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.

Overcast

56°F

13°C

Humidity 81%
Wind Speed W 10 mph
Barometer 29.78 in (1008.4 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 4 Nov 4:54 pm CST
Extended Forecast for

Macon IL

  • This Afternoon

    This Afternoon: A slight chance of drizzle. Cloudy, with a high near 60. West southwest wind 10 to 13 mph, with gusts as high as 17 mph.

    High: 60 °F

    Slight Chance
    Drizzle

  • Tonight

    Tonight: A slight chance of drizzle before 10pm. Mostly cloudy, with a low around 44. West southwest wind 8 to 10 mph, with gusts as high as 16 mph.

    Low: 44 °F

    Slight Chance
    Drizzle then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 58. West southwest wind 9 to 15 mph, with gusts as high as 21 mph.

    High: 58 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. West wind 6 to 10 mph becoming north after midnight.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 51. North wind 9 to 13 mph, with gusts as high as 17 mph.

    High: 51 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. North wind 5 to 7 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 52. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of drizzle. Cloudy, with a high near 60. West southwest wind 10 to 13 mph, with gusts as high as 17 mph.
Tonight
A slight chance of drizzle before 10pm. Mostly cloudy, with a low around 44. West southwest wind 8 to 10 mph, with gusts as high as 16 mph.
Thursday
Partly sunny, with a high near 58. West southwest wind 9 to 15 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 41. West wind 6 to 10 mph becoming north after midnight.
Friday
Partly sunny, with a high near 51. North wind 9 to 13 mph, with gusts as high as 17 mph.
Friday Night
Mostly clear, with a low around 31. North wind 5 to 7 mph becoming calm in the evening.
Saturday
Sunny, with a high near 52. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 63.
Monday Night
Clear, with a low around 38.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 39.
Veterans Day
Sunny, with a high near 64.
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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:
4:21 pm CST Nov 4, 2026
Forecast Valid:
4pm CST Nov 4, 2026-6pm CST Nov 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation