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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

95°F

35°C

Humidity 44%
Wind Speed NW 10 G 18 mph
Barometer 29.94 in (1013.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 5 Sep 12:54 pm CDT
Extended Forecast for

2 Miles N Decatur Airport IL

Extreme Heat Warning September 5, 02:58pm until September 5, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 5, 02:58pm until September 5, 07:00pm

    NOW until 7:00pm Sat

    Extreme Heat Warning

  • This Afternoon

    High: 98 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 66. Northeast wind 8 to 13 mph, with gusts as high as 16 mph.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 86. East northeast wind 9 to 13 mph, with gusts as high as 16 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60. East wind 6 to 10 mph, with gusts as high as 15 mph.

    Low: 60 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 86. East wind 6 to 9 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. East wind 5 to 9 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. South wind 5 to 9 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 98. Heat index values as high as 104. North northwest wind around 10 mph.
Tonight
Partly cloudy, with a low around 66. Northeast wind 8 to 13 mph, with gusts as high as 16 mph.
Sunday
Sunny, with a high near 86. East northeast wind 9 to 13 mph, with gusts as high as 16 mph.
Sunday Night
Mostly clear, with a low around 60. East wind 6 to 10 mph, with gusts as high as 15 mph.
Labor Day
Sunny, with a high near 86. East wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 61. East wind 5 to 9 mph.
Tuesday
Sunny, with a high near 94. South wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny and hot, with a high near 97.
Wednesday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 66.
Thursday
A chance of showers. Partly sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Decatur Airport IL
 39.86°N 88.88°W (Elev. 610 ft)
Last Update:
1:26 pm CDT Sep 5, 2026
Forecast Valid:
2pm CDT Sep 5, 2026-6pm CDT Sep 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation