Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
46°F
8°C
| Humidity | 43% |
| Wind Speed | N 9 mph |
| Barometer | 29.96 in |
| Dewpoint | 25°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 20 Feb 5:47 pm CST |
Extended Forecast for
Marion IL
Tonight
Low: 31 °F
Increasing
CloudsSaturday
High: 44 °F
Chance
Sprinkles/Flurries
then Partly
SunnySaturday Night
Low: 24 °F
Mostly Clear
Sunday
High: 37 °F
Sunny
Sunday Night
Low: 18 °F
Mostly Clear
Monday
High: 35 °F
Sunny
Monday Night
Low: 17 °F
Mostly Clear
Tuesday
High: 49 °F
Partly Sunny
Tuesday Night
Low: 40 °F
Mostly Cloudy
Detailed Forecast
Tonight
Increasing clouds, with a low around 31. Light north northwest wind.
Saturday
A chance of sprinkles and flurries before 10am, then a chance of sprinkles between 10am and 3pm. Partly sunny, with a high near 44. North wind 3 to 8 mph.
Saturday Night
Mostly clear, with a low around 24. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 37. Northwest wind 10 to 18 mph, with gusts as high as 29 mph.
Sunday Night
Mostly clear, with a low around 18. Northwest wind 11 to 13 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 35. North northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 17. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 49. Light south wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 40. South southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Wednesday
A slight chance of showers after noon. Mostly cloudy, with a high near 61. South southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 39. South southwest wind 7 to 10 mph becoming northwest after midnight.
Thursday
A chance of showers. Partly sunny, with a high near 54. North northwest wind 6 to 9 mph.
Thursday Night
A slight chance of showers. Mostly clear, with a low around 32. North northwest wind around 5 mph becoming south southwest after midnight.
Friday
Sunny, with a high near 58. South southwest wind 5 to 9 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
5:41 pm CST Feb 20, 2026
5pm CST Feb 20, 2026-6pm CST Feb 27, 2026
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