Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
55°F
13°C
| Humidity | 47% |
| Wind Speed | SW 18 G 25 mph |
| Barometer | 29.95 in |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 50°F (10°C) |
| Last update | 13 Mar 11:45 am CDT |
Extended Forecast for
2 Miles ENE Herrin IL
This Afternoon

High: 65 °F
Decreasing
CloudsTonight

Low: 38 °F
Mostly Clear
Saturday

High: 67 °F
Sunny
Saturday Night

Low: 55 °F
Increasing
CloudsSunday
High: 72 °F
Breezy.
Mostly Cloudy
then Showers
LikelySunday Night
Low: 26 °F
Breezy.
Showers then
Rain/SnowMonday

High: 33 °F
Slight Chance
Snow Showers
and BreezyMonday Night
Low: 15 °F
Partly Cloudy
and Blustery
then Mostly
ClearTuesday

High: 39 °F
Sunny
Detailed Forecast
This Afternoon
Mostly cloudy, then gradually becoming sunny, with a high near 65. West wind 10 to 15 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 38. Northwest wind around 6 mph becoming light and variable.
Saturday
Sunny, with a high near 67. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Increasing clouds, with a low around 55. South wind 8 to 14 mph, with gusts as high as 24 mph.
Sunday
Showers likely and possibly a thunderstorm, mainly after 4pm. Mostly cloudy, with a high near 72. Breezy, with a south wind 18 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 60%.
Sunday Night
Rain showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Some thunder is also possible. Low around 26. Breezy, with a south southwest wind 22 to 24 mph becoming west in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 100%.
Monday
A 20 percent chance of snow showers before 1pm. Mostly cloudy, with a high near 33. Breezy, with a west northwest wind around 22 mph, with gusts as high as 33 mph.
Monday Night
Mostly clear, with a low around 15. Blustery, with a west northwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 25 mph.
Tuesday
Sunny, with a high near 39. West northwest wind 6 to 8 mph.
Tuesday Night
A slight chance of rain and snow showers after 1am. Mostly cloudy, with a low around 29. South wind 5 to 11 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 59. South southwest wind 13 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 41. South southwest wind 6 to 8 mph.
Thursday
Sunny, with a high near 69. West wind 5 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
10:26 am CDT Mar 13, 2026
12pm CDT Mar 13, 2026-6pm CDT Mar 19, 2026



