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 | 98% |
| Wind Speed | S 3 mph |
| Barometer | 30.06 in |
| Dewpoint | 78°F (26°C) |
| Visibility | 10.00 mi |
| Heat Index | 84°F (29°C) |
| Last update | 15 Aug 2:15 am CDT |
Extended Forecast for
Spillertown IL
Extreme Heat Warning August 15, 02:35am until August 16, 08:00pm
NOW until 8:00pm Sun
Extreme Heat Warning
Overnight
Low: 78 °F
Clear
Saturday
High: 98 °F
Hot
Saturday Night
Low: 77 °F
Clear
Sunday
High: 99 °F
Hot
Sunday Night
Low: 73 °F
Chance
T-stormsMonday
High: 90 °F
Mostly Sunny
then Slight
Chance
T-stormsMonday Night
Low: 68 °F
Partly Cloudy
Tuesday
High: 91 °F
Sunny
Detailed Forecast
Overnight
Clear, with a steady temperature around 78. South wind 3 to 5 mph.
Saturday
Sunny and hot, with a high near 98. Heat index values as high as 106. South southwest wind 5 to 8 mph becoming west in the morning.
Saturday Night
Clear, with a low around 77. South southwest wind 5 to 7 mph.
Sunday
Mostly sunny and hot, with a high near 99. Heat index values as high as 107. West wind 6 to 9 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. North northwest wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Light north wind becoming north northwest 5 to 9 mph in the morning.
Monday Night
Partly cloudy, with a low around 68. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 91. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 72. Calm wind becoming south 5 to 7 mph after midnight.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 95. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. North wind 6 to 11 mph.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. North northeast wind 5 to 9 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Northeast wind 3 to 8 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Northeast wind 5 to 9 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Spillertown IL
37.76°N 88.92°W
37.76°N 88.92°W
1:26 am CDT Aug 15, 2026
2am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
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