Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

82°F

28°C

Humidity 67%
Wind Speed SW 5 mph
Barometer 29.97 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 25 Jun 7:35 pm CDT
Extended Forecast for

4 Miles SSW Marion IL

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

    NOW until 7:00am Sat

    Flood Watch

  • Tonight

    Low: 71 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 9am, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 86. South southwest wind 6 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am.  Low around 72. Southwest wind 5 to 10 mph becoming light west southwest  after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 80%.

    Low: 72 °F

    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 88. West southwest wind 3 to 6 mph.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am.  Partly cloudy, with a low around 73. Light south wind.

    Low: 73 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 93. South southwest wind 5 to 9 mph.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. South southwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 97. Calm wind becoming south southwest 5 to 7 mph in the morning.

    High: 97 °F

    Hot

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 71. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Friday
Showers and thunderstorms likely, mainly before 9am, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. South southwest wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am. Low around 72. Southwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 88. West southwest wind 3 to 6 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. Light south wind.
Sunday
Sunny, with a high near 93. South southwest wind 5 to 9 mph.
Sunday Night
Mostly clear, with a low around 75. South southwest wind 5 to 7 mph becoming calm after midnight.
Monday
Sunny and hot, with a high near 97. Calm wind becoming south southwest 5 to 7 mph in the morning.
Monday Night
Clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 98. Calm wind becoming south southwest around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 77. Light and variable wind.
Wednesday
Sunny and hot, with a high near 99. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 78. Calm wind.
Thursday
Sunny and hot, with a high near 98. Light and variable wind.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Marion IL
 37.67°N 88.98°W
6:36 pm CDT Jun 25, 2026
7pm CDT Jun 25, 2026-6pm CDT Jul 2, 2026
 
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Additional Resources

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