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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

2 Miles ENE Herrin IL

Winter Weather Advisory December 2, 03:21am until December 2, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 2, 03:21am until December 2, 06:00am

    NOW until 6:00am Tue

    Winter Weather Advisory

  • Overnight

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 34. North northwest wind 5 to 8 mph becoming calm in the afternoon.

    High: 34 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. Light and variable wind.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 43. South southwest wind 5 to 10 mph becoming light in the afternoon.

    High: 43 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21. Light and variable wind becoming north northwest 6 to 11 mph in the evening. Winds could gust as high as 18 mph.

    Low: 21 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 30. North wind 6 to 11 mph becoming light in the afternoon. Winds could gust as high as 18 mph.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17. Calm wind.

    Low: 17 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 39. Calm wind becoming south southwest around 6 mph in the morning.

    High: 39 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 23. North northwest wind 5 to 7 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 34. North northwest wind 5 to 8 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 22. Light and variable wind.
Wednesday
Mostly sunny, with a high near 43. South southwest wind 5 to 10 mph becoming light in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 21. Light and variable wind becoming north northwest 6 to 11 mph in the evening. Winds could gust as high as 18 mph.
Thursday
Mostly sunny, with a high near 30. North wind 6 to 11 mph becoming light in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 17. Calm wind.
Friday
Mostly sunny, with a high near 39. Calm wind becoming south southwest around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 26. Light southwest wind.
Saturday
Mostly sunny, with a high near 43. Light and variable wind becoming west 5 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 27. Calm wind becoming east northeast around 6 mph after midnight.
Sunday
Partly sunny, with a high near 39. North wind 6 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 22. North wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 39. North wind 5 to 7 mph becoming south southwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Herrin IL
 37.8°N 89°W
Last Update:
3:16 am CST Dec 2, 2025
Forecast Valid:
3am CST Dec 2, 2025-6pm CST Dec 8, 2025
 
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