Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
52°F
11°C
| Humidity | 30% |
| Wind Speed | E 7 mph |
| Barometer | 30.60 in |
| Dewpoint | 21°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 50°F (10°C) |
| Last update | 28 Mar 12:45 pm CDT |
Extended Forecast for
Marion IL
This Afternoon
High: 57 °F
Sunny
Tonight
Low: 39 °F
Mostly Clear
Sunday
High: 70 °F
Mostly Sunny
Sunday Night
Low: 56 °F
Partly Cloudy
Monday
High: 79 °F
Mostly Sunny
Monday Night
Low: 65 °F
Partly Cloudy
Tuesday
High: 83 °F
Mostly Sunny
then Mostly
Sunny and
BreezyTuesday Night
Low: 53 °F
Chance
T-storms then
Showers
LikelyWednesday
High: 63 °F
Showers
Detailed Forecast
This Afternoon
Sunny, with a high near 57. East southeast wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 39. Light south southeast wind.
Sunday
Mostly sunny, with a high near 70. South southwest wind 6 to 15 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 56. South wind 9 to 11 mph, with gusts as high as 24 mph.
Monday
Mostly sunny, with a high near 79. South southwest wind 11 to 18 mph, with gusts as high as 29 mph.
Monday Night
Partly cloudy, with a low around 65. South southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 83. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 31 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. South southwest wind 10 to 14 mph becoming north northwest after midnight. Winds could gust as high as 24 mph.
Wednesday
Showers. Mostly cloudy, with a high near 63. North wind 10 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 45. Northeast wind 9 to 11 mph, with gusts as high as 18 mph.
Thursday
Showers likely. Mostly cloudy, with a high near 60. East wind around 11 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 47. East northeast wind 6 to 8 mph.
Friday
A chance of showers. Mostly cloudy, with a high near 72. East wind 6 to 9 mph becoming south in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.92°W
37.73°N 88.92°W
1:01 pm CDT Mar 28, 2026
1pm CDT Mar 28, 2026-6pm CDT Apr 3, 2026
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