National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

52°F

11°C

Humidity 82%
Wind Speed Vrbl 5 mph
Barometer 30.31 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 16 Oct 7:35 pm CDT
Extended Forecast for

6 Miles SSW Marion IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. Light northwest wind becoming north 9 to 14 mph in the evening. Winds could gust as high as 21 mph.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 60. North northeast wind 8 to 11 mph.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 5am. Otherwise, clear, with a low around 35. Calm wind.

    Low: 35 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 66. Calm wind becoming east southeast around 5 mph in the morning.

    High: 66 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39. Calm wind.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 70. Light east wind.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 41. Light northwest wind becoming north 9 to 14 mph in the evening. Winds could gust as high as 21 mph.
Saturday
Sunny, with a high near 60. North northeast wind 8 to 11 mph.
Saturday Night
Areas of frost after 5am. Otherwise, clear, with a low around 35. Calm wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 66. Calm wind becoming east southeast around 5 mph in the morning.
Sunday Night
Clear, with a low around 39. Calm wind.
Monday
Sunny, with a high near 70. Light east wind.
Monday Night
Mostly clear, with a low around 41. Calm wind.
Tuesday
Sunny, with a high near 73. Calm wind becoming east northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 42. Calm wind.
Wednesday
Sunny, with a high near 75. Calm wind becoming east northeast around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 44. Calm wind.
Thursday
Sunny, with a high near 78. Light east northeast wind.
Thursday Night
Mostly clear, with a low around 48. Calm wind.
Friday
Sunny, with a high near 79. Calm wind becoming east northeast around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Marion IL
 37.65°N 88.98°W
Last Update:
7:46 pm CDT Oct 16, 2026
Forecast Valid:
7pm CDT Oct 16, 2026-6pm CDT Oct 23, 2026
 
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Additional Resources

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