Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Mostly Cloudy
81°F
27°C
| Humidity | 74% |
| Wind Speed | W 5 mph |
| Barometer | 29.91 in |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 19 Aug 5:45 pm CDT |
Extended Forecast for
3 Miles NNE Vienna IL
Tonight
Low: 68 °F
Heavy Rain
Thursday
High: 87 °F
Partly Sunny
then Chance
T-stormsThursday Night
Low: 67 °F
Increasing
CloudsFriday
High: 88 °F
Decreasing
CloudsFriday Night
Low: 67 °F
Mostly Clear
Saturday
High: 89 °F
Sunny
Saturday Night
Low: 66 °F
Mostly Clear
Sunday
High: 87 °F
Sunny
Sunday Night
Low: 64 °F
Slight Chance
Showers
Detailed Forecast
Tonight
Showers and thunderstorms likely, mainly before 1am. Some of the storms could produce heavy rainfall. Increasing clouds, with a low around 68. Light and variable wind. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 67. Calm wind.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 88. Light north wind.
Friday Night
Mostly clear, with a low around 67. Calm wind.
Saturday
Sunny, with a high near 89. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. Calm wind.
Sunday
Sunny, with a high near 87. Calm wind becoming north around 6 mph in the afternoon.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 64. Calm wind.
Monday
A slight chance of showers before 1pm. Mostly sunny, with a high near 86. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Calm wind.
Tuesday
Mostly sunny, with a high near 89. Calm wind becoming south around 6 mph in the morning.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 68. Calm wind.
Wednesday
Mostly sunny, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NNE Vienna IL
37.44°N 88.88°W
37.44°N 88.88°W
5:41 pm CDT Aug 19, 2026
6pm CDT Aug 19, 2026-6pm CDT Aug 26, 2026
Additional Resources
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Hourly Weather Forecast
