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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

46°F

8°C

Humidity 53%
Wind Speed E 7 mph
Barometer 30.33 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 24 Mar 9:45 am CDT
Extended Forecast for

Marion IL

  • Today

    Today: Mostly sunny, with a high near 64. East southeast wind around 7 mph.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. East wind around 6 mph becoming calm in the evening.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. South southwest wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 46. South southwest wind 11 to 14 mph becoming north northwest after midnight. Winds could gust as high as 24 mph.

    Low: 46 °F

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 56. North wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    High: 56 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly clear, with a low around 33. North wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57. Northeast wind 6 to 8 mph.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 64. East southeast wind around 7 mph.
Tonight
Mostly cloudy, with a low around 46. East wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 74. Calm wind becoming south southwest 5 to 9 mph in the morning.
Wednesday Night
Mostly clear, with a low around 62. South wind 7 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 86. South southwest wind 10 to 16 mph, with gusts as high as 26 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 46. South southwest wind 11 to 14 mph becoming north northwest after midnight. Winds could gust as high as 24 mph.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 56. North wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Friday Night
Mostly clear, with a low around 33. North wind 7 to 11 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 57. Northeast wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 38. Light east northeast wind.
Sunday
Partly sunny, with a high near 66. South wind 5 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 50. South wind around 7 mph.
Monday
Mostly sunny, with a high near 76. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marion IL
 37.73°N 88.95°W
Last Update:
7:46 am CDT Mar 24, 2026
Forecast Valid:
10am CDT Mar 24, 2026-6pm CDT Mar 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation