Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
25°F
-4°C
| Humidity | 45% |
| Wind Speed | W 8 G 17 mph |
| Barometer | 30.16 in |
| Dewpoint | 6°F (-14°C) |
| Visibility | 10.00 mi |
| Wind Chill | 16°F (-9°C) |
| Last update | 17 Mar 12:55 am CDT |
Extended Forecast for
3 Miles NNW Vienna IL
Overnight
Low: 19 °F
Mostly Cloudy
Tuesday
High: 38 °F
Sunny
Tuesday Night
Low: 31 °F
Mostly Cloudy
then Chance
Rain/SnowWednesday
High: 59 °F
Chance
Showers then
SunnyWednesday Night
Low: 42 °F
Partly Cloudy
Thursday
High: 71 °F
Mostly Sunny
Thursday Night
Low: 49 °F
Mostly Clear
Friday
High: 75 °F
Mostly Sunny
Friday Night
Low: 51 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 19. Northwest wind 6 to 8 mph.
Tuesday
Sunny, with a high near 38. Northwest wind 3 to 6 mph.
Tuesday Night
A chance of snow showers after midnight, mixing with rain after 5am. Mostly cloudy, with a low around 31. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers before 7am. Cloudy through mid morning, then gradual clearing, with a high near 59. South wind 9 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 42. South southwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 71. Calm wind becoming south southwest around 6 mph in the morning.
Thursday Night
Mostly clear, with a low around 49. Calm wind.
Friday
Mostly sunny, with a high near 75. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 51. Light southwest wind.
Saturday
Sunny, with a high near 78. Southwest wind 3 to 7 mph.
Saturday Night
Clear, with a low around 56. South southwest wind 3 to 6 mph.
Sunday
Sunny, with a high near 78. South southwest wind 6 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 46. North northeast wind around 8 mph.
Monday
Partly sunny, with a high near 61. Northeast wind 7 to 9 mph, with gusts as high as 18 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NNW Vienna IL
37.44°N 88.91°W
37.44°N 88.91°W
11:36 pm CDT Mar 16, 2026
1am CDT Mar 17, 2026-6pm CDT Mar 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
