Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Partly Cloudy
39°F
4°C
| Humidity | 75% |
| Wind Speed | S 17 G 24 mph |
| Barometer | 29.91 in |
| Dewpoint | 32°F (0°C) |
| Visibility | NA |
| Wind Chill | 30°F (-1°C) |
| Last update | 9 Dec 1:45 pm CST |
Extended Forecast for
Marion IL
This Afternoon
High: 42 °F
Mostly Sunny
Tonight
Low: 41 °F⇑
Breezy.
Mostly Cloudy
then Slight
Chance
ShowersWednesday
High: 46 °F⇓
Mostly Cloudy
and BreezyWednesday Night
Low: 26 °F
Mostly Cloudy
Thursday
High: 40 °F
Mostly Cloudy
Thursday Night
Low: 35 °F
Mostly Cloudy
Friday
High: 50 °F
Mostly Sunny
Friday Night
Low: 25 °F
Mostly Cloudy
Saturday
High: 39 °F
Partly Sunny
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 42. South southwest wind 14 to 17 mph, with gusts as high as 32 mph.
Tonight
A slight chance of showers before 4am, then a slight chance of showers after 5am. Mostly cloudy, with a temperature rising to around 45 by 4am. Breezy, with a south southwest wind 16 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a temperature rising to near 46 by 9am, then falling to around 38 during the remainder of the day. Breezy, with a west southwest wind 13 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 37 mph.
Wednesday Night
Mostly cloudy, with a low around 26. Northwest wind 5 to 9 mph becoming calm after midnight.
Thursday
Mostly cloudy, with a high near 40. Calm wind becoming west southwest around 6 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 35. South wind around 6 mph.
Friday
Mostly sunny, with a high near 50. Southwest wind 6 to 10 mph becoming north northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 25. North northwest wind 5 to 7 mph.
Saturday
Partly sunny, with a high near 39. North wind 5 to 7 mph.
Saturday Night
A slight chance of rain and snow showers before midnight. Mostly cloudy, with a low around 14. North wind 6 to 8 mph.
Sunday
Mostly sunny, with a high near 26. North wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 15. North northeast wind around 5 mph becoming calm in the evening.
Monday
A slight chance of showers. Mostly sunny, with a high near 38. Calm wind becoming south southeast 5 to 7 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
2:11 pm CST Dec 9, 2025
2pm CST Dec 9, 2025-6pm CST Dec 15, 2025
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