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.

Overcast with Haze

43°F

6°C

Humidity 81%
Wind Speed N 12 mph
Barometer 30.08 in
Dewpoint 37°F (3°C)
Visibility 5.00 mi
Wind Chill37°F (3°C)
Last update 7 Dec 3:45 pm CST
Extended Forecast for

Benton IL

  • This Afternoon

    This Afternoon: A slight chance of drizzle before 5pm, then a slight chance of showers after 5pm. Cloudy, with a high near 46. North wind around 10 mph. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of drizzle before midnight, then a slight chance of snow showers between midnight and 1am. Cloudy, with a low around 26. North wind 7 to 10 mph. Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Drizzle then
    Slight Chance
    Snow Showers

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 38. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 38 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 26. Calm wind becoming south southwest 5 to 9 mph after midnight. Winds could gust as high as 18 mph.

    Low: 26 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Southwest wind 14 to 16 mph, with gusts as high as 25 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 52. Southwest wind 9 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of snow showers after midnight. Mostly cloudy, with a low around 28. Northwest wind 5 to 7 mph becoming calm.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Thursday

    Thursday: A chance of rain and snow showers before noon, then a chance of rain showers. Mostly cloudy, with a high near 38. North northeast wind 5 to 8 mph becoming south southwest in the morning.

    High: 38 °F

    Chance
    Rain/Snow
    then Chance
    Showers

Detailed Forecast

This Afternoon
A slight chance of drizzle before 5pm, then a slight chance of showers after 5pm. Cloudy, with a high near 46. North wind around 10 mph. Chance of precipitation is 20%.
Tonight
A slight chance of drizzle before midnight, then a slight chance of snow showers between midnight and 1am. Cloudy, with a low around 26. North wind 7 to 10 mph. Chance of precipitation is 20%.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 38. North wind 5 to 7 mph becoming calm in the afternoon.
Monday Night
Mostly clear, with a low around 26. Calm wind becoming south southwest 5 to 9 mph after midnight. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 50. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 42. Southwest wind 14 to 16 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 52. Southwest wind 9 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
A slight chance of snow showers after midnight. Mostly cloudy, with a low around 28. Northwest wind 5 to 7 mph becoming calm.
Thursday
A chance of rain and snow showers before noon, then a chance of rain showers. Mostly cloudy, with a high near 38. North northeast wind 5 to 8 mph becoming south southwest in the morning.
Thursday Night
Mostly cloudy, with a low around 21. North northwest wind 6 to 9 mph.
Friday
Partly sunny, with a high near 31. Northwest wind 9 to 13 mph.
Friday Night
Partly cloudy, with a low around 8. Northwest wind around 10 mph.
Saturday
Mostly sunny, with a high near 23. Northwest wind 6 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:
3:16 pm CST Dec 7, 2025
Forecast Valid:
3pm CST Dec 7, 2025-6pm CST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation