Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Mostly Cloudy
82°F
28°C
| Humidity | 74% |
| Wind Speed | S 9 mph |
| Barometer | 29.92 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 87°F (31°C) |
| Last update | 27 Jun 4:47 pm CDT |
Extended Forecast for
2 Miles NNE Royalton IL
Extreme Heat Watch June 29, 11:00am until July 2, 08:00pm
Flood Watch June 27, 05:00pm until June 28, 07:00am
Heat Advisory June 28, 12:00pm until June 28, 08:00pm
NOW until 7:00am Sun
Flood Watch
This Afternoon
High: 82 °F
Chance
T-stormsTonight
Low: 72 °F
Chance
T-stormsSunday
High: 91 °F
Becoming
SunnySunday Night
Low: 74 °F
Mostly Clear
Monday
High: 94 °F
Sunny
Monday Night
Low: 75 °F
Mostly Clear
Tuesday
High: 96 °F
Sunny
Tuesday Night
Low: 75 °F
Clear
Detailed Forecast
This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 82. Calm wind.
Tonight
A 40 percent chance of showers and thunderstorms, mainly between 1am and 4am. Mostly cloudy, with a low around 72. South southwest wind around 6 mph becoming calm in the evening.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 91. Heat index values as high as 106. Light south wind becoming south southwest 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 74. South wind 3 to 8 mph.
Monday
Sunny, with a high near 94. South southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 75. South wind 3 to 8 mph.
Tuesday
Sunny, with a high near 96. South southwest wind 3 to 7 mph.
Tuesday Night
Clear, with a low around 75. South wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 76. Light and variable wind.
Thursday
Sunny, with a high near 94. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 76. Light and variable wind.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 94. Light and variable wind.
Friday Night
Partly cloudy, with a low around 75. Calm wind.
Independence Day
A chance of showers and thunderstorms. Sunny, with a high near 93. Light and variable wind.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles NNE Royalton IL
37.9°N 89.11°W
37.9°N 89.11°W
4:41 pm CDT Jun 27, 2026
5pm CDT Jun 27, 2026-6pm CDT Jul 4, 2026
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