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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

36°F

2°C

Humidity 58%
Wind Speed S 6 mph
Barometer 30.17 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 2 Feb 10:35 pm CST
Extended Forecast for

Marion IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. East wind 3 to 5 mph.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of drizzle, snow, and freezing rain before 10am, then a chance of drizzle between 10am and 5pm. Cloudy, with a high near 37. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 40%.

    High: 37 °F

    Chance Wintry
    Mix then
    Chance
    Drizzle

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22. North wind 5 to 7 mph.

    Low: 22 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. North wind 5 to 8 mph.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 14. Light and variable wind.

    Low: 14 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 37. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 37 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. South southwest wind around 7 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 47. West southwest wind 7 to 10 mph becoming northwest in the afternoon.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24. Northwest wind around 6 mph becoming calm in the evening.

    Low: 24 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. East wind 3 to 5 mph.
Tuesday
A chance of drizzle, snow, and freezing rain before 10am, then a chance of drizzle between 10am and 5pm. Cloudy, with a high near 37. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 40%.
Tuesday Night
Mostly cloudy, with a low around 22. North wind 5 to 7 mph.
Wednesday
Partly sunny, with a high near 32. North wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 14. Light and variable wind.
Thursday
Mostly sunny, with a high near 37. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 28. South southwest wind around 7 mph.
Friday
Mostly sunny, with a high near 47. West southwest wind 7 to 10 mph becoming northwest in the afternoon.
Friday Night
Mostly clear, with a low around 24. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 38. Calm wind becoming northeast around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 24. Light and variable wind becoming southeast around 5 mph after midnight.
Sunday
Mostly sunny, with a high near 43. South wind 5 to 7 mph becoming north in the afternoon.
Sunday Night
Partly cloudy, with a low around 27. Light and variable wind.
Monday
Mostly sunny, with a high near 47. South southeast wind 3 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marion IL
 37.73°N 88.92°W
Last Update:
8:07 pm CST Feb 2, 2026
Forecast Valid:
10pm CST Feb 2, 2026-6pm CST Feb 9, 2026
 
Forecast Discussion
 
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Additional Resources

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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