Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
60°F
16°C
| Humidity | 87% |
| Wind Speed | S 5 mph |
| Barometer | 30.00 in |
| Dewpoint | 56°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 16 Apr 10:55 pm CDT |
Extended Forecast for
Royalton IL
Tonight

Low: 60 °F
Mostly Clear
Friday
High: 86 °F
Mostly Sunny
then Chance
T-stormsFriday Night
Low: 53 °F
Slight Chance
T-storms then
Showers
LikelySaturday

High: 68 °F
Showers
Saturday Night

Low: 39 °F
Slight Chance
ShowersSunday

High: 68 °F
Sunny
Sunday Night

Low: 42 °F
Clear
Monday

High: 73 °F
Sunny
Monday Night

Low: 52 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 60. Light south wind.
Friday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. South wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.
Friday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 53. Southwest wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Saturday
Showers and possibly a thunderstorm before 4pm, then showers likely. High near 68. West southwest wind 14 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
Saturday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 39. Northwest wind 5 to 13 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 68. West northwest wind 5 to 14 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 42. North northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 73. Light and variable wind becoming south 5 to 8 mph in the morning.
Monday Night
Mostly clear, with a low around 52. South wind around 7 mph.
Tuesday
Sunny, with a high near 78. South southwest wind 7 to 15 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 55. South southwest wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 79. Southwest wind 6 to 10 mph.
Wednesday Night
Mostly clear, with a low around 56. South wind around 7 mph.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. South wind 6 to 11 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST
Point Forecast:
Royalton IL
37.87°N 89.11°W
37.87°N 89.11°W
10:16 pm CDT Apr 16, 2026
11pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026



