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Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
77°F
25°C
| Humidity | 91% |
| Wind Speed | Calm |
| Barometer | 30.02 in |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 18 Aug 2:15 am CDT |
Extended Forecast for
3 Miles WSW Whiteash IL
Heat Advisory August 18, 02:20am until August 19, 07:00pm
NOW until 7:00pm Tue
Heat Advisory
Overnight
Low: 75 °F
Partly Cloudy
Monday
High: 99 °F
Hot
Monday Night
Low: 74 °F
Mostly Clear
Tuesday
High: 98 °F
Sunny then
Chance
T-stormsTuesday Night
Low: 74 °F
Chance
T-stormsWednesday
High: 92 °F
Chance
T-stormsWednesday Night
Low: 68 °F
Partly Cloudy
Thursday
High: 90 °F
Mostly Sunny
Detailed Forecast
Overnight
Partly cloudy, with a low around 75. Calm wind.
Monday
Sunny and hot, with a high near 99. Heat index values as high as 105. Southeast wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Calm wind becoming west northwest around 5 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 92. Calm wind becoming north northeast 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 68. North northeast wind 5 to 8 mph.
Thursday
Mostly sunny, with a high near 90. North northeast wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 67. North northeast wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 92. North northeast wind 3 to 6 mph.
Friday Night
Mostly clear, with a low around 67. North wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 65. North northwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 86. North wind 3 to 8 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles WSW Whiteash IL
37.78°N 88.97°W
37.78°N 88.97°W
1:45 am CDT Aug 18, 2025
2am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
Additional Resources
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Hourly Weather Forecast
