Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
30°F
-1°C
| Humidity | 86% |
| Wind Speed | E 3 mph |
| Barometer | 30.11 in |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Last update | 1 Dec 6:45 pm CST |
Extended Forecast for
Marion IL
Winter Weather Advisory until December 2, 06:00am
NOW until 6:00am Tue
Winter Weather Advisory
Tonight
Low: 23 °F
Wintry Mix
then SnowTuesday
High: 32 °F
Decreasing
CloudsTuesday Night
Low: 21 °F
Mostly Clear
Wednesday
High: 42 °F
Mostly Sunny
Wednesday Night
Low: 21 °F
Mostly Cloudy
Thursday
High: 29 °F
Mostly Sunny
Thursday Night
Low: 18 °F
Partly Cloudy
then Slight
Chance Snow
ShowersFriday
High: 39 °F
Slight Chance
Rain/Snow
Detailed Forecast
Tonight
Snow and freezing rain, becoming all snow after 1am, then gradually ending. Low around 23. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 80%. Little or no ice accumulation expected. Total nighttime snow accumulation of 1 to 2 inches possible.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 32. Northwest wind 5 to 8 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 21. Calm wind.
Wednesday
Mostly sunny, with a high near 42. Light south wind becoming south southwest 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 21. Light and variable wind becoming north northwest 5 to 10 mph after midnight. Winds could gust as high as 18 mph.
Thursday
Mostly sunny, with a high near 29. North wind 5 to 10 mph becoming light north northeast in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 18. Calm wind.
Friday
A slight chance of rain and snow showers. Mostly sunny, with a high near 39. Calm wind becoming south southwest around 6 mph.
Friday Night
Partly cloudy, with a low around 26. Calm wind.
Saturday
Mostly sunny, with a high near 43. Calm wind becoming southwest 5 to 7 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 29. Calm wind becoming west around 6 mph after midnight.
Sunday
Mostly cloudy, with a high near 41. West northwest wind 6 to 8 mph becoming north in the afternoon.
Sunday Night
Mostly cloudy, with a low around 22. North wind 3 to 5 mph.
Monday
Partly sunny, with a high near 39. Light and variable wind becoming north around 6 mph in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.92°W
37.73°N 88.92°W
4:34 pm CST Dec 1, 2025
7pm CST Dec 1, 2025-6pm CST Dec 8, 2025
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