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.

Fair

71°F

22°C

Humidity 59%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Sep 10:15 pm CDT
Extended Forecast for

Benton ILSimilar City Names

  • Tonight

    Tonight: Clear, with a low around 60. Calm wind.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 95. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 93. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 93 °F

    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 65. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 90. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of thunderstorms before 7pm, then a slight chance of showers after 1am. Partly cloudy, with a low around 64. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Light south wind becoming south southwest 5 to 10 mph in the morning.

    High: 88 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 3 to 6 mph.

    Low: 65 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 60. Calm wind.
Thursday
Sunny, with a high near 95. Calm wind becoming southeast around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 65. Calm wind.
Friday
Partly sunny, with a high near 93. Calm wind becoming west southwest around 6 mph in the afternoon.
Friday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 65. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
A slight chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 90. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
A slight chance of thunderstorms before 7pm, then a slight chance of showers after 1am. Partly cloudy, with a low around 64. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Light south wind becoming south southwest 5 to 10 mph in the morning.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 3 to 6 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. South southwest wind 6 to 10 mph.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. South wind around 6 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind 3 to 8 mph.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 62. West southwest wind around 6 mph becoming calm in the evening.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 88. South wind 3 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Benton ILSimilar City Names
 38°N 88.93°W
Last Update:
9:16 pm CDT Sep 17, 2025
Forecast Valid:
10pm CDT Sep 17, 2025-6pm CDT Sep 24, 2025
 
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