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

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

70°F

21°C

Humidity 78%
Wind Speed S 17 G 28 mph
Barometer 29.86 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 9 Mar 4:45 pm CDT
Extended Forecast for

5 Miles SE Marion IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 73. South southwest wind around 15 mph, with gusts as high as 26 mph.

    High: 73 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 63. South southwest wind 8 to 13 mph, with gusts as high as 22 mph.

    Low: 63 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 10 percent chance of showers after 5pm. Mostly cloudy, with a high near 78. South southwest wind 7 to 16 mph, with gusts as high as 25 mph.

    High: 78 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 66. South southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

    Low: 66 °F

    Chance
    T-storms then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 72. South southwest wind 16 to 18 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%.

    High: 72 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 35. North northwest wind 10 to 18 mph, with gusts as high as 28 mph.

    Low: 35 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 55. North northwest wind around 7 mph.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. South wind 5 to 14 mph, with gusts as high as 24 mph.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 65. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 73. South southwest wind around 15 mph, with gusts as high as 26 mph.
Tonight
Mostly cloudy, with a low around 63. South southwest wind 8 to 13 mph, with gusts as high as 22 mph.
Tuesday
A 10 percent chance of showers after 5pm. Mostly cloudy, with a high near 78. South southwest wind 7 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 66. South southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 72. South southwest wind 16 to 18 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%.
Wednesday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 35. North northwest wind 10 to 18 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 55. North northwest wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 42. South wind 5 to 14 mph, with gusts as high as 24 mph.
Friday
Mostly cloudy, with a high near 65. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 42. West southwest wind around 5 mph becoming east northeast after midnight.
Saturday
Sunny, with a high near 71. East southeast wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 54. South wind 10 to 13 mph, with gusts as high as 24 mph.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 69. South southwest wind 14 to 18 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Marion IL
 37.69°N 88.87°W
Last Update:
3:01 pm CDT Mar 9, 2026
Forecast Valid:
4pm CDT Mar 9, 2026-6pm CDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation