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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Rain

75°F

24°C

Humidity 98%
Wind Speed SW 7 mph
Barometer 29.94 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Last update 27 Jun 4:55 am CDT
Extended Forecast for

Benton ILSimilar City Names

Flood Watch June 27, 05:19am until June 28, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 27, 05:19am until June 28, 07:00am

    NOW until 7:00am Sun

    Flood Watch

  • Overnight

    Low: 74 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms after 9am. Mostly cloudy, with a high near 85. Southwest wind 5 to 8 mph. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 106. Light south wind becoming south southwest 5 to 10 mph in the morning.

    High: 93 °F

    Slight Chance
    Showers then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. South wind 3 to 8 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95. South southwest wind 5 to 9 mph.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. South wind 5 to 8 mph becoming calm after midnight.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. Calm wind becoming south southwest around 5 mph in the morning.

    High: 97 °F

    Hot

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 74. Light south southwest wind. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms after 9am. Mostly cloudy, with a high near 85. Southwest wind 5 to 8 mph. Chance of precipitation is 60%.
Saturday Night
A chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Sunday
A 10 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 106. Light south wind becoming south southwest 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 75. South wind 3 to 8 mph.
Monday
Sunny, with a high near 95. South southwest wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 76. South wind 5 to 8 mph becoming calm after midnight.
Tuesday
Sunny and hot, with a high near 97. Calm wind becoming south southwest around 5 mph in the morning.
Tuesday Night
Clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 97. Calm wind.
Wednesday Night
Mostly clear, with a low around 77. Calm wind.
Thursday
Sunny, with a high near 95. Light and variable wind.
Thursday Night
Mostly clear, with a low around 76. Calm wind.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 94. Calm wind.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton ILSimilar City Names
 38°N 88.93°W
Last Update:
5:06 am CDT Jun 27, 2026
Forecast Valid:
5am CDT Jun 27, 2026-6pm CDT Jul 3, 2026
 
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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