Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

43°F

6°C

Humidity 61%
Wind Speed SW 9 mph
Barometer 29.77 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 6 Feb 8:45 am CST
Extended Forecast for

Marion IL

  • Today

    Today: Mostly sunny, with a high near 46. North northwest wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 46 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. North northwest wind 6 to 9 mph.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 35. North northeast wind around 6 mph becoming light and variable  in the afternoon.

    High: 35 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 24. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 24 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 50. South southwest wind 5 to 8 mph.

    High: 50 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32. Light south wind.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 59. Calm wind becoming southwest around 5 mph.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers, mainly after noon.  Mostly cloudy, with a high near 65. South southwest wind 6 to 9 mph.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 46. North northwest wind 10 to 15 mph, with gusts as high as 26 mph.
Tonight
Mostly cloudy, with a low around 23. North northwest wind 6 to 9 mph.
Saturday
Sunny, with a high near 35. North northeast wind around 6 mph becoming light and variable in the afternoon.
Saturday Night
Increasing clouds, with a low around 24. Calm wind becoming south southeast around 5 mph after midnight.
Sunday
Mostly sunny, with a high near 50. South southwest wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 32. Light south wind.
Monday
Sunny, with a high near 59. Calm wind becoming southwest around 5 mph.
Monday Night
Partly cloudy, with a low around 42. Calm wind becoming south southwest around 6 mph after midnight.
Tuesday
A chance of showers, mainly after noon. Mostly cloudy, with a high near 65. South southwest wind 6 to 9 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 42. Southwest wind around 7 mph becoming northwest after midnight.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 54. North northwest wind 6 to 9 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 33. North wind around 5 mph.
Thursday
A slight chance of showers. Mostly cloudy, with a high near 47. North wind 5 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Marion IL
 37.73°N 88.95°W
7:21 am CST Feb 6, 2026
9am CST Feb 6, 2026-6pm CST Feb 12, 2026
 
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Additional Resources

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Hourly Weather Forecast

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