Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fog/Mist

37°F

3°C

Humidity 93%
Wind Speed SW 6 mph
Barometer 30.00 in
Dewpoint 36°F (2°C)
Visibility 5.00 mi
Wind Chill32°F (0°C)
Last update 7 Dec 7:45 am CST
Extended Forecast for

Marion IL

  • Today

    Today: A slight chance of drizzle.  Mostly cloudy, with a high near 46. South southwest wind 5 to 10 mph becoming north in the afternoon.

    High: 46 °F

    Slight Chance
    Drizzle

  • Tonight

    Tonight: Cloudy, with a low around 27. North wind 7 to 10 mph.

    Low: 27 °F

    Cloudy

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 38. North wind 5 to 7 mph becoming calm  in the afternoon.

    High: 38 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Mostly clear, with a low around 26. Calm wind becoming south southwest 5 to 9 mph after midnight. Winds could gust as high as 18 mph.

    Low: 26 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. South southwest wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. South southwest wind 14 to 16 mph, with gusts as high as 26 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 52. Southwest wind 8 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain before midnight, then a slight chance of rain and snow.  Mostly cloudy, with a low around 30. Northwest wind around 6 mph becoming calm.

    Low: 30 °F

    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow before noon, then a chance of rain.  Mostly cloudy, with a high near 40. East wind 5 to 8 mph becoming north in the afternoon.

    High: 40 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Today
A slight chance of drizzle. Mostly cloudy, with a high near 46. South southwest wind 5 to 10 mph becoming north in the afternoon.
Tonight
Cloudy, with a low around 27. North wind 7 to 10 mph.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 38. North wind 5 to 7 mph becoming calm in the afternoon.
Monday Night
Mostly clear, with a low around 26. Calm wind becoming south southwest 5 to 9 mph after midnight. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 49. South southwest wind 10 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 42. South southwest wind 14 to 16 mph, with gusts as high as 26 mph.
Wednesday
Partly sunny, with a high near 52. Southwest wind 8 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.
Wednesday Night
A slight chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 30. Northwest wind around 6 mph becoming calm.
Thursday
A chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 40. East wind 5 to 8 mph becoming north in the afternoon.
Thursday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 21. North northwest wind 6 to 9 mph.
Friday
Partly sunny, with a high near 30. Northwest wind 9 to 11 mph, with gusts as high as 18 mph.
Friday Night
Partly cloudy, with a low around 9. Northwest wind 7 to 9 mph.
Saturday
Mostly sunny, with a high near 24. West northwest wind 6 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Marion IL
 37.73°N 88.92°W
7:21 am CST Dec 7, 2025
8am CST Dec 7, 2025-6pm CST Dec 13, 2025
 
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Additional Resources

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