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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

86°F

30°C

Humidity 51%
Wind Speed S 16 G 25 mph
Barometer 29.93 in (1012.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 20 Jun 6:54 pm CDT
Extended Forecast for

3 Miles NNE Shelbyville IL

Heat Advisory June 21, 12:00pm until June 24, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 73. South wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. Heat index values as high as 102. South southwest wind 8 to 15 mph, with gusts as high as 28 mph.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 74. South southwest wind 7 to 10 mph, with gusts as high as 24 mph.

    Low: 74 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 93. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 74. South wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 74 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 93. South southwest wind 5 to 8 mph, with gusts as high as 16 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. South wind 3 to 6 mph. Winds could gust as high as 15 mph.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 73. South wind 7 to 9 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 93. Heat index values as high as 102. South southwest wind 8 to 15 mph, with gusts as high as 28 mph.
Saturday Night
Clear, with a low around 74. South southwest wind 7 to 10 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 93. South southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 74. South wind 6 to 8 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 93. South southwest wind 5 to 8 mph, with gusts as high as 16 mph.
Monday Night
Mostly clear, with a low around 74. South wind 3 to 6 mph. Winds could gust as high as 15 mph.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Shelbyville IL
 39.44°N 88.79°W (Elev. 673 ft)
Last Update:
6:41 pm CDT Jun 20, 2025
Forecast Valid:
7pm CDT Jun 20, 2025-6pm CDT Jun 27, 2025
 
Forecast Discussion
 
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