Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

66°F

19°C

Humidity 52%
Wind Speed S 12 mph
Barometer 30.18 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 4 Nov 1:47 pm CST
Extended Forecast for

Marion IL

  • This Afternoon

    This Afternoon: Sunny, with a steady temperature around 64. South wind around 13 mph, with gusts as high as 24 mph.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 52. South southwest wind around 11 mph, with gusts as high as 18 mph.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 72. South southwest wind 8 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 40. North northwest wind around 6 mph becoming light and variable  in the evening.

    Low: 40 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 65. Southeast wind 5 to 10 mph.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after midnight.  Partly cloudy, with a low around 52. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 52 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: Showers likely before 9am, then showers likely and possibly a thunderstorm between 9am and noon, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 71. South southwest wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. West wind around 6 mph becoming calm  in the evening.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 68. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 64. South wind around 13 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 52. South southwest wind around 11 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 72. South southwest wind 8 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Clear, with a low around 40. North northwest wind around 6 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 65. Southeast wind 5 to 10 mph.
Thursday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 52. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Friday
Showers likely before 9am, then showers likely and possibly a thunderstorm between 9am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. South southwest wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 70%.
Friday Night
Mostly clear, with a low around 44. West wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 68. Calm wind becoming south southwest 5 to 9 mph in the morning.
Saturday Night
A chance of showers, mainly before midnight. Partly cloudy, with a low around 40. South southwest wind 6 to 10 mph becoming west northwest after midnight.
Sunday
Partly sunny, with a high near 49. Northwest wind 10 to 15 mph, with gusts as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 27. Northwest wind 7 to 10 mph.
Monday
Sunny, with a high near 44. Northwest wind 6 to 11 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Marion IL
 37.73°N 88.95°W
1:51 pm CST Nov 4, 2025
2pm CST Nov 4, 2025-6pm CST Nov 10, 2025
 
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Additional Resources

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