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 Index78°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
Click here for hazard details and duration
Extreme Heat Warning
  •  
    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

    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.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 76. South southwest wind 3 to 6 mph.

    Low: 76 °F

    Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 98. Heat index values as high as 111. West wind 5 to 8 mph.

    High: 98 °F

    Hot

  • Sunday Night

    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%.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 89. North wind 3 to 8 mph.

    High: 89 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. North wind around 5 mph becoming calm  in the evening.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 91. Calm wind.

    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
3:21 am CDT Aug 15, 2026
3am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
 
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Additional Resources

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