Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
79°F
26°C
| Humidity | 84% |
| Wind Speed | SW 7 mph |
| Barometer | 30.05 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 16 Aug 6:45 am CDT |
Extended Forecast for
Valier IL
Extreme Heat Warning August 16, 06:47am until August 16, 08:00pm
NOW until 8:00pm Sun
Extreme Heat Warning
Today
High: 97 °F
Mostly Sunny
then Slight
Chance
T-stormsTonight
Low: 73 °F
Chance
T-storms then
Chance
ShowersMonday
High: 88 °F
Slight Chance
Showers then
Mostly SunnyMonday Night
Low: 67 °F
Mostly Clear
Tuesday
High: 91 °F
Sunny
Tuesday Night
Low: 71 °F
Mostly Clear
then Slight
Chance
T-stormsWednesday
High: 92 °F
Chance
ShowersWednesday Night
Low: 69 °F
Chance
T-storms
Detailed Forecast
Today
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 111. West southwest wind 5 to 9 mph becoming northwest in the morning.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. Light north northwest wind.
Monday
A 10 percent chance of showers before 7am. Mostly sunny, with a high near 88. North northwest wind 3 to 8 mph.
Monday Night
Mostly clear, with a low around 67. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 91. Calm wind.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Calm wind.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 92. Calm wind becoming south southwest 5 to 8 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Northeast wind 3 to 7 mph.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 85. North northeast wind 3 to 8 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Northeast wind around 6 mph becoming calm in the evening.
Friday
A slight chance of showers. Mostly sunny, with a high near 85. Calm wind becoming north around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 65. Light north wind.
Saturday
Mostly sunny, with a high near 87. Calm wind becoming north northwest 5 to 7 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Valier IL
38.03°N 89.04°W
38.03°N 89.04°W
4:16 am CDT Aug 16, 2026
6am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
