National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 90%
Wind Speed SE 3 mph
Barometer 29.95 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 28 Jun 10:15 pm CDT
Extended Forecast for

Christopher IL

Extreme Heat Warning June 29, 11:00am until July 2, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Tonight

    Tonight: Mostly clear, with a low around 74. South wind 3 to 5 mph.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95. Heat index values as high as 110. South southwest wind 5 to 11 mph.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South southwest wind 5 to 9 mph becoming light southwest after midnight.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 96. Heat index values as high as 109. South southwest wind 3 to 8 mph.

    High: 96 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74. South wind around 6 mph becoming calm in the evening.

    Low: 74 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Calm wind becoming south around 6 mph in the afternoon.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 76. South wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Calm wind becoming south around 6 mph in the afternoon.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 74. South wind 3 to 5 mph.
Monday
Sunny, with a high near 95. Heat index values as high as 110. South southwest wind 5 to 11 mph.
Monday Night
Mostly clear, with a low around 75. South southwest wind 5 to 9 mph becoming light southwest after midnight.
Tuesday
Sunny, with a high near 96. Heat index values as high as 109. South southwest wind 3 to 8 mph.
Tuesday Night
Clear, with a low around 74. South wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 96. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 97. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 76. Light and variable wind.
Independence Day
A slight chance of showers and thunderstorms. Sunny, with a high near 96. Calm wind.
Saturday Night
Mostly clear, with a low around 75. Calm wind.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 95. Calm wind becoming west southwest around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Christopher IL
 37.98°N 89.05°W
Last Update:
9:35 pm CDT Jun 28, 2026
Forecast Valid:
10pm CDT Jun 28, 2026-6pm CDT Jul 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation