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

55°F

13°C

Humidity 72%
Wind Speed S 7 mph
Barometer 30.12 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 14 Nov 7:45 am CST
Extended Forecast for

3 Miles SE Marion IL

  • Today

    Today: Sunny, with a high near 75. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 75. Southwest wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47. Southwest wind 6 to 9 mph becoming north after midnight.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 62. North wind 3 to 7 mph.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers after noon. Mostly sunny, with a high near 62. Calm wind becoming east southeast 5 to 8 mph in the morning.

    High: 62 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 47. East wind 6 to 8 mph.

    Low: 47 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers, mainly before noon. Partly sunny, with a high near 63. East wind 7 to 10 mph becoming north in the afternoon.

    High: 63 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 75. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 60. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 75. Southwest wind 10 to 16 mph, with gusts as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 47. Southwest wind 6 to 9 mph becoming north after midnight.
Sunday
Sunny, with a high near 62. North wind 3 to 7 mph.
Sunday Night
Mostly clear, with a low around 38. Calm wind.
Monday
A 30 percent chance of showers after noon. Mostly sunny, with a high near 62. Calm wind becoming east southeast 5 to 8 mph in the morning.
Monday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 47. East wind 6 to 8 mph.
Tuesday
A chance of showers, mainly before noon. Partly sunny, with a high near 63. East wind 7 to 10 mph becoming north in the afternoon.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 41. Northeast wind 3 to 6 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 56. East northeast wind 5 to 7 mph.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 44. East wind 3 to 7 mph.
Thursday
Showers likely. Mostly cloudy, with a high near 62. East wind 7 to 10 mph becoming south in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Marion IL
 37.71°N 88.89°W
Last Update:
8:17 am CST Nov 14, 2025
Forecast Valid:
8am CST Nov 14, 2025-6pm CST Nov 20, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation