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- March 18th marks the 100th anniversary of the Tri-State Tornado. Check out our updated website and story map.
- Preliminary Summary of March 14-15, 2025 Severe Weather
- Flood Safety Awareness Week 2025
- 2025 Skywarn Storm Spotter Training Classes
- Weather observers needed across Illinois, Indiana, Kentucky, and Missouri - Join CoCoRaHS!
Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
A Few Clouds
61°F
16°C
Humidity | 27% |
Wind Speed | S 16 G 25 mph |
Barometer | 30.10 in |
Dewpoint | 27°F (-3°C) |
Visibility | 10.00 mi |
Last update | 17 Mar 4:45 pm CDT |
Extended Forecast for
Royalton IL
Tonight
Low: 46 °F
Mostly Clear
Tuesday
High: 76 °F
Sunny and
BreezyTuesday Night
Low: 56 °F
Mostly Cloudy
and BreezyWednesday
High: 72 °F
Breezy.
Chance
Showers then
ShowersWednesday Night
Low: 36 °F
Chance
Showers and
BreezyThursday
High: 52 °F
Slight Chance
Showers and
BreezyThursday Night
Low: 34 °F
Mostly Clear
Friday
High: 61 °F
Mostly Sunny
Friday Night
Low: 45 °F
Chance
Showers
Detailed Forecast
Tonight
Mostly clear, with a low around 46. South southwest wind 10 to 16 mph, with gusts as high as 31 mph.
Tuesday
Sunny, with a high near 76. Breezy, with a south wind 14 to 23 mph, with gusts as high as 38 mph.
Tuesday Night
Mostly cloudy, with a low around 56. Breezy, with a south wind 20 to 23 mph, with gusts as high as 33 mph.
Wednesday
Showers, mainly after 1pm. High near 72. Breezy, with a south wind 22 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 80%.
Wednesday Night
A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 36. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 33 mph.
Thursday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 52. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 29 mph.
Thursday Night
Mostly clear, with a low around 34. Northwest wind 5 to 7 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 61. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.
Friday Night
A chance of showers. Partly cloudy, with a low around 45. South wind around 11 mph becoming west southwest after midnight. Winds could gust as high as 21 mph.
Saturday
Sunny, with a high near 63. West northwest wind 9 to 11 mph, with gusts as high as 18 mph.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 41. Light and variable wind becoming east southeast around 6 mph after midnight.
Sunday
A chance of showers. Partly sunny, with a high near 65. South wind 6 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Showers likely. Mostly cloudy, with a low around 44. South southwest wind 8 to 10 mph.
Monday
A chance of showers. Mostly sunny, with a high near 60. West wind 8 to 15 mph, with gusts as high as 23 mph.
Click Map For Forecast
ABOUT THIS FORECAST
Point Forecast:
Royalton IL
37.87°N 89.11°W
37.87°N 89.11°W
5:03 pm CDT Mar 17, 2025
5pm CDT Mar 17, 2025-6pm CDT Mar 24, 2025