Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Overcast
81°F
27°C
| Humidity | 79% |
| Wind Speed | S 9 mph |
| Barometer | 29.99 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 86°F (30°C) |
| Last update | 15 Oct 12:45 pm CDT |
Extended Forecast for
5 Miles S Marion IL
This Afternoon

High: 87 °F
Chance
T-stormsTonight

Low: 49 °F
Chance
ShowersFriday
High: 59 °F
Slight Chance
Showers then
Partly SunnyFriday Night

Low: 41 °F
Mostly Cloudy
Saturday

High: 60 °F
Sunny
Saturday Night

Low: 36 °F
Clear then
Areas FrostSunday

High: 66 °F
Areas Frost
then SunnySunday Night

Low: 39 °F
Mostly Clear
Monday

High: 71 °F
Sunny
Detailed Forecast
This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Southwest wind 10 to 13 mph, with gusts as high as 21 mph.
Tonight
A chance of showers and thunderstorms. Increasing clouds, with a low around 49. West southwest wind 7 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 40%.
Friday
A 10 percent chance of showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 59. Northwest wind 16 to 18 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 41. North wind 11 to 15 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 60. North northeast wind 7 to 10 mph.
Saturday Night
Areas of frost after 5am. Otherwise, clear, with a low around 36. Calm wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 66. Calm wind becoming southeast around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 39. Calm wind.
Monday
Sunny, with a high near 71. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 44. Calm wind.
Tuesday
Mostly sunny, with a high near 74. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 46. Calm wind.
Wednesday
Sunny, with a high near 77. Light and variable wind.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
5 Miles S Marion IL
37.65°N 88.95°W
37.65°N 88.95°W
12:41 pm CDT Oct 15, 2026
1pm CDT Oct 15, 2026-6pm CDT Oct 21, 2026



