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

62°F

17°C

Humidity 94%
Wind Speed SW 3 mph
Barometer 30.16 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 24 Jun 2:15 am CDT
Extended Forecast for

2 Miles ESE Benton IL

  • Overnight

    Overnight: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 67 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 3pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7pm. Low around 70. Light south wind. Chance of precipitation is 90%.

    Low: 70 °F

    T-storms
    Likely then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 86. South southwest wind 5 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.

    High: 86 °F

    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 71. South southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 71 °F

    T-storms
    Likely then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 89. Southwest wind 3 to 7 mph.

    High: 89 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 61. Calm wind.
Wednesday
Mostly sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms before 3pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Thursday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7pm. Low around 70. Light south wind. Chance of precipitation is 90%.
Friday
Showers and possibly a thunderstorm. High near 86. South southwest wind 5 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Friday Night
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 71. South southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 89. Southwest wind 3 to 7 mph.
Saturday Night
A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 94. South southwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 75. South wind 3 to 8 mph.
Monday
Sunny, with a high near 96. South southwest wind 5 to 9 mph.
Monday Night
Clear, with a low around 77. South wind 3 to 8 mph.
Tuesday
Sunny and hot, with a high near 97. Calm wind becoming south southwest 5 to 7 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Benton IL
 38°N 88.88°W
Last Update:
1:26 am CDT Jun 24, 2026
Forecast Valid:
2am CDT Jun 24, 2026-6pm CDT Jun 30, 2026
 
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