Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
73°F
23°C
| Humidity | 78% |
| Wind Speed | S 14 G 25 mph |
| Barometer | 30.09 in |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 3 Apr 11:45 am CDT |
Extended Forecast for
Herrin IL
This Afternoon
High: 83 °F
Chance
T-stormsTonight
Low: 60 °F
Chance
T-stormsSaturday
High: 70 °F⇓
Showers
Saturday Night
Low: 41 °F
Decreasing
CloudsSunday
High: 61 °F
Sunny
Sunday Night
Low: 39 °F
Clear
Monday
High: 65 °F
Sunny
Monday Night
Low: 38 °F
Partly Cloudy
Tuesday
High: 57 °F
Mostly Sunny
Detailed Forecast
This Afternoon
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Partly sunny, with a high near 83. South southwest wind 13 to 16 mph, with gusts as high as 24 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 60. South wind 10 to 14 mph, with gusts as high as 23 mph.
Saturday
Showers and possibly a thunderstorm before 3pm, then a chance of showers. Temperature falling to around 60 by 5pm. South southwest wind 11 to 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 41. Northwest wind 6 to 10 mph.
Sunday
Sunny, with a high near 61. Northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 39. North northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 65. Light west wind becoming northwest 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 38. North wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 57. North northeast wind 7 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 39. East southeast wind around 6 mph.
Wednesday
Mostly sunny, with a high near 70. South wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 53. South wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 75. South wind 10 to 15 mph, with gusts as high as 23 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Herrin IL
37.8°N 89.03°W
37.8°N 89.03°W
11:36 am CDT Apr 3, 2026
12pm CDT Apr 3, 2026-6pm CDT Apr 9, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
