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

52°F

11°C

Humidity 72%
Wind Speed NW 10 G 25 mph
Barometer 30.01 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 9 Jan 8:45 am CST
Extended Forecast for

Benton ILSimilar City Names

  • Today

    Today: Mostly cloudy, with a steady temperature around 51. West northwest wind 5 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 23 mph.

    High: 51 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 42. Light and variable wind becoming east northeast around 5 mph.

    Low: 42 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 48. West northwest wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 48 °F

    Slight Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26. West wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 38. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 38 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 49. Southwest wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. South southwest wind 7 to 9 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 55 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a steady temperature around 51. West northwest wind 5 to 10 mph becoming north northeast in the afternoon. Winds could gust as high as 23 mph.
Tonight
A 30 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 42. Light and variable wind becoming east northeast around 5 mph.
Saturday
A 20 percent chance of showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 48. West northwest wind 5 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 26. West wind 7 to 13 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 38. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 25. Calm wind becoming south southwest around 6 mph after midnight.
Monday
Sunny, with a high near 49. Southwest wind 7 to 14 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 36. South southwest wind 7 to 9 mph.
Tuesday
Mostly sunny, with a high near 55. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 39. South southwest wind 6 to 10 mph becoming west northwest after midnight.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 45. North northwest wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 26. North northwest wind 6 to 9 mph.
Thursday
Mostly sunny, with a high near 39. North northwest wind 6 to 8 mph becoming southwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Benton ILSimilar City Names
 38°N 88.93°W
Last Update:
8:31 am CST Jan 9, 2026
Forecast Valid:
8am CST Jan 9, 2026-6pm CST Jan 15, 2026
 
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