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.

Fair

30°F

-1°C

Humidity 71%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 2 Feb 11:55 pm CST
Extended Forecast for

4 Miles SSW Marion IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 28. East wind 3 to 5 mph.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of drizzle or freezing rain before 10am, then a chance of drizzle between 10am and 5pm. Mostly cloudy, with a high near 37. Light and variable wind becoming north 5 to 10 mph in the morning. Chance of precipitation is 30%.

    High: 37 °F

    Chance
    Drizzle/Freezing
    Rain then
    Chance
    Drizzle

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22. North wind 7 to 9 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 15. Light and variable wind.

    Low: 15 °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 29. South southwest wind around 7 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 47. West southwest wind 6 to 9 mph becoming northwest in the afternoon.

    High: 47 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. North wind 3 to 6 mph.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 28. East wind 3 to 5 mph.
Tuesday
A chance of drizzle or freezing rain before 10am, then a chance of drizzle between 10am and 5pm. Mostly cloudy, with a high near 37. Light and variable wind becoming north 5 to 10 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 22. North wind 7 to 9 mph.
Wednesday
Partly sunny, with a high near 32. North wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 15. 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 29. South southwest wind around 7 mph.
Friday
Sunny, with a high near 47. West southwest wind 6 to 9 mph becoming northwest in the afternoon.
Friday Night
Mostly clear, with a low around 25. North wind 3 to 6 mph.
Saturday
Sunny, with a high near 39. Light and variable wind becoming northeast around 5 mph.
Saturday Night
Partly cloudy, with a low around 25. Light and variable wind becoming south around 6 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 28. Light and variable wind.
Monday
Mostly sunny, with a high near 47. South wind 3 to 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Marion IL
 37.67°N 88.98°W
Last Update:
10:47 pm CST Feb 2, 2026
Forecast Valid:
12am CST Feb 3, 2026-6pm CST Feb 9, 2026
 
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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