Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
33°F
1°C
| Humidity | 44% |
| Wind Speed | SE 7 mph |
| Barometer | 30.17 in |
| Dewpoint | 13°F (-11°C) |
| Visibility | 10.00 mi |
| Wind Chill | 27°F (-3°C) |
| Last update | 18 Mar 2:15 am CDT |
Extended Forecast for
Marion IL
Overnight
Low: 35 °F
Slight Chance
Snow ShowersWednesday
High: 61 °F
Slight Chance
Showers then
SunnyWednesday Night
Low: 43 °F
Increasing
CloudsThursday
High: 73 °F
Decreasing
CloudsThursday Night
Low: 48 °F
Mostly Clear
Friday
High: 78 °F
Sunny
Friday Night
Low: 54 °F
Partly Cloudy
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 56 °F
Clear
Detailed Forecast
Overnight
A slight chance of snow showers before 3am, then a slight chance of snow showers after 4am. Cloudy, with a steady temperature around 35. South southeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
A 10 percent chance of showers before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 61. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
Increasing clouds, with a low around 43. South wind 3 to 6 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 73. South southwest wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 48. Calm wind.
Friday
Sunny, with a high near 78. Calm wind becoming southwest 5 to 8 mph in the morning.
Friday Night
Partly cloudy, with a low around 54. South southwest wind around 5 mph.
Saturday
Sunny, with a high near 79. West wind 3 to 7 mph.
Saturday Night
Clear, with a low around 56. South southwest wind 5 to 7 mph.
Sunday
Sunny, with a high near 82. South southwest wind 8 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 41. North northeast wind 11 to 13 mph, with gusts as high as 22 mph.
Monday
Mostly cloudy, with a high near 57. Northeast wind 11 to 13 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 37. Northeast wind 6 to 8 mph.
Tuesday
A slight chance of showers. Partly sunny, with a high near 61. East wind 6 to 8 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 18, 2026
2am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
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