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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

73°F

23°C

Humidity 50%
Wind Speed NW 5 mph
Barometer 29.91 in (1012.4 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 7 Oct 6:54 pm CDT
Extended Forecast for

Macon IL

  • Tonight

    Tonight: Clear, with a low around 53. North northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 53 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Light and variable wind becoming east around 5 mph after midnight.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. South southeast wind 6 to 11 mph, with gusts as high as 17 mph.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 60. South southeast wind around 9 mph, with gusts as high as 15 mph.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 86. South wind 8 to 11 mph, with gusts as high as 16 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 57. East southeast wind 6 to 8 mph.

    Low: 57 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 53. North northwest wind 5 to 8 mph becoming calm after midnight.
Thursday
Sunny, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 55. Light and variable wind becoming east around 5 mph after midnight.
Friday
Sunny, with a high near 85. South southeast wind 6 to 11 mph, with gusts as high as 17 mph.
Friday Night
Clear, with a low around 60. South southeast wind around 9 mph, with gusts as high as 15 mph.
Saturday
Mostly sunny, with a high near 86. South wind 8 to 11 mph, with gusts as high as 16 mph.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 57. East southeast wind 6 to 8 mph.
Sunday
Partly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 57.
Columbus Day
Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Macon IL
 39.71°N 89.01°W (Elev. 699 ft)
Last Update:
6:36 pm CDT Oct 7, 2026
Forecast Valid:
7pm CDT Oct 7, 2026-6pm CDT Oct 14, 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