Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Partly Cloudy
51°F
11°C
| Humidity | 40% |
| Wind Speed | Calm |
| Barometer | 30.16 in |
| Dewpoint | 28°F (-2°C) |
| Visibility | 10.00 mi |
| Last update | 25 Mar 1:55 am CDT |
Extended Forecast for
Marion IL
Overnight
Low: 45 °F
Partly Cloudy
Wednesday
High: 75 °F
Mostly Sunny
Wednesday Night
Low: 63 °F
Mostly Clear
Thursday
High: 86 °F
Sunny
Thursday Night
Low: 45 °F
Partly Cloudy
then Showers
LikelyFriday
High: 55 °F
Showers
LikelyFriday Night
Low: 34 °F
Mostly Clear
Saturday
High: 59 °F
Sunny
Saturday Night
Low: 40 °F
Partly Cloudy
Detailed Forecast
Overnight
Partly cloudy, with a low around 45. Calm wind.
Wednesday
Mostly sunny, with a high near 75. Light and variable wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 63. 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 28 mph.
Thursday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 45. South southwest wind 11 to 15 mph becoming north after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.
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 34. North northeast wind 5 to 11 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 59. Light and variable wind becoming east northeast around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 40. Light southeast wind.
Sunday
Partly sunny, with a high near 66. South wind 5 to 9 mph.
Sunday Night
Mostly cloudy, with a low around 55. South wind 7 to 9 mph.
Monday
Mostly sunny, with a high near 79. South southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 62. 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 80. South southwest wind 10 to 14 mph, with gusts as high as 23 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
1:26 am CDT Mar 25, 2026
2am CDT Mar 25, 2026-6pm CDT Mar 31, 2026
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