National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

87°F

31°C

Humidity 37%
Wind Speed S 9 mph
Barometer 30.02 in (1016.1 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 15 Jun 3:54 pm CDT
Extended Forecast for

Decatur IL

  • Tonight

    Tonight: Mostly clear, with a low around 66. South southeast wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 94. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 94 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. South wind 8 to 10 mph, with gusts as high as 17 mph.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 96. Heat index values as high as 102. South wind 9 to 15 mph, with gusts as high as 25 mph.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 76. South wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 76 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. South wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 88 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 73. South wind 7 to 14 mph, with gusts as high as 22 mph.

    Low: 73 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 90.

    High: 90 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 66. South southeast wind 9 to 11 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 94. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 74. South wind 8 to 10 mph, with gusts as high as 17 mph.
Monday
Sunny and hot, with a high near 96. Heat index values as high as 102. South wind 9 to 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 76. South wind 11 to 14 mph, with gusts as high as 23 mph.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. South wind 11 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 73. South wind 7 to 14 mph, with gusts as high as 22 mph.
Juneteenth
Partly sunny, with a high near 90.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 94.
Thursday Night
Partly cloudy, with a low around 72.
Friday
Mostly sunny and hot, with a high near 95.
Friday Night
Partly cloudy, with a low around 74.
Saturday
Mostly sunny and hot, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur IL
 39.86°N 88.94°W (Elev. 682 ft)
Last Update:
3:26 pm CDT Jun 15, 2024
Forecast Valid:
4pm CDT Jun 15, 2024-6pm CDT Jun 22, 2024
 
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Additional Resources

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High Temperature

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Chance of Precipitation