Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Partly Cloudy
84°F
29°C
| Humidity | 51% |
| Wind Speed | Calm |
| Barometer | 30.01 in |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 4 Aug 5:45 pm CDT |
Extended Forecast for
3 Miles SE Marion IL
Tonight
Low: 64 °F
Mostly Clear
Wednesday
High: 91 °F
Sunny
Wednesday Night
Low: 70 °F
Increasing
CloudsThursday
High: 89 °F
Chance
ShowersThursday Night
Low: 71 °F
Mostly Cloudy
then Chance
T-stormsFriday
High: 88 °F
Showers
LikelyFriday Night
Low: 70 °F
Chance
T-stormsSaturday
High: 90 °F
Slight Chance
T-stormsSaturday Night
Low: 71 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 64. Light southeast wind.
Wednesday
Sunny, with a high near 91. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 70. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms, mainly between 7am and 1pm. Partly sunny, with a high near 89. Calm wind becoming southwest around 6 mph in the morning.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. Calm wind.
Friday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light south southwest wind.
Saturday
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 6 mph in the morning.
Saturday Night
Mostly clear, with a low around 71. Calm wind.
Sunday
Sunny, with a high near 92. Light south wind becoming south southwest 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 73. South wind 5 to 8 mph.
Monday
Sunny, with a high near 95. South southwest wind 7 to 14 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 75. South southwest wind 9 to 11 mph.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. South southwest wind 8 to 10 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SE Marion IL
37.71°N 88.89°W
37.71°N 88.89°W
4:16 pm CDT Aug 4, 2026
6pm CDT Aug 4, 2026-6pm CDT Aug 11, 2026
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