Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

81°F

27°C

Humidity 35%
Wind Speed Calm
Barometer 30.14 in (1020.2 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 29 Sep 6:54 pm CDT
Extended Forecast for

Macon IL

  • Tonight

    Tonight: Clear, with a low around 60. East northeast wind around 6 mph.

    Low: 60 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Northeast wind 5 to 11 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56. East northeast wind around 7 mph.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 86. East wind around 7 mph.

    High: 86 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 58. East wind around 6 mph.

    Low: 58 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 85. South southeast wind around 6 mph.

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 58. Southeast wind 3 to 6 mph.

    Low: 58 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

Detailed Forecast

Tonight
Clear, with a low around 60. East northeast wind around 6 mph.
Tuesday
Sunny, with a high near 88. Northeast wind 5 to 11 mph.
Tuesday Night
Partly cloudy, with a low around 56. East northeast wind around 7 mph.
Wednesday
Partly sunny, with a high near 86. East wind around 7 mph.
Wednesday Night
Mostly cloudy, with a low around 58. East wind around 6 mph.
Thursday
Mostly sunny, with a high near 85. South southeast wind around 6 mph.
Thursday Night
Clear, with a low around 58. Southeast wind 3 to 6 mph.
Friday
Sunny, with a high near 86.
Friday Night
Clear, with a low around 60.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Macon IL
 39.71°N 89.01°W (Elev. 699 ft)
6:40 pm CDT Sep 29, 2025
7pm CDT Sep 29, 2025-6pm CDT Oct 6, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database