Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
64°F
18°C
| Humidity | 24% |
| Wind Speed | E 6 mph |
| Barometer | 30.20 in |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Last update | 24 Mar 4:47 pm CDT |
Extended Forecast for
Marion IL
Tonight
Low: 45 °F
Mostly Cloudy
Wednesday
High: 75 °F
Mostly Sunny
Wednesday Night
Low: 61 °F
Mostly Clear
Thursday
High: 86 °F
Sunny
Thursday Night
Low: 46 °F
Partly Cloudy
then Chance
T-stormsFriday
High: 55 °F
Showers
LikelyFriday Night
Low: 33 °F
Mostly Clear
Saturday
High: 59 °F
Sunny
Saturday Night
Low: 39 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 45. East wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 75. Light south southeast wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 61. South wind 8 to 11 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 86. South southwest wind 11 to 17 mph, with gusts as high as 26 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 46. South southwest wind 11 to 14 mph becoming north after midnight. Winds could gust as high as 24 mph.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 55. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Friday Night
Mostly clear, with a low around 33. North wind 6 to 11 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 59. East wind around 6 mph.
Saturday Night
Partly cloudy, with a low around 39. Light southeast wind.
Sunday
Mostly sunny, with a high near 65. Light southeast wind becoming south 5 to 9 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 51. South wind around 8 mph.
Monday
Mostly sunny, with a high near 78. South southwest wind 8 to 13 mph, with gusts as high as 21 mph.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 59. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. South southwest wind 10 to 14 mph, with gusts as high as 22 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
4:31 pm CDT Mar 24, 2026
5pm CDT Mar 24, 2026-6pm CDT Mar 31, 2026
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