Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
23°F
-5°C
| Humidity | 58% |
| Wind Speed | NW 16 G 24 mph |
| Barometer | 30.27 in |
| Dewpoint | 10°F (-12°C) |
| Visibility | 10.00 mi |
| Wind Chill | 10°F (-12°C) |
| Last update | 17 Jan 6:45 pm CST |
Extended Forecast for
Marion IL
Tonight
Low: 14 °F
Partly Cloudy
Sunday
High: 32 °F
Chance
FlurriesSunday Night
Low: 15 °F
Partly Cloudy
M.L.King Day
High: 23 °F
Mostly Sunny
Monday Night
Low: 10 °F
Mostly Clear
Tuesday
High: 35 °F
Sunny
Tuesday Night
Low: 26 °F
Mostly Clear
Wednesday
High: 47 °F
Partly Sunny
Wednesday Night
Low: 23 °F
Partly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 14. West northwest wind 5 to 9 mph becoming calm after midnight.
Sunday
A chance of flurries after noon. Increasing clouds, with a high near 32. Light west wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 15. Southwest wind 9 to 11 mph becoming northwest after midnight. Winds could gust as high as 22 mph.
M.L.King Day
Mostly sunny, with a high near 23. Northwest wind 6 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 10. Light and variable wind.
Tuesday
Sunny, with a high near 35. Light south southwest wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 26. South southwest wind 8 to 13 mph, with gusts as high as 24 mph.
Wednesday
Partly sunny, with a high near 47. Southwest wind 7 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 23. West southwest wind around 6 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 38. Light and variable wind becoming northwest 5 to 7 mph in the morning.
Thursday Night
Partly cloudy, with a low around 24. South wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 45. South southwest wind 6 to 10 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 26. South southwest wind around 7 mph becoming north northeast after midnight.
Saturday
A chance of showers. Mostly cloudy, with a high near 38. Northeast wind 7 to 10 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
4:57 pm CST Jan 17, 2026
7pm CST Jan 17, 2026-6pm CST Jan 24, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
