Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Mostly Cloudy
62°F
17°C
| Humidity | 58% |
| Wind Speed | S 5 mph |
| Barometer | 30.07 in |
| Dewpoint | 47°F (8°C) |
| Visibility | 10.00 mi |
| Last update | 28 Mar 4:15 am CDT |
Extended Forecast for
Herrin IL
Today
High: 80 °F
Mostly Sunny
then Partly
Sunny and
BreezyTonight
Low: 62 °F
Mostly Cloudy
then Chance
ShowersSaturday
High: 69 °F
Showers
Saturday Night
Low: 62 °F
Showers
LikelySunday
High: 77 °F
Showers
Sunday Night
Low: 44 °F
Showers
Monday
High: 53 °F
Partly Sunny
Monday Night
Low: 36 °F
Partly Cloudy
Tuesday
High: 61 °F
Mostly Sunny
Detailed Forecast
Today
Increasing clouds, with a high near 80. Breezy, with a south southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 36 mph.
Tonight
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 62. South wind 10 to 13 mph, with gusts as high as 22 mph.
Saturday
Showers. High near 69. South wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Sunday
Showers, with thunderstorms also possible after 10am. High near 77. South wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 44. Southwest wind 10 to 13 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%.
Monday
Partly sunny, with a high near 53. Northwest wind 10 to 13 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 36. North wind 5 to 9 mph becoming light north northeast after midnight.
Tuesday
Mostly sunny, with a high near 61. Light east northeast wind becoming east 5 to 9 mph in the morning.
Tuesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 50. East southeast wind 8 to 14 mph, with gusts as high as 24 mph.
Wednesday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 76. Breezy, with a south wind 16 to 20 mph, with gusts as high as 32 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 51. Southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Thursday
A chance of showers. Partly sunny, with a high near 68. West wind 7 to 10 mph becoming south in the morning.
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ABOUT THIS FORECAST
Point Forecast:
Herrin IL
37.8°N 89.03°W
37.8°N 89.03°W
2:33 am CDT Mar 28, 2025
4am CDT Mar 28, 2025-6pm CDT Apr 3, 2025
Additional Resources
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Hourly Weather Forecast
