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

65°F

18°C

Humidity 51%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 11 May 7:55 pm CDT
Extended Forecast for

Marion IL

  • Tonight

    Tonight: Clear, with a low around 53. West wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 81. Southwest wind 5 to 9 mph.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Increasing clouds, with a low around 60. South southeast wind around 7 mph.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 71. South wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    High: 71 °F

    Showers
    Likely then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 61. South southeast wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.

    Low: 61 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 74. South wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%.

    High: 74 °F

    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 56. North wind 13 to 15 mph, with gusts as high as 22 mph.

    Low: 56 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. North northwest wind around 11 mph.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. North wind 6 to 8 mph becoming southeast after midnight.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 53. West wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 81. Southwest wind 5 to 9 mph.
Sunday Night
A 20 percent chance of showers after 1am. Increasing clouds, with a low around 60. South southeast wind around 7 mph.
Monday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 71. South wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm. Low around 61. South southeast wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.
Tuesday
Showers and possibly a thunderstorm. High near 74. South wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 56. North wind 13 to 15 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 77. North northwest wind around 11 mph.
Wednesday Night
Mostly clear, with a low around 55. North wind 6 to 8 mph becoming southeast after midnight.
Thursday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. South wind 6 to 11 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. South southeast wind around 9 mph.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81. East southeast wind 8 to 11 mph becoming west in the afternoon.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 59. West southwest wind around 9 mph.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 83. West wind 8 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Marion IL
 37.73°N 88.92°W
Last Update:
6:17 pm CDT May 11, 2024
Forecast Valid:
8pm CDT May 11, 2024-6pm CDT May 18, 2024
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation