Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
37°F
3°C
| Humidity | 61% |
| Wind Speed | NE 7 mph |
| Barometer | 30.09 in |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 21 Feb 3:35 am CST |
Extended Forecast for
Marion IL
Overnight
Low: 35 °F
Slight Chance
Snow ShowersSaturday
High: 42 °F
Slight Chance
Snow Showers
then Slight
Chance
Sprinkles/SnowSaturday Night
Low: 24 °F
Mostly Clear
Sunday
High: 36 °F
Sunny
Sunday Night
Low: 17 °F
Mostly Clear
Monday
High: 34 °F
Sunny
Monday Night
Low: 17 °F
Mostly Clear
Tuesday
High: 49 °F
Partly Sunny
Tuesday Night
Low: 40 °F
Mostly Cloudy
Detailed Forecast
Overnight
A 20 percent chance of snow showers before 4am. Mostly cloudy, with a steady temperature around 35. Light north northeast wind.
Saturday
A chance of snow showers before 1pm, then a chance of sprinkles between 1pm and 2pm. Partly sunny, with a high near 42. North wind 5 to 8 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 24. Northwest wind 6 to 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 36. Northwest wind 11 to 18 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 17. Northwest wind around 14 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 34. North northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 17. Northwest wind around 6 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 around 11 mph, with gusts as high as 22 mph.
Wednesday
Partly sunny, with a high near 62. South southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 41. South southwest wind 7 to 10 mph becoming northwest after midnight.
Thursday
A chance of showers. Partly sunny, with a high near 54. Northwest wind 7 to 9 mph.
Thursday Night
A slight chance of showers. Mostly clear, with a low around 31. Northwest wind around 6 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 59. Light south southwest wind increasing to 5 to 9 mph in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.92°W
37.73°N 88.92°W
3:17 am CST Feb 21, 2026
3am CST Feb 21, 2026-6pm CST Feb 27, 2026
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