Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
79°F
26°C
| Humidity | 87% |
| Wind Speed | SW 5 mph |
| Barometer | 30.06 in |
| Dewpoint | 75°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 15 Aug 10:55 pm CDT |
Extended Forecast for
7 Miles WSW Goreville IL
Extreme Heat Warning August 15, 11:12pm until August 16, 08:00pm
NOW until 8:00pm Sun

Extreme Heat Warning
Tonight

Low: 74 °F
Mostly Clear
Sunday

High: 97 °F
Hot
Sunday Night

Low: 72 °F
Chance
T-stormsMonday

High: 88 °F
Chance
ShowersMonday Night

Low: 67 °F
Partly Cloudy
Tuesday

High: 90 °F
Sunny
Tuesday Night

Low: 70 °F
Mostly Clear
Wednesday

High: 93 °F
Slight Chance
T-storms
Detailed Forecast
Tonight
Mostly clear, with a low around 74. Light south wind.
Sunday
Sunny and hot, with a high near 97. Heat index values as high as 106. West southwest wind 3 to 6 mph.
Sunday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 72. Light north wind. Chance of precipitation is 30%.
Monday
A slight chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Mostly sunny, with a high near 88. North northwest wind 5 to 7 mph. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 67. Light north wind.
Tuesday
Sunny, with a high near 90. Calm wind.
Tuesday Night
Mostly clear, with a low around 70. Calm wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Light and variable wind becoming southwest 5 to 7 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. North wind 3 to 5 mph.
Thursday
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85. North northeast wind around 6 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Light northeast wind.
Friday
A slight chance of showers. Mostly sunny, with a high near 85. Calm wind becoming northeast around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 65. Light east northeast wind.
Saturday
Mostly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
7 Miles WSW Goreville IL
37.52°N 89.1°W
37.52°N 89.1°W
8:15 pm CDT Aug 15, 2026
11pm CDT Aug 15, 2026-6pm CDT Aug 22, 2026



