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 | 98% |
| Wind Speed | S 5 mph |
| Barometer | 30.07 in |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 15 Aug 3:35 am CDT |
Extended Forecast for
Christopher IL
Extreme Heat Warning August 15, 03:56am until August 16, 08:00pm
NOW until 8:00pm Sun

Extreme Heat Warning
Overnight

Low: 78 °F
Clear
Saturday

High: 97 °F
Hot
Saturday Night

Low: 76 °F
Clear
Sunday

High: 98 °F
Hot
Sunday Night

Low: 73 °F
Chance
T-stormsMonday

High: 89 °F
Mostly Sunny
Monday Night

Low: 68 °F
Partly Cloudy
Tuesday

High: 91 °F
Sunny
Detailed Forecast
Overnight
Clear, with a steady temperature around 78. Calm wind.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 109. Light and variable wind becoming south southwest 5 to 7 mph in the morning.
Saturday Night
Clear, with a low around 76. South southwest wind 3 to 6 mph.
Sunday
Mostly sunny and hot, with a high near 98. Heat index values as high as 111. West wind 5 to 8 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. North northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 89. North wind 3 to 8 mph.
Monday Night
Partly cloudy, with a low around 68. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 91. Calm wind.
Tuesday Night
Mostly clear, with a low around 72. East southeast wind 3 to 7 mph.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 95. South southwest wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. North wind 6 to 11 mph.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. North northeast wind 5 to 9 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. East northeast wind 3 to 7 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. East northeast wind 3 to 8 mph.
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ABOUT THIS FORECAST
Point Forecast:
Christopher IL
37.98°N 89.05°W
37.98°N 89.05°W
3:21 am CDT Aug 15, 2026
3am CDT Aug 15, 2026-6pm CDT Aug 21, 2026



