Current conditions at

Decatur Airport (KDEC)

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

Fair

76°F

24°C

Humidity 47%
Wind Speed S 7 mph
Barometer 29.91 in (1012.5 mb)
Dewpoint 54°F (12°C)
Visibility 9.00 mi
Heat Index78°F (26°C)
Last update 29 May 7:54 pm CDT
Detailed forecast for

Macon County

Tonight
Mostly cloudy. Lows in the lower 60s. Southeast winds around 5 mph.
Saturday
Partly sunny in the morning, then becoming mostly cloudy. Highs in the lower 80s. East winds 10 to 15 mph.
Saturday Night
Mostly cloudy. Lows in the upper 50s. East winds 10 to 15 mph.
Sunday
Mostly sunny. Highs in the upper 70s. Southeast winds 5 to 10 mph.
Sunday Night
Partly cloudy. A chance of showers after midnight. Lows in the upper 50s. East winds around 5 mph. Chance of rain 40 percent.
Monday
Mostly sunny. Highs in the lower 80s.
Monday Night Through Wednesday Night
Mostly clear. Lows in the upper 50s. Highs in the lower 80s.
Thursday And Thursday Night
Partly cloudy. Highs in the lower 80s. Lows in the lower 60s.
Friday
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30 percent.



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757 PM CDT Fri May 29 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database