Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
73°F
23°C
| Humidity | 70% |
| Wind Speed | Calm |
| Barometer | 30.02 in |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 26 Aug 2:35 am CDT |
Extended Forecast for
Herrin ILSimilar City Names
Overnight
Low: 68 °F
Chance
T-stormsWednesday
High: 91 °F
Chance
T-stormsWednesday Night
Low: 68 °F
Chance
ShowersThursday
High: 89 °F
Mostly Sunny
Thursday Night
Low: 65 °F
Mostly Clear
Friday
High: 89 °F
Sunny
Friday Night
Low: 62 °F
Clear
Saturday
High: 91 °F
Sunny
Saturday Night
Low: 66 °F
Mostly Clear
Detailed Forecast
Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 68. Calm wind.
Wednesday
A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 91. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%.
Thursday
Mostly sunny, with a high near 89. Calm wind becoming north 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 65. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 89. Calm wind becoming north northeast 5 to 9 mph in the morning.
Friday Night
Clear, with a low around 62. North northeast wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. Calm wind becoming east southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. Calm wind.
Sunday
Sunny, with a high near 94. Light south southeast wind becoming south southwest 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 71. South wind 3 to 5 mph.
Monday
Sunny, with a high near 96. South southwest wind 5 to 10 mph.
Monday Night
A slight chance of showers. Mostly clear, with a low around 73. South wind 3 to 6 mph.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 95. Southwest wind 3 to 8 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Herrin ILSimilar City Names
37.8°N 89.03°W
37.8°N 89.03°W
1:20 am CDT Aug 26, 2026
2am CDT Aug 26, 2026-6pm CDT Sep 1, 2026
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