Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
73°F
23°C
| Humidity | 62% |
| Wind Speed | S 7 mph |
| Barometer | 30.04 in |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Last update | 3 Apr 10:55 pm CDT |
Extended Forecast for
Herrin IL
Tonight

Low: 60 °F
Showers
LikelySaturday

High: 70 °F⇓
Showers
Saturday Night

Low: 40 °F
Decreasing
CloudsSunday

High: 61 °F
Sunny
Sunday Night

Low: 39 °F
Clear
Monday

High: 67 °F
Sunny
Monday Night

Low: 40 °F
Partly Cloudy
Tuesday

High: 59 °F
Mostly Sunny
Tuesday Night

Low: 41 °F
Partly Cloudy
Detailed Forecast
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 60. South wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Saturday
Showers and possibly a thunderstorm before 3pm, then a chance of showers. Temperature falling to around 60 by 5pm. South southwest wind around 14 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 40. West northwest wind 6 to 10 mph.
Sunday
Sunny, with a high near 61. Northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Clear, with a low around 39. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 67. Calm wind becoming northwest 5 to 9 mph in the morning.
Monday Night
Partly cloudy, with a low around 40. North wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 59. East northeast wind 8 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 41. East wind around 7 mph.
Wednesday
Partly sunny, with a high near 73. South wind 7 to 13 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 53. South wind around 10 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 76. South wind 10 to 15 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 55. South wind around 8 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78. South wind 9 to 13 mph, with gusts as high as 21 mph.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Herrin IL
37.83°N 89.03°W
37.83°N 89.03°W
8:32 pm CDT Apr 3, 2026
11pm CDT Apr 3, 2026-6pm CDT Apr 10, 2026



