Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
A Few Clouds
52°F
11°C
| Humidity | 28% |
| Wind Speed | S 12 mph |
| Barometer | 30.10 in |
| Dewpoint | 19°F (-7°C) |
| Visibility | 10.00 mi |
| Wind Chill | 48°F (9°C) |
| Last update | 12 Mar 6:45 pm CDT |
Extended Forecast for
4 Miles SW Simpson IL
Tonight
Low: 41 °F
Mostly Clear
Friday
High: 63 °F
Mostly Sunny
Friday Night
Low: 38 °F
Mostly Clear
Saturday
High: 67 °F
Mostly Sunny
Saturday Night
Low: 54 °F
Partly Cloudy
Sunday
High: 72 °F
Mostly Cloudy
then Showers
Likely and
BreezySunday Night
Low: 27 °F
Showers then
Rain/SnowMonday
High: 35 °F
Mostly Cloudy
Monday Night
Low: 16 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 41. South wind 5 to 14 mph, with gusts as high as 33 mph.
Friday
Mostly sunny, with a high near 63. Southwest wind 9 to 14 mph, with gusts as high as 32 mph.
Friday Night
Mostly clear, with a low around 38. Light and variable wind.
Saturday
Mostly sunny, with a high near 67. Light and variable wind becoming southeast 5 to 8 mph in the morning.
Saturday Night
Partly cloudy, with a low around 54. South southeast wind 6 to 9 mph, with gusts as high as 20 mph.
Sunday
Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. Breezy, with a south wind 11 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 60%.
Sunday Night
Rain showers before 1am, then a chance of rain and snow showers. Some thunder is also possible. Low around 27. South southwest wind around 17 mph becoming west northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%.
Monday
Mostly cloudy, with a high near 35. West northwest wind around 17 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 16. West northwest wind 5 to 10 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 38. West wind 3 to 7 mph.
Tuesday Night
A slight chance of snow showers. Mostly cloudy, with a low around 27. South southeast wind around 6 mph.
Wednesday
Partly sunny, with a high near 55. South wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 40. South southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 66. South southwest wind 5 to 8 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SW Simpson IL
37.44°N 88.82°W
37.44°N 88.82°W
5:51 pm CDT Mar 12, 2026
7pm CDT Mar 12, 2026-6pm CDT Mar 19, 2026
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