Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
48°F
9°C
| Humidity | 94% |
| Wind Speed | N 12 mph |
| Barometer | 30.00 in |
| Dewpoint | 46°F (8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 43°F (6°C) |
| Last update | 18 Apr 10:47 am CDT |
Extended Forecast for
Marion IL
Today
High: 58 °F
Chance
ShowersTonight
Low: 40 °F
Decreasing
CloudsSunday
High: 69 °F
Sunny
Sunday Night
Low: 42 °F
Mostly Clear
Monday
High: 68 °F
Sunny
Monday Night
Low: 51 °F
Clear
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 57 °F
Mostly Clear
Wednesday
High: 82 °F
Sunny
Detailed Forecast
Today
A 30 percent chance of showers, mainly before 3pm. Mostly cloudy, with a steady temperature around 58. North northwest wind around 14 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 40. North northwest wind 5 to 9 mph becoming calm after midnight.
Sunday
Sunny, with a high near 69. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 42. West wind around 5 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 68. Light and variable wind becoming east southeast around 6 mph in the morning.
Monday Night
Clear, with a low around 51. Southeast wind 3 to 6 mph.
Tuesday
Sunny, with a high near 79. Southwest wind 6 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 57. Southwest wind 6 to 9 mph.
Wednesday
Sunny, with a high near 82. Southwest wind 5 to 9 mph.
Wednesday Night
Clear, with a low around 60. South wind around 6 mph.
Thursday
Sunny, with a high near 84. South wind 6 to 15 mph, with gusts as high as 23 mph.
Thursday Night
A chance of showers. Partly cloudy, with a low around 63. South wind around 11 mph, with gusts as high as 21 mph.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 78. South southwest wind 11 to 15 mph, with gusts as high as 25 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.95°W
37.73°N 88.95°W
10:46 am CDT Apr 18, 2026
11am CDT Apr 18, 2026-6pm CDT Apr 24, 2026
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