Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
34°F
1°C
| Humidity | 44% |
| Wind Speed | SW 13 G 26 mph |
| Barometer | 29.77 in |
| Dewpoint | 14°F (-10°C) |
| Visibility | 10.00 mi |
| Wind Chill | 25°F (-4°C) |
| Last update | 16 Jan 3:55 am CST |
Extended Forecast for
Marion IL
Today
High: 44 °F
Partly Sunny
then Chance
ShowersTonight
Low: 25 °F
Slight Chance
Rain/Snow
then Slight
Chance Snow
ShowersSaturday
High: 33 °F
Mostly Sunny
Saturday Night
Low: 14 °F
Mostly Clear
Sunday
High: 31 °F
Sunny
Sunday Night
Low: 16 °F
Partly Cloudy
M.L.King Day
High: 26 °F
Sunny
Monday Night
Low: 11 °F
Mostly Clear
Tuesday
High: 36 °F
Sunny
Detailed Forecast
Today
A 30 percent chance of showers, mainly before 3pm. Mostly cloudy, with a high near 44. West southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Tonight
A slight chance of rain and snow showers before 1am, then a slight chance of snow showers between 1am and 4am. Mostly cloudy, with a low around 25. West southwest wind around 8 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 33. West northwest wind 7 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 14. West northwest wind 3 to 7 mph.
Sunday
Sunny, with a high near 31. Light west wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 16. South southwest wind 8 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
M.L.King Day
Sunny, with a high near 26. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 11. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 36. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 26. South southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 49. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 31. South southwest wind around 7 mph.
Thursday
A slight chance of showers. Partly sunny, with a high near 42. South wind 6 to 8 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.92°W
37.73°N 88.92°W
3:16 am CST Jan 16, 2026
4am CST Jan 16, 2026-6pm CST Jan 22, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
