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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

47°F

8°C

Humidity 53%
Wind Speed N 9 mph
Barometer 30.49 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 27 Mar 7:35 pm CDT
Extended Forecast for

Marion IL

Freeze Warning March 28, 01:00am until March 28, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: Mostly clear, with a low around 32. North wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57. North northeast wind around 6 mph becoming east southeast in the afternoon.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Southeast wind 3 to 5 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 70. South southwest wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. South wind around 10 mph, with gusts as high as 18 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79. South southwest wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65. South wind around 14 mph, with gusts as high as 24 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 82 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. South southwest wind 13 to 15 mph becoming west after midnight. Winds could gust as high as 24 mph.

    Low: 54 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 32. North wind 6 to 13 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 57. North northeast wind around 6 mph becoming east southeast in the afternoon.
Saturday Night
Mostly clear, with a low around 39. Southeast wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 70. South southwest wind 6 to 14 mph, with gusts as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 56. South wind around 10 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 79. South southwest wind 10 to 17 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 65. South wind around 14 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 82. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. South southwest wind 13 to 15 mph becoming west after midnight. Winds could gust as high as 24 mph.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 64. West northwest wind 13 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 24 mph.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 47. Northeast wind around 11 mph, with gusts as high as 20 mph.
Thursday
Showers and thunderstorms likely. Mostly cloudy, with a high near 60. East northeast wind around 11 mph, with gusts as high as 21 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 51. East southeast wind 7 to 9 mph becoming south southwest after midnight.
Friday
A chance of showers. Mostly cloudy, with a high near 70. South wind 7 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marion IL
 37.73°N 88.92°W
Last Update:
5:26 pm CDT Mar 27, 2026
Forecast Valid:
7pm CDT Mar 27, 2026-6pm CDT Apr 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation