Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
59°F
15°C
| Humidity | 88% |
| Wind Speed | Calm |
| Barometer | 30.10 in |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 10 Oct 8:45 am CDT |
Extended Forecast for
Carterville IL
Today
High: 74 °F
Mostly Cloudy
then Slight
Chance
ShowersTonight
Low: 55 °F
Chance
Showers then
CloudySunday
High: 82 °F
Becoming
SunnySunday Night
Low: 61 °F
Mostly Clear
Columbus Day
High: 89 °F
Sunny
Monday Night
Low: 66 °F
Clear
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 65 °F
Mostly Clear
then Slight
Chance
ShowersWednesday
High: 82 °F
Chance
Showers
Detailed Forecast
Today
A 20 percent chance of showers after 4pm. Cloudy, with a high near 74. Calm wind becoming east 5 to 7 mph in the afternoon.
Tonight
A 40 percent chance of showers, mainly before 11pm. Cloudy, with a low around 55. Northeast wind 5 to 9 mph.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 82. West wind 3 to 6 mph.
Sunday Night
Mostly clear, with a low around 61. Light south wind.
Columbus Day
Sunny, with a high near 89. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Clear, with a low around 66. Southwest wind 6 to 8 mph.
Tuesday
Sunny, with a high near 89. West southwest wind 6 to 8 mph.
Tuesday Night
A slight chance of showers after 1am. Mostly clear, with a low around 65. South southwest wind around 5 mph becoming west northwest after midnight.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82. East southeast wind 5 to 8 mph.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 61. East southeast wind around 6 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Southeast wind 6 to 10 mph becoming southwest in the afternoon.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 56. South southwest wind 5 to 7 mph becoming light and variable.
Friday
A slight chance of showers. Partly sunny, with a high near 72. Northwest wind 6 to 13 mph, with gusts as high as 20 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Carterville IL
37.74°N 89.09°W
37.74°N 89.09°W
8:01 am CDT Oct 10, 2026
8am CDT Oct 10, 2026-6pm CDT Oct 16, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
