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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

4°F

-16°C

Humidity 66%
Wind Speed NW 5 mph
Barometer 30.38 in
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 26 Jan 3:55 am CST
Extended Forecast for

2 Miles ENE Herrin IL

Extreme Cold Warning January 26, 04:16am until January 27, 10:00am
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning January 26, 04:16am until January 27, 10:00am

    NOW until 10:00am Tue

    Extreme Cold Warning

  • Today

    High: 14 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a temperature rising to around 11 by 4am. Wind chill values as low as -9. Light south southwest wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 23 mph.

    Low: 5 °F⇑

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 32. Wind chill values as low as -4. Southwest wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 32 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -2. Northwest wind around 5 mph becoming calm in the evening.

    Low: -2 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 27 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 5. Light and variable wind.

    Low: 5 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 22. Calm wind becoming north around 6 mph in the morning.

    High: 22 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 4. Calm wind becoming north around 5 mph after midnight.

    Low: 4 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 14. Wind chill values as low as -20. West northwest wind 5 to 9 mph.
Tonight
Mostly clear, with a temperature rising to around 11 by 4am. Wind chill values as low as -9. Light south southwest wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 23 mph.
Tuesday
Sunny, with a high near 32. Wind chill values as low as -4. Southwest wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around -2. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 27. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 5. Light and variable wind.
Thursday
Mostly cloudy, with a high near 22. Calm wind becoming north around 6 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 4. Calm wind becoming north around 5 mph after midnight.
Friday
Mostly sunny, with a high near 18. North wind 5 to 8 mph.
Friday Night
Mostly clear, with a low around -2. North wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 22. North northwest wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 4. Light and variable wind.
Sunday
Partly sunny, with a high near 28. South southwest wind 3 to 7 mph.
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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 Jan 26, 2026
Forecast Valid:
4am CST Jan 26, 2026-6pm CST Feb 1, 2026
 
Forecast Discussion
 
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Additional Resources

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