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

59°F

15°C

Humidity 97%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 30 Apr 3:35 am CDT
Extended Forecast for

Benton IL

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Light and variable wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 65. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 65 °F

    Chance
    T-storms then
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 76. South southwest wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

    High: 76 °F

    Showers then
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 58. West wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 73. West wind 5 to 8 mph. Chance of precipitation is 50%.

    High: 73 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers after 1am. Mostly cloudy, with a low around 51. West northwest wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers. Sunny, with a high near 69. North wind 6 to 9 mph.

    High: 69 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47. Northeast wind 3 to 6 mph.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 58. Calm wind.
Wednesday
A slight chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Light and variable wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 65. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm. High near 76. South southwest wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 58. West wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 73. West wind 5 to 8 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers after 1am. Mostly cloudy, with a low around 51. West northwest wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday
A slight chance of showers. Sunny, with a high near 69. North wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 47. Northeast wind 3 to 6 mph.
Sunday
Sunny, with a high near 70. Northeast wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 49. Light east northeast wind.
Monday
Sunny, with a high near 76. East wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 53. Light east southeast wind.
Tuesday
Sunny, with a high near 79. Calm wind becoming south 5 to 7 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
3:38 am CDT Apr 30, 2025
Forecast Valid:
3am CDT Apr 30, 2025-6pm CDT May 6, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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