Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
93°F
34°C
| Humidity | 59% |
| Wind Speed | SW 9 mph |
| Barometer | 30.05 in |
| Dewpoint | 77°F (25°C) |
| Visibility | 10.00 mi |
| Heat Index | 107°F (42°C) |
| Last update | 15 Aug 5:45 pm CDT |
Extended Forecast for
5 Miles N Goreville IL
Extreme Heat Warning August 15, 05:50pm until August 16, 08:00pm
NOW until 8:00pm Sun

Extreme Heat Warning
Tonight

Low: 75 °F
Mostly Clear
Sunday

High: 98 °F
Hot
Sunday Night

Low: 73 °F
Chance
T-stormsMonday

High: 88 °F
Chance
ShowersMonday Night

Low: 67 °F
Mostly Clear
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 75. South southwest wind around 5 mph becoming calm.
Sunday
Mostly sunny and hot, with a high near 98. Heat index values as high as 106. West southwest wind 5 to 7 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 11pm. Partly cloudy, with a low around 73. Light and variable wind.
Monday
A 40 percent chance of showers before 1pm. Partly sunny, with a high near 88. North northwest wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 67. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 90. Calm wind.
Tuesday Night
Mostly clear, with a low around 70. Light and variable wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. South wind 5 to 9 mph becoming west southwest in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. North wind around 6 mph.
Thursday
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85. North northeast wind 5 to 8 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. North northeast wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers. Mostly sunny, with a high near 85. Calm wind becoming north northeast 5 to 7 mph in the morning.
Friday Night
Partly cloudy, with a low around 64. Light east northeast wind.
Saturday
Mostly sunny, with a high near 86. Calm wind becoming north around 6 mph in the morning.
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ABOUT THIS FORECAST
Point Forecast:
5 Miles N Goreville IL
37.62°N 88.95°W
37.62°N 88.95°W
4:36 pm CDT Aug 15, 2026
5pm CDT Aug 15, 2026-6pm CDT Aug 22, 2026



