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 and Breezy

76°F

24°C

Humidity 40%
Wind Speed S 22 G 28 mph
Barometer 29.82 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 26 Mar 10:15 pm CDT
Extended Forecast for

Benton IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5am. Low around 44. Southwest wind 10 to 16 mph becoming north northeast after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 80%.

    Low: 44 °F

    Partly Cloudy
    then Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 54. North wind around 16 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 54 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 32. North wind 6 to 14 mph, with gusts as high as 22 mph.

    Low: 32 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Patchy frost before 8am. Otherwise, sunny, with a high near 57. North northeast wind around 6 mph becoming east southeast in the afternoon.

    High: 57 °F

    Patchy Frost
    then Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40. Southeast wind 3 to 5 mph.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 68. South wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. South wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81. South southwest wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 64. South wind around 11 mph, with gusts as high as 22 mph.

    Low: 64 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5am. Low around 44. Southwest wind 10 to 16 mph becoming north northeast after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
Friday
Showers and thunderstorms likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 54. North wind around 16 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Friday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 32. North wind 6 to 14 mph, with gusts as high as 22 mph.
Saturday
Patchy frost before 8am. Otherwise, sunny, with a high near 57. North northeast wind around 6 mph becoming east southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 40. Southeast wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 68. South wind 5 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 57. South wind 7 to 10 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 81. South southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Monday Night
Mostly cloudy, with a low around 64. South wind around 11 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, with a high near 85. South southwest wind 13 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South southwest wind around 14 mph, with gusts as high as 25 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. South southwest wind 14 to 17 mph, with gusts as high as 25 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. South wind around 14 mph, with gusts as high as 23 mph.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 74. South wind 13 to 15 mph, with gusts as high as 23 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
10:16 pm CDT Mar 26, 2026
Forecast Valid:
10pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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