8 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 35. North northwest wind 5 to 7 mph becoming calm after midnight.
Washington's Birthday
Sunny, with a high near 58. Calm wind becoming south 5 to 7 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:
4:52 am CST Feb 10, 2026
Forecast Valid:
7am CST Feb 10, 2026-6pm CST Feb 16, 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