Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
71°F
22°C
| Humidity | 98% |
| Wind Speed | Calm |
| Barometer | 29.90 in |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Last update | 29 Jul 1:55 am CDT |
Extended Forecast for
Marion IL
Overnight
Low: 68 °F
Mostly Clear
Wednesday
High: 90 °F
Sunny
Wednesday Night
Low: 66 °F
Mostly Clear
Thursday
High: 89 °F
Sunny
Thursday Night
Low: 67 °F
Partly Cloudy
Friday
High: 89 °F
Partly Sunny
then Slight
Chance
T-stormsFriday Night
Low: 69 °F
Showers
Saturday
High: 84 °F
Chance
ShowersSaturday Night
Low: 66 °F
Chance
Showers
Detailed Forecast
Overnight
Mostly clear, with a low around 68. North northeast wind 3 to 5 mph.
Wednesday
Sunny, with a high near 90. North northeast wind 3 to 8 mph.
Wednesday Night
Mostly clear, with a low around 66. North northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 89. Calm wind becoming east around 6 mph in the morning.
Thursday Night
Partly cloudy, with a low around 67. East wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 89. Calm wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 20%.
Friday Night
Showers and possibly a thunderstorm. Low around 69. South southeast wind 6 to 8 mph. Chance of precipitation is 80%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. West northwest wind 7 to 14 mph, with gusts as high as 21 mph.
Saturday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 66. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.
Sunday
A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 84. North wind 8 to 11 mph, with gusts as high as 18 mph.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. North northeast wind 5 to 8 mph becoming calm in the evening.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming east northeast 5 to 7 mph in the morning.
Monday Night
Mostly clear, with a low around 67. Light and variable wind.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Calm wind becoming east around 5 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.92°W
37.73°N 88.92°W
1:26 am CDT Jul 29, 2026
2am CDT Jul 29, 2026-6pm CDT Aug 4, 2026
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