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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

81°F

27°C

Humidity 79%
Wind Speed NE 5 mph
Barometer 29.93 in (1012.9 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 4 Sep 8:54 pm CDT
Extended Forecast for

3 Miles E Cisco IL

Extreme Heat Warning September 4, 09:35pm until September 5, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 4, 09:35pm until September 5, 07:00pm

    NOW until 7:00pm Sat

    Extreme Heat Warning

  • Tonight

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 95. Heat index values as high as 103. Light and variable wind becoming north 5 to 10 mph in the morning.

    High: 95 °F

    Hot

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 67. Northeast wind 8 to 13 mph, with gusts as high as 16 mph.

    Low: 67 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 85. East northeast wind 9 to 13 mph, with gusts as high as 16 mph.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. East wind 7 to 11 mph.

    Low: 62 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 85. East wind 7 to 10 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. East wind 6 to 10 mph.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 73. Light south southwest wind.
Saturday
Sunny and hot, with a high near 95. Heat index values as high as 103. Light and variable wind becoming north 5 to 10 mph in the morning.
Saturday Night
Increasing clouds, with a low around 67. Northeast wind 8 to 13 mph, with gusts as high as 16 mph.
Sunday
Mostly sunny, with a high near 85. East northeast wind 9 to 13 mph, with gusts as high as 16 mph.
Sunday Night
Mostly clear, with a low around 62. East wind 7 to 11 mph.
Labor Day
Sunny, with a high near 85. East wind 7 to 10 mph.
Monday Night
Mostly clear, with a low around 63. East wind 6 to 10 mph.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny and hot, with a high near 96.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 70.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Cisco IL
 40.03°N 88.67°W (Elev. 682 ft)
Last Update:
7:36 pm CDT Sep 4, 2026
Forecast Valid:
9pm CDT Sep 4, 2026-6pm CDT Sep 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation