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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

7°F

-14°C

Humidity 56%
Wind Speed NE 7 mph
Barometer 30.58 in
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 24 Jan 7:45 am CST
Extended Forecast for

Marion IL

Cold Weather Advisory January 24, 07:47am until January 24, 01:00pm
Winter Storm Warning January 24, 07:47am until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning
  •  
    Cold Weather Advisory January 24, 07:47am until January 24, 01:00pm
    Winter Storm Warning January 24, 07:47am until January 25, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 14 °F

    Chance Snow
    then Snow

  • Tonight

    Tonight: Snow. Low around 13. Northeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 13 °F

    Snow

  • Sunday

    Sunday: Snow, mainly before 4pm. The snow could be heavy at times. High near 18. Wind chill values as low as -1. North wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 18 °F

    Heavy Snow
    then Snow
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 0. Wind chill values as low as -13. North northwest wind 9 to 14 mph, with gusts as high as 26 mph.

    Low: 0 °F

    Chance Snow
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 16. West northwest wind 5 to 10 mph becoming light west in the afternoon.

    High: 16 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around -1. Calm wind becoming south southwest 5 to 9 mph in the evening. Winds could gust as high as 18 mph.

    Low: -1 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 29. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 29 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 7. Southwest wind around 5 mph becoming calm in the evening.

    Low: 7 °F

    Partly Cloudy

Detailed Forecast

Today
Snow, mainly after noon. High near 14. Wind chill values as low as -8. Northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Snow. Low around 13. Northeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Sunday
Snow, mainly before 4pm. The snow could be heavy at times. High near 18. Wind chill values as low as -1. North wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Sunday Night
A 30 percent chance of snow before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 0. Wind chill values as low as -13. North northwest wind 9 to 14 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 16. West northwest wind 5 to 10 mph becoming light west in the afternoon.
Monday Night
Mostly clear, with a low around -1. Calm wind becoming south southwest 5 to 9 mph in the evening. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 29. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 7. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 26. Calm wind becoming west northwest 5 to 7 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 5. Light and variable wind becoming north northwest around 6 mph after midnight.
Thursday
Mostly sunny, with a high near 21. North northwest wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 1. North northwest wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 22. North wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marion IL
 37.73°N 88.95°W
Last Update:
4:57 am CST Jan 24, 2026
Forecast Valid:
7am CST Jan 24, 2026-6pm CST Jan 30, 2026
 
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