Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Partly Cloudy
50°F
10°C
| Humidity | 71% |
| Wind Speed | NE 9 mph |
| Barometer | 30.55 in |
| Dewpoint | 41°F (5°C) |
| Visibility | 10.00 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 17 Oct 9:45 am CDT |
Extended Forecast for
Royalton IL
Frost Advisory October 17, 09:00pm until October 18, 08:00am
Today
High: 62 °F
Sunny
Tonight
Low: 33 °F
Clear then
Areas FrostSunday
High: 68 °F
Areas Frost
then SunnySunday Night
Low: 37 °F
Clear
Monday
High: 72 °F
Sunny
Monday Night
Low: 41 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 43 °F
Mostly Clear
Wednesday
High: 78 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 62. North northeast wind 8 to 10 mph.
Tonight
Areas of frost after 4am. Otherwise, clear, with a low around 33. Calm wind.
Sunday
Areas of frost before 9am. Otherwise, sunny, with a high near 68. Calm wind becoming southeast around 5 mph in the morning.
Sunday Night
Clear, with a low around 37. Calm wind.
Monday
Sunny, with a high near 72. Calm wind.
Monday Night
Mostly clear, with a low around 41. Calm wind.
Tuesday
Sunny, with a high near 75. Calm wind becoming east northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 43. Calm wind.
Wednesday
Sunny, with a high near 78. Calm wind.
Wednesday Night
Clear, with a low around 45. Calm wind.
Thursday
Sunny, with a high near 82. Light north wind.
Thursday Night
Mostly clear, with a low around 48. Calm wind.
Friday
Sunny, with a high near 83. Calm wind becoming east around 6 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Royalton IL
37.89°N 89.08°W
37.89°N 89.08°W
5:31 am CDT Oct 17, 2026
9am CDT Oct 17, 2026-6pm CDT Oct 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
