Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
81°F
27°C
| Humidity | 79% |
| Wind Speed | S 6 mph |
| Barometer | 30.10 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 86°F (30°C) |
| Last update | 15 Aug 7:45 am CDT |
Extended Forecast for
4 Miles W Goreville IL
Extreme Heat Warning August 15, 08:26am until August 16, 08:00pm
NOW until 8:00pm Sun
Extreme Heat Warning
Today
High: 95 °F
Sunny
Tonight
Low: 75 °F
Clear
Sunday
High: 97 °F
Hot
Sunday Night
Low: 73 °F
Chance
T-stormsMonday
High: 88 °F
Mostly Sunny
then Slight
Chance
T-stormsMonday Night
Low: 68 °F
Partly Cloudy
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 72 °F
Mostly Clear
Detailed Forecast
Today
Sunny, with a high near 95. South southwest wind 5 to 7 mph.
Tonight
Clear, with a low around 75. South southwest wind around 6 mph.
Sunday
Mostly sunny and hot, with a high near 97. Heat index values as high as 106. West southwest wind 5 to 7 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Light and variable wind becoming west northwest around 5 mph after midnight.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. North wind 5 to 7 mph.
Monday Night
Partly cloudy, with a low around 68. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89. Calm wind.
Tuesday Night
Mostly clear, with a low around 72. Calm wind becoming south around 6 mph after midnight.
Wednesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. West wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 70. North wind 6 to 8 mph.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. North northeast wind around 7 mph.
Thursday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 65. Northeast wind around 5 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Northeast wind 5 to 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles W Goreville IL
37.56°N 89.04°W
37.56°N 89.04°W
7:01 am CDT Aug 15, 2026
8am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
