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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

76°F

24°C

Humidity 82%
Wind Speed SW 8 mph
Barometer 29.97 in (1014.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 4 Sep 6:54 am CDT
Extended Forecast for

Warrensburg IL

Extreme Heat Warning September 4, 07:56am until September 4, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 4, 07:56am until September 4, 07:00pm

    NOW until 7:00pm Fri

    Extreme Heat Warning

  • Today

    High: 97 °F

    Hot

  • Tonight

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

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 95. Heat index values as high as 103. Calm wind becoming north 5 to 9 mph in the morning.

    High: 95 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. East northeast wind 7 to 9 mph.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86. East northeast wind 8 to 13 mph, with gusts as high as 16 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. East wind 7 to 13 mph, with gusts as high as 16 mph.

    Low: 62 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 87. East wind 8 to 10 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 97. Heat index values as high as 102. Southwest wind 7 to 9 mph, with gusts as high as 15 mph.
Tonight
Mostly clear, with a low around 74. South southwest wind 3 to 5 mph.
Saturday
Sunny and hot, with a high near 95. Heat index values as high as 103. Calm wind becoming north 5 to 9 mph in the morning.
Saturday Night
Mostly clear, with a low around 68. East northeast wind 7 to 9 mph.
Sunday
Sunny, with a high near 86. East northeast wind 8 to 13 mph, with gusts as high as 16 mph.
Sunday Night
Mostly clear, with a low around 62. East wind 7 to 13 mph, with gusts as high as 16 mph.
Labor Day
Sunny, with a high near 87. East wind 8 to 10 mph.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Mostly sunny and hot, with a high near 95.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Warrensburg IL
 39.93°N 89.05°W (Elev. 699 ft)
Last Update:
7:36 am CDT Sep 4, 2026
Forecast Valid:
7am CDT Sep 4, 2026-6pm CDT Sep 10, 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