Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
25°F
-4°C
| Humidity | 56% |
| Wind Speed | NW 5 mph |
| Barometer | 30.09 in |
| Dewpoint | 11°F (-12°C) |
| Visibility | 10.00 mi |
| Wind Chill | 19°F (-7°C) |
| Last update | 15 Jan 12:15 am CST |
Extended Forecast for
2 Miles ENE Herrin IL
Overnight
Low: 19 °F
Clear
Thursday
High: 35 °F
Sunny
Thursday Night
Low: 28 °F⇑
Slight Chance
SnowFriday
High: 47 °F
Mostly Cloudy
Friday Night
Low: 23 °F
Mostly Cloudy
Saturday
High: 30 °F
Partly Sunny
Saturday Night
Low: 10 °F
Partly Cloudy
Sunday
High: 26 °F
Sunny
Sunday Night
Low: 16 °F
Partly Cloudy
Detailed Forecast
Overnight
Clear, with a low around 19. Northwest wind around 9 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 35. Northwest wind 5 to 9 mph becoming south southwest in the afternoon.
Thursday Night
A slight chance of snow between 9pm and 3am. Mostly cloudy, with a temperature falling to near 28 by 8pm, then rising to around 35 during the remainder of the night. Light south wind becoming south southwest 8 to 13 mph in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Friday
Mostly cloudy, with a high near 47. West wind 10 to 14 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 23. West wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday
Partly sunny, with a high near 30. West northwest wind 10 to 15 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 10. Northwest wind 6 to 9 mph.
Sunday
Sunny, with a high near 26. West northwest wind 6 to 11 mph becoming southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 16. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
M.L.King Day
Mostly sunny, with a high near 30. Northwest wind 9 to 14 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 11. Northwest wind 3 to 8 mph.
Tuesday
Sunny, with a high near 33. Light and variable wind becoming west southwest 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 20. South southwest wind 7 to 9 mph.
Wednesday
Mostly sunny, with a high near 41. Southwest wind 8 to 11 mph, with gusts as high as 18 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles ENE Herrin IL
37.8°N 89°W
37.8°N 89°W
10:26 pm CST Jan 14, 2026
12am CST Jan 15, 2026-6pm CST Jan 21, 2026
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