Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
80°F
27°C
| Humidity | 72% |
| Wind Speed | SW 6 mph |
| Barometer | 30.05 in |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 16 Aug 2:15 am CDT |
Extended Forecast for
3 Miles ENE Goreville IL
Extreme Heat Warning August 16, 02:31am until August 16, 08:00pm
NOW until 8:00pm Sun
Extreme Heat Warning
Overnight
Low: 78 °F
Clear
Sunday
High: 95 °F
Increasing
CloudsSunday Night
Low: 74 °F
Chance
T-storms then
Chance
ShowersMonday
High: 87 °F
Slight Chance
T-storms then
Mostly SunnyMonday Night
Low: 68 °F
Mostly Clear
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 71 °F
Mostly Clear
Wednesday
High: 90 °F
Chance
Showers
Detailed Forecast
Overnight
Clear, with a steady temperature around 78. Southwest wind around 7 mph.
Sunday
Increasing clouds, with a high near 95. Heat index values as high as 105. West southwest wind around 6 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 74. Light and variable wind.
Monday
A 20 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 87. North northwest wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 68. Light north northeast wind.
Tuesday
Sunny, with a high near 89. Calm wind.
Tuesday Night
Mostly clear, with a low around 71. Light and variable wind.
Wednesday
A chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 90. Calm wind becoming south around 6 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Northeast wind 3 to 5 mph.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84. North northeast wind 3 to 6 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Light northeast wind.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming north around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 66. Calm wind.
Saturday
Mostly sunny, with a high near 85. Calm wind becoming north northwest around 6 mph in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles ENE Goreville IL
37.58°N 88.93°W
37.58°N 88.93°W
1:26 am CDT Aug 16, 2026
2am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
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