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
NOW until 10:00am Tue

Extreme Cold Warning
Today

High: 14 °F
Sunny
Tonight

Low: 5 °F⇑
Mostly Clear
Tuesday

High: 32 °F
Sunny
Tuesday Night

Low: -2 °F
Partly Cloudy
Wednesday

High: 27 °F
Mostly Sunny
Wednesday Night

Low: 5 °F
Partly Cloudy
Thursday

High: 22 °F
Mostly Cloudy
Thursday Night

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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ABOUT THIS FORECAST
Point Forecast:
2 Miles ENE Herrin IL
37.8°N 89°W
37.8°N 89°W
3:16 am CST Jan 26, 2026
4am CST Jan 26, 2026-6pm CST Feb 1, 2026



