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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Cambria IL

Extreme Heat Warning September 3, 03:54am until September 5, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 3, 03:54am until September 5, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Overnight

    Low: 76 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Heat index values as high as 105. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 75. Calm wind.

    Low: 75 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 98. Heat index values as high as 105. Light and variable wind.

    High: 98 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 98. Light and variable wind.

    High: 98 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 94. Calm wind becoming north northeast 5 to 8 mph in the afternoon.

    High: 94 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 76. Calm wind.
Thursday
Sunny and hot, with a high near 98. Heat index values as high as 105. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Clear, with a low around 75. Calm wind.
Friday
Sunny and hot, with a high near 98. Heat index values as high as 105. Light and variable wind.
Friday Night
Mostly clear, with a low around 75. Calm wind.
Saturday
Sunny and hot, with a high near 98. Light and variable wind.
Saturday Night
Mostly clear, with a low around 73. Calm wind.
Sunday
Sunny, with a high near 94. Calm wind becoming north northeast 5 to 8 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 68. Northeast wind 5 to 7 mph becoming calm after midnight.
Labor Day
Sunny, with a high near 93. Calm wind becoming east around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 70. Light east wind.
Tuesday
Sunny, with a high near 94. Calm wind becoming south southwest 5 to 7 mph in the morning.
Tuesday Night
Mostly clear, with a low around 74. South wind 3 to 7 mph.
Wednesday
Sunny, with a high near 95. Southwest wind 7 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cambria IL
 37.78°N 89.11°W
Last Update:
2:36 am CDT Sep 3, 2026
Forecast Valid:
3am CDT Sep 3, 2026-6pm CDT Sep 9, 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