Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Rain

37°F

3°C

Humidity 80%
Wind Speed W 6 G 24 mph
Barometer 29.61 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 15 Mar 11:15 pm CDT
Extended Forecast for

Marion IL

Wind Advisory March 15, 11:25pm until March 16, 07:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 15, 11:25pm until March 16, 07:00am

    NOW until 7:00am Mon

    Wind Advisory

  • Tonight

    Low: 26 °F

    Mostly Cloudy
    and Breezy

  • Monday

    Monday: Mostly cloudy, with a high near 35. Breezy, with a west northwest wind 20 to 22 mph, with gusts as high as 32 mph.

    High: 35 °F

    Mostly Cloudy
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 18. West northwest wind 10 to 16 mph, with gusts as high as 24 mph.

    Low: 18 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 39. Northwest wind 6 to 8 mph.

    High: 39 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow showers after 1am.  Mostly cloudy, with a low around 29. Light south southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 59. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. South wind 5 to 7 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 70. South southwest wind 5 to 8 mph becoming west northwest in the afternoon.

    High: 70 °F

    Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 26. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 33 mph.
Monday
Mostly cloudy, with a high near 35. Breezy, with a west northwest wind 20 to 22 mph, with gusts as high as 32 mph.
Monday Night
Mostly cloudy, with a low around 18. West northwest wind 10 to 16 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 39. Northwest wind 6 to 8 mph.
Tuesday Night
A 20 percent chance of snow showers after 1am. Mostly cloudy, with a low around 29. Light south southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 20 mph.
Wednesday
Partly sunny, with a high near 59. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 42. South wind 5 to 7 mph.
Thursday
Sunny, with a high near 70. South southwest wind 5 to 8 mph becoming west northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 45. North northwest wind around 5 mph becoming light and variable in the evening.
Friday
Mostly sunny, with a high near 74. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Friday Night
Partly cloudy, with a low around 52. South southwest wind around 7 mph.
Saturday
Sunny, with a high near 77. West northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 49. Northwest wind around 8 mph becoming northeast after midnight.
Sunday
Mostly sunny, with a high near 75. East southeast wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Marion IL
 37.73°N 88.92°W
11:16 pm CDT Mar 15, 2026
11pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
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Additional Resources

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