Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

A Few Clouds

36°F

2°C

Humidity 75%
Wind Speed S 14 G 23 mph
Barometer 30.04 in
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill27°F (-3°C)
Last update 9 Dec 8:45 am CST
Extended Forecast for

Marion IL

  • Today

    Today: Sunny, with a high near 49. South southwest wind 13 to 17 mph, with gusts as high as 25 mph.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a steady temperature around 44. South southwest wind 15 to 18 mph, with gusts as high as 28 mph.

    Low: 44 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then becoming sunny, with a temperature rising to near 48 by 9am, then falling to around 37 during the remainder of the day. Breezy, with a west southwest wind 13 to 20 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph.

    High: 48 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming light west northwest  in the evening.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 42. Calm wind becoming west southwest 5 to 7 mph in the morning.

    High: 42 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. Southeast wind around 6 mph.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 47. Southeast wind 6 to 10 mph becoming northwest in the afternoon.

    High: 47 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 22. North northwest wind 6 to 8 mph.

    Low: 22 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 34. North northeast wind around 7 mph.

    High: 34 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 49. South southwest wind 13 to 17 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a steady temperature around 44. South southwest wind 15 to 18 mph, with gusts as high as 28 mph.
Wednesday
Mostly cloudy through mid morning, then becoming sunny, with a temperature rising to near 48 by 9am, then falling to around 37 during the remainder of the day. Breezy, with a west southwest wind 13 to 20 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
Mostly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming light west northwest in the evening.
Thursday
Mostly cloudy, with a high near 42. Calm wind becoming west southwest 5 to 7 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 32. Southeast wind around 6 mph.
Friday
Partly sunny, with a high near 47. Southeast wind 6 to 10 mph becoming northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 22. North northwest wind 6 to 8 mph.
Saturday
Partly sunny, with a high near 34. North northeast wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 13. North wind around 6 mph.
Sunday
Mostly sunny, with a high near 26. North wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 15. North northeast wind around 5 mph becoming light and variable.
Monday
A slight chance of rain and snow showers. Partly sunny, with a high near 37. East southeast wind 5 to 8 mph becoming south southwest in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Marion IL
 37.73°N 88.92°W
7:06 am CST Dec 9, 2025
9am CST Dec 9, 2025-6pm CST Dec 15, 2025
 
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Additional Resources

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