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.

Fair

39°F

4°C

Humidity 93%
Wind Speed Calm
Barometer 30.26 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 13 Nov 7:47 am CST
Extended Forecast for

4 Miles ESE Marion IL

  • Today

    Today: Mostly sunny, with a high near 66. Calm wind becoming south around 6 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. Calm wind becoming south around 6 mph after midnight.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 74. South southwest wind 6 to 11 mph.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. South southwest wind 6 to 9 mph.

    Low: 58 °F

    Partly Cloudy

  • 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 48. Southwest wind 7 to 11 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 62. North northwest wind 3 to 8 mph.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Light and variable wind.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers after noon. Mostly sunny, with a high near 61. Light east wind becoming east southeast 5 to 9 mph in the morning.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 66. Calm wind becoming south around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 47. Calm wind becoming south around 6 mph after midnight.
Friday
Mostly sunny, with a high near 74. South southwest wind 6 to 11 mph.
Friday Night
Partly cloudy, with a low around 58. South southwest wind 6 to 9 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 48. Southwest wind 7 to 11 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 62. North northwest wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 39. Light and variable wind.
Monday
A slight chance of showers after noon. Mostly sunny, with a high near 61. Light east wind becoming east southeast 5 to 9 mph in the morning.
Monday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 48. East southeast wind 7 to 9 mph becoming south after midnight.
Tuesday
A chance of showers. Mostly sunny, with a high near 62. West southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 44. Southwest wind 5 to 7 mph becoming light and variable.
Wednesday
A chance of showers. Mostly cloudy, with a high near 59. North northeast wind 6 to 8 mph becoming south in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Marion IL
 37.71°N 88.86°W
Last Update:
7:46 am CST Nov 13, 2025
Forecast Valid:
8am CST Nov 13, 2025-6pm CST Nov 19, 2025
 
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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