Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
91°F
33°C
| Humidity | 56% |
| Wind Speed | S 9 mph |
| Barometer | 30.04 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 100°F (38°C) |
| Last update | 1 Jul 6:45 pm CDT |
Extended Forecast for
Carterville IL
Extreme Heat Warning July 1, 06:56pm until July 3, 08:00pm
NOW until 8:00pm Fri
Extreme Heat Warning
Tonight
Low: 75 °F
Clear
Thursday
High: 96 °F
Sunny
Thursday Night
Low: 76 °F
Clear
Friday
High: 96 °F
Slight Chance
T-stormsFriday Night
Low: 75 °F
Mostly Clear
Independence Day
High: 95 °F
Slight Chance
T-stormsSaturday Night
Low: 74 °F
Chance
ShowersSunday
High: 94 °F
Chance
T-storms
Detailed Forecast
Tonight
Clear, with a low around 75. South wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 96. Heat index values as high as 109. Calm wind becoming south 5 to 7 mph in the afternoon.
Thursday Night
Clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Friday
A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 96. Heat index values as high as 107. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 75. Calm wind.
Independence Day
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 95. Light and variable wind.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 74. Calm wind.
Sunday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94. Calm wind.
Sunday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74. Calm wind.
Monday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Light and variable wind.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Light and variable wind.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Light west wind.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Carterville IL
37.76°N 89.09°W
37.76°N 89.09°W
6:16 pm CDT Jul 1, 2026
6pm CDT Jul 1, 2026-6pm CDT Jul 8, 2026
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