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.

Light Rain

44°F

7°C

Humidity 95%
Wind Speed NE 7 mph
Barometer 29.83 in
Dewpoint 42°F (6°C)
Visibility 7.00 mi
Wind Chill40°F (4°C)
Last update 15 Feb 4:55 am CST
Extended Forecast for

Benton IL

  • Overnight

    Overnight: Rain. Low around 44. Northeast wind around 7 mph. Chance of precipitation is 80%.

    Low: 44 °F

    Rain

  • Sunday

    Sunday: Rain likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 55. North northeast wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 55 °F

    Rain Likely
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 35. North wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Fog

  • Washington's Birthday

    Washington's Birthday: Areas of fog before 8am. Otherwise, partly sunny, with a high near 62. Calm wind becoming south 5 to 9 mph in the morning.

    High: 62 °F

    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43. South wind around 6 mph.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. South wind 6 to 16 mph, with gusts as high as 25 mph.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 59. Breezy, with a south southwest wind 17 to 22 mph, with gusts as high as 33 mph.

    Low: 59 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. West southwest wind 9 to 18 mph, with gusts as high as 29 mph.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. Southwest wind 5 to 8 mph.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain. Low around 44. Northeast wind around 7 mph. Chance of precipitation is 80%.
Sunday
Rain likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 55. North northeast wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Sunday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 35. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Areas of fog before 8am. Otherwise, partly sunny, with a high near 62. Calm wind becoming south 5 to 9 mph in the morning.
Monday Night
Mostly cloudy, with a low around 43. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 64. South wind 6 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 59. Breezy, with a south southwest wind 17 to 22 mph, with gusts as high as 33 mph.
Wednesday
Mostly sunny, with a high near 73. West southwest wind 9 to 18 mph, with gusts as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 47. Southwest wind 5 to 8 mph.
Thursday
A chance of showers after noon. Mostly sunny, with a high near 72. South southwest wind 6 to 14 mph, with gusts as high as 23 mph.
Thursday Night
A chance of showers. Partly cloudy, with a low around 45. South southwest wind 9 to 11 mph becoming west after midnight. Winds could gust as high as 21 mph.
Friday
A slight chance of showers. Mostly sunny, with a high near 57. West wind 9 to 11 mph, with gusts as high as 18 mph.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 32. West northwest wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 52. West northwest wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
3:21 am CST Feb 15, 2026
Forecast Valid:
5am CST Feb 15, 2026-6pm CST Feb 21, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation