Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
37°F
3°C
| Humidity | 66% |
| Wind Speed | S 7 mph |
| Barometer | 30.12 in |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 13 Jan 1:55 am CST |
Extended Forecast for
Marion IL
Overnight

Low: 38 °F
Mostly Clear
Tuesday

High: 60 °F
Mostly Sunny
Tuesday Night

Low: 41 °F
Chance
ShowersWednesday

High: 46 °F
Partly Sunny
Wednesday Night

Low: 19 °F
Mostly Clear
Thursday

High: 32 °F
Sunny
Thursday Night

Low: 24 °F
Mostly Cloudy
Friday

High: 46 °F
Partly Sunny
Friday Night

Low: 24 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 38. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 60. Southwest wind 10 to 16 mph, with gusts as high as 30 mph.
Tuesday Night
A 40 percent chance of showers, mainly between 10pm and 1am. Cloudy, with a low around 41. Southwest wind 5 to 10 mph becoming light and variable.
Wednesday
Partly sunny, with a high near 46. North northwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
Mostly clear, with a low around 19. North northwest wind 6 to 16 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 32. North northwest wind 5 to 7 mph becoming light and variable in the afternoon.
Thursday Night
Mostly cloudy, with a low around 24. Light south southwest wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 22 mph.
Friday
Partly sunny, with a high near 46. West wind 10 to 15 mph, with gusts as high as 24 mph.
Friday Night
Mostly cloudy, with a low around 24. West wind 7 to 9 mph.
Saturday
Partly sunny, with a high near 34. West wind 9 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Mostly cloudy, with a low around 12. West northwest wind 7 to 9 mph.
Sunday
Mostly sunny, with a high near 27. West northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 13. West wind around 7 mph.
M.L.King Day
Sunny, with a high near 36. West southwest wind 6 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
1:51 am CST Jan 13, 2026
2am CST Jan 13, 2026-6pm CST Jan 19, 2026


