Current conditions at

Decatur Airport (KDEC)

Lat: 39.83° N Lon: 88.87° W Elev: 670 ft.

Fair

78°F

26°C

Humidity 74%
Wind Speed Calm
Barometer 29.98 in (1014.7 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 12 Jul 8:54 pm CDT
Detailed forecast for

Macon County

Tonight
Partly cloudy. Lows in the upper 60s. Northwest winds 5 to 10 mph.
Sunday
Partly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 80s. East winds around 5 mph, becoming southwest around 5 mph in the afternoon. Chance of rain 30 percent.
Sunday Night
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 60s. Southwest winds around 5 mph, becoming southeast after midnight.
Monday
Mostly sunny. Highs in the upper 80s. South winds around 5 mph.
Monday Night
Partly cloudy. Lows around 70. Southeast winds around 5 mph.
Tuesday
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent.
Tuesday Night
Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 40 percent.
Wednesday
Partly sunny with a chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs in the upper 80s. Chance of rain 60 percent.
Wednesday Night And Thursday
Partly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. Highs in the upper 80s. Chance of rain 50 percent.
Thursday Night
Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of rain 50 percent.
Friday
Partly sunny. Highs in the mid 80s.
Friday Night And Saturday
Partly cloudy. Lows in the mid 60s. Highs in the mid 80s.



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536 PM CDT Sat Jul 12 2025
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database