Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
60°F
16°C
| Humidity | 77% |
| Wind Speed | N 5 mph |
| Barometer | 29.90 in |
| Dewpoint | 52°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 21 Mar 1:15 am CDT |
Extended Forecast for
Marion IL
Overnight
Low: 56 °F
Partly Cloudy
Saturday
High: 86 °F
Sunny
Saturday Night
Low: 62 °F
Clear
Sunday
High: 85 °F
Sunny
Sunday Night
Low: 40 °F
Chance
ShowersMonday
High: 59 °F
Sunny
Monday Night
Low: 42 °F
Mostly Cloudy
Tuesday
High: 62 °F
Partly Sunny
Tuesday Night
Low: 46 °F
Slight Chance
Showers
Detailed Forecast
Overnight
Partly cloudy, with a low around 56. West southwest wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 86. Light and variable wind becoming southwest around 6 mph in the morning.
Saturday Night
Clear, with a low around 62. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 85. South southwest wind 11 to 17 mph, with gusts as high as 26 mph.
Sunday Night
A 40 percent chance of showers before 1am. Partly cloudy, with a low around 40. West wind 11 to 17 mph becoming north in the evening. Winds could gust as high as 28 mph.
Monday
Sunny, with a high near 59. North northeast wind around 10 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 42. Northeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 62. Southeast wind 3 to 6 mph.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 46. Light southeast wind.
Wednesday
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 71. South wind 5 to 8 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 56. South wind around 7 mph.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 82. South southwest wind 8 to 13 mph, with gusts as high as 21 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 50. West northwest wind around 11 mph becoming north after midnight. Winds could gust as high as 20 mph.
Friday
A chance of showers. Partly sunny, with a high near 63. North northeast wind 10 to 13 mph, with gusts as high as 20 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.92°W
37.73°N 88.92°W
12:46 am CDT Mar 21, 2026
1am CDT Mar 21, 2026-6pm CDT Mar 27, 2026
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