Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Mostly Cloudy and Breezy

84°F

29°C

Humidity 66%
Wind Speed SW 23 G 46 mph
Barometer 29.51 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 17 Jun 5:45 pm CDT
Extended Forecast for

3 Miles W Marion IL

Wind Advisory June 17, 06:24pm until June 17, 08:00pm
Click here for hazard details and duration
...
  •  
    Wind Advisory June 17, 06:24pm until June 17, 08:00pm

    NOW until 8:00pm Wed

    Wind Advisory

  • Tonight

    Low: 72 °F

    Chance
    T-storms and
    Breezy then
    Heavy Rain

  • Thursday

    Thursday: A 10 percent chance of showers before 7am.  Mostly sunny, with a high near 86. West northwest wind 5 to 8 mph.

    High: 86 °F

    Slight Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 9pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 63. North wind around 6 mph becoming calm  in the evening.

    Low: 63 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 84. Light north wind.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 68. South wind around 5 mph becoming calm  in the evening.

    Low: 68 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm.  Partly sunny, with a high near 85. Southwest wind 6 to 15 mph, with gusts as high as 24 mph.

    High: 85 °F

    Showers
    Likely

Detailed Forecast

Tonight
Showers and thunderstorms before 4am, then a slight chance of showers. Some of the storms could produce heavy rainfall. Low around 72. Breezy, with a south southwest wind 21 to 26 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 90%.
Thursday
A 10 percent chance of showers before 7am. Mostly sunny, with a high near 86. West northwest wind 5 to 8 mph.
Thursday Night
A 20 percent chance of showers before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 63. North wind around 6 mph becoming calm in the evening.
Juneteenth
Mostly sunny, with a high near 84. Light north wind.
Friday Night
Partly cloudy, with a low around 64. Calm wind.
Saturday
Mostly sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Southwest wind 6 to 15 mph, with gusts as high as 24 mph.
Sunday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 69. West southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. West wind 9 to 11 mph becoming north in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Partly cloudy, with a low around 64. North wind 5 to 9 mph becoming light in the evening.
Tuesday
Mostly sunny, with a high near 82. East wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 64. Calm wind.
Wednesday
Mostly sunny, with a high near 85. Calm wind.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Marion IL
 37.74°N 89°W
2:26 pm CDT Jun 17, 2026
6pm CDT Jun 17, 2026-6pm CDT Jun 24, 2026
 
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Additional Resources

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