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 Index85°F (29°C)
Last update 12 Sep 9:45 am CDT
Extended Forecast for

2 Miles ENE Herrin IL

  • Today

    Today: Mostly sunny, with a high near 90. West wind around 6 mph.

    High: 90 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 91. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 91 °F

    Decreasing
    Clouds

  • Sunday Night

    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.

    Low: 64 °F

    Slight Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 89. East northeast wind around 8 mph.

    High: 89 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. East southeast wind around 6 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96. South southwest wind 5 to 10 mph.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. Calm wind becoming south around 5 mph after midnight.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Southwest wind 5 to 8 mph.

    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
9:26 am CDT Sep 12, 2026
10am CDT Sep 12, 2026-6pm CDT Sep 18, 2026
 
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Additional Resources

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