Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
25°F
-4°C
| Humidity | 47% |
| Wind Speed | NW 10 G 16 mph |
| Barometer | 30.16 in |
| Dewpoint | 7°F (-14°C) |
| Visibility | 10.00 mi |
| Wind Chill | 15°F (-9°C) |
| Last update | 17 Mar 1:35 am CDT |
Extended Forecast for
Marion IL
Overnight
Low: 18 °F
Mostly Cloudy
Tuesday
High: 38 °F
Mostly Sunny
Tuesday Night
Low: 31 °F
Slight Chance
Snow Showers
then Chance
Rain/SnowWednesday
High: 61 °F
Chance
Showers then
SunnyWednesday Night
Low: 44 °F
Mostly Cloudy
Thursday
High: 71 °F
Mostly Sunny
Thursday Night
Low: 49 °F
Mostly Clear
Friday
High: 76 °F
Mostly Sunny
Friday Night
Low: 51 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 18. Northwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 38. Northwest wind 5 to 9 mph.
Tuesday Night
A chance of snow showers after 9pm, mixing with rain after 5am. Mostly cloudy, with a low around 31. Light southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers before 7am. Cloudy through mid morning, then gradual clearing, with a high near 61. South wind 11 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly cloudy, with a low around 44. South southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 71. South wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 49. Light south wind.
Friday
Mostly sunny, with a high near 76. Light and variable wind becoming west southwest around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 51. South southwest wind 3 to 5 mph.
Saturday
Sunny, with a high near 78. Southwest wind 5 to 8 mph.
Saturday Night
Clear, with a low around 56. South southwest wind 6 to 8 mph.
Sunday
Sunny, with a high near 78. South southwest wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 45. North northeast wind around 11 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 60. Northeast wind 9 to 11 mph, with gusts as high as 18 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
1:21 am CDT Mar 17, 2026
1am CDT Mar 17, 2026-6pm CDT Mar 23, 2026
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