Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
73°F
23°C
| Humidity | 63% |
| Wind Speed | S 8 mph |
| Barometer | 30.03 in |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 3 Apr 8:55 pm CDT |
Extended Forecast for
Marion IL
Tonight
Low: 61 °F
Mostly Cloudy
then Showers
LikelySaturday
High: 70 °F⇓
Heavy Rain
Saturday Night
Low: 40 °F
Decreasing
CloudsSunday
High: 61 °F
Sunny
Sunday Night
Low: 39 °F
Clear
Monday
High: 66 °F
Sunny
Monday Night
Low: 40 °F
Partly Cloudy
Tuesday
High: 59 °F
Mostly Sunny
Tuesday Night
Low: 41 °F
Partly Cloudy
Detailed Forecast
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 61. South wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Saturday
Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then a slight chance of showers after 4pm. Some of the storms could produce heavy rainfall. Temperature falling to around 60 by 5pm. Southwest wind 11 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 40. Northwest wind 6 to 9 mph.
Sunday
Sunny, with a high near 61. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Clear, with a low around 39. North northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 66. Calm wind becoming northwest 5 to 8 mph in the morning.
Monday Night
Partly cloudy, with a low around 40. North wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 59. Northeast wind around 9 mph.
Tuesday Night
Partly cloudy, with a low around 41. East wind around 6 mph.
Wednesday
Partly sunny, with a high near 73. South wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 53. South wind around 9 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 76. South wind 9 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 55. South wind around 8 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78. South wind 8 to 11 mph, with gusts as high as 21 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.95°W
37.73°N 88.95°W
8:32 pm CDT Apr 3, 2026
9pm CDT Apr 3, 2026-6pm CDT Apr 10, 2026
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