Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Partly Cloudy and Breezy
86°F
30°C
| Humidity | 49% |
| Wind Speed | SW 24 G 36 mph |
| Barometer | 29.91 in |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 88°F (31°C) |
| Last update | 14 Apr 3:45 pm CDT |
Extended Forecast for
Marion IL
This Afternoon
High: 88 °F
Sunny
Tonight
Low: 69 °F
Partly Cloudy
then Slight
Chance
T-stormsWednesday
High: 85 °F
Slight Chance
Showers then
Slight Chance
T-stormsWednesday Night
Low: 65 °F
Slight Chance
T-storms then
Showers
LikelyThursday
High: 82 °F
Showers
Thursday Night
Low: 62 °F
Chance
T-storms then
Slight Chance
ShowersFriday
High: 87 °F
Mostly Sunny
then Chance
T-stormsFriday Night
Low: 65 °F
Slight Chance
T-storms then
Chance
ShowersSaturday
High: 77 °F
Chance
T-storms then
Showers
Likely
Detailed Forecast
This Afternoon
Sunny, with a high near 88. South southwest wind around 17 mph, with gusts as high as 26 mph.
Tonight
A slight chance of showers and thunderstorms between 3am and 4am. Partly cloudy, with a low around 69. South southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 5pm. Partly sunny, with a high near 85. South southwest wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South southwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm before 10am, then showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. High near 82. Southwest wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 62. Southwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65. South wind 8 to 10 mph, with gusts as high as 21 mph.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77. South southwest wind 11 to 16 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 43. West northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 64. West northwest wind 7 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 40. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 69. Light and variable wind becoming south southeast 5 to 7 mph in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.92°W
37.73°N 88.92°W
1:42 pm CDT Apr 14, 2026
4pm CDT Apr 14, 2026-6pm CDT Apr 20, 2026
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