Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
81°F
27°C
| Humidity | 74% |
| Wind Speed | SW 7 mph |
| Barometer | 29.93 in |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 12 Sep 9:45 am CDT |
Extended Forecast for
2 Miles ENE Herrin IL
Today

High: 90 °F
Mostly Sunny
Tonight

Low: 66 °F
Mostly Clear
Sunday

High: 91 °F
Decreasing
CloudsSunday Night

Low: 64 °F
Slight Chance
T-stormsMonday

High: 89 °F
Mostly Sunny
Monday Night

Low: 68 °F
Mostly Clear
Tuesday

High: 96 °F
Sunny
Tuesday Night

Low: 72 °F
Mostly Clear
Wednesday

High: 95 °F
Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 90. West wind around 6 mph.
Tonight
Mostly clear, with a low around 66. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 91. Calm wind becoming west 5 to 7 mph in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. Calm wind becoming northeast around 6 mph after midnight.
Monday
Mostly sunny, with a high near 89. East northeast wind around 8 mph.
Monday Night
Mostly clear, with a low around 68. East southeast wind around 6 mph.
Tuesday
Sunny, with a high near 96. South southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 72. Calm wind becoming south around 5 mph after midnight.
Wednesday
Sunny, with a high near 95. Southwest wind 5 to 8 mph.
Wednesday Night
Mostly clear, with a low around 71. Calm wind becoming south southwest around 5 mph after midnight.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Light and variable wind becoming west 5 to 8 mph in the morning.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Light and variable wind.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. North northeast wind 3 to 8 mph.
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ABOUT THIS FORECAST
Point Forecast:
2 Miles ENE Herrin IL
37.8°N 89°W
37.8°N 89°W
9:26 am CDT Sep 12, 2026
10am CDT Sep 12, 2026-6pm CDT Sep 18, 2026


