Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast and Breezy
46°F
8°C
| Humidity | 93% |
| Wind Speed | N 23 mph |
| Barometer | 29.98 in |
| Dewpoint | 45°F (7°C) |
| Visibility | 10.00 mi |
| Wind Chill | 38°F (3°C) |
| Last update | 11 Mar 4:45 pm CDT |
Extended Forecast for
Marion IL
Tonight
Low: 32 °F
Cloudy and
Breezy then
Partly CloudyThursday

High: 54 °F
Sunny
Thursday Night

Low: 42 °F
Mostly Clear
Friday

High: 64 °F
Mostly Sunny
Friday Night

Low: 37 °F
Partly Cloudy
Saturday

High: 65 °F
Mostly Sunny
Saturday Night

Low: 52 °F
Mostly Cloudy
Sunday

High: 71 °F
Showers
Likely and
BreezySunday Night
Low: 27 °F
Showers
Likely and
Breezy then
Rain/Snow
Likely and
Blustery
Detailed Forecast
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 32. Breezy, with a north northwest wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 mph.
Thursday
Sunny, with a high near 54. Light and variable wind becoming west northwest 5 to 7 mph in the morning.
Thursday Night
Mostly clear, with a low around 42. South wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 28 mph.
Friday
Mostly sunny, with a high near 64. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 37. Northwest wind around 6 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 65. East northeast wind 6 to 9 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 52. East southeast wind 6 to 9 mph, with gusts as high as 18 mph.
Sunday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Breezy, with a south wind 13 to 23 mph, with gusts as high as 36 mph.
Sunday Night
Rain showers likely before 1am, then a slight chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 27. Breezy, with a west northwest wind 20 to 22 mph, with gusts as high as 31 mph.
Monday
Mostly sunny, with a high near 40. Northwest wind around 17 mph, with gusts as high as 26 mph.
Monday Night
Mostly clear, with a low around 19. Northwest wind 5 to 11 mph.
Tuesday
Mostly sunny, with a high near 44. North northwest wind 5 to 8 mph becoming southwest in the afternoon.
Tuesday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 31. South wind 5 to 7 mph.
Wednesday
Mostly cloudy, with a high near 56. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.92°W
37.73°N 88.92°W
1:26 pm CDT Mar 11, 2026
5pm CDT Mar 11, 2026-6pm CDT Mar 18, 2026



