Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair and Breezy

30°F

-1°C

Humidity 55%
Wind Speed N 21 G 28 mph
Barometer 30.03 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 14 Jan 5:45 pm CST
Extended Forecast for

Marion IL

  • Tonight

    Tonight: Mostly clear, with a low around 19. Northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 28 mph.

    Low: 19 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 34. Northwest wind 5 to 7 mph becoming light and variable  in the afternoon.

    High: 34 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers after midnight.  Mostly cloudy, with a temperature rising to around 34 by 3am. Light south wind becoming south southwest 6 to 11 mph in the evening. Winds could gust as high as 22 mph.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Friday

    Friday: Partly sunny, with a high near 46. West wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 46 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23. West wind 7 to 9 mph.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 30. West northwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 30 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 11. Northwest wind around 7 mph.

    Low: 11 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 25. West northwest wind 6 to 10 mph becoming southwest in the afternoon.

    High: 25 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16. South southwest wind 7 to 9 mph.

    Low: 16 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 19. Northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 28 mph.
Thursday
Sunny, with a high near 34. Northwest wind 5 to 7 mph becoming light and variable in the afternoon.
Thursday Night
A 20 percent chance of snow showers after midnight. Mostly cloudy, with a temperature rising to around 34 by 3am. Light south wind becoming south southwest 6 to 11 mph in the evening. Winds could gust as high as 22 mph.
Friday
Partly sunny, with a high near 46. West wind 9 to 13 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 23. West wind 7 to 9 mph.
Saturday
Partly sunny, with a high near 30. West northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 11. Northwest wind around 7 mph.
Sunday
Sunny, with a high near 25. West northwest wind 6 to 10 mph becoming southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 16. South southwest wind 7 to 9 mph.
M.L.King Day
Mostly sunny, with a high near 30. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 11. Northwest wind 3 to 7 mph.
Tuesday
Sunny, with a high near 32. Light and variable wind becoming west 5 to 9 mph in the morning.
Tuesday Night
Mostly clear, with a low around 20. South southwest wind 6 to 8 mph.
Wednesday
Sunny, with a high near 40. Southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Marion IL
 37.73°N 88.92°W
3:36 pm CST Jan 14, 2026
6pm CST Jan 14, 2026-6pm CST Jan 21, 2026
 
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Additional Resources

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