Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Mostly Cloudy
82°F
28°C
| Humidity | 55% |
| Wind Speed | S 16 G 28 mph |
| Barometer | 29.89 in |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 84°F (29°C) |
| Last update | 17 Apr 2:45 pm CDT |
Extended Forecast for
2 Miles ENE Herrin IL
This Afternoon

High: 87 °F
Slight Chance
T-stormsTonight
Low: 52 °F
Slight Chance
Showers then
ShowersSaturday
High: 65 °F⇓
Showers then
Chance
ShowersSaturday Night

Low: 40 °F
Decreasing
CloudsSunday

High: 70 °F
Sunny
Sunday Night

Low: 43 °F
Clear
Monday

High: 71 °F
Sunny
Monday Night

Low: 52 °F
Clear
Tuesday

High: 80 °F
Mostly Sunny
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind around 16 mph, with gusts as high as 24 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 52. South wind around 14 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%.
Saturday
Showers and thunderstorms before 4pm, then a slight chance of showers. Temperature falling to around 55 by 9am. South southwest wind 11 to 16 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 40. North northwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 70. Light southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Clear, with a low around 43. West northwest wind around 6 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 71. Light and variable wind becoming south 5 to 7 mph in the morning.
Monday Night
Clear, with a low around 52. Southeast wind around 6 mph.
Tuesday
Mostly sunny, with a high near 80. Southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 58. Southwest wind 6 to 9 mph.
Wednesday
Sunny, with a high near 82. Southwest wind 6 to 10 mph.
Wednesday Night
Mostly clear, with a low around 60. South wind around 6 mph.
Thursday
Sunny, with a high near 85. South wind 6 to 13 mph, with gusts as high as 21 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
1:26 pm CDT Apr 17, 2026
3pm CDT Apr 17, 2026-6pm CDT Apr 23, 2026



