Current conditions at

Decatur Airport (KDEC)

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

Fair

87°F

31°C

Humidity 42%
Wind Speed SW 10 mph
Barometer 30.18 in (1021.3 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 3 Oct 1:54 pm CDT
Detailed forecast for

Macon County

This Afternoon
Mostly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds around 10 mph. Chance of rain 20 percent.
Tonight
Mostly clear. Lows in the lower 60s. South winds around 5 mph.
Saturday
Sunny. Highs in the upper 80s. South winds 10 to 15 mph.
Saturday Night
Clear. Lows in the upper 50s. South winds 5 to 10 mph.
Sunday
Sunny. Highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph.
Sunday Night
Clear. Lows around 60.
Monday
Sunny. Highs in the upper 80s.
Monday Night
Partly cloudy. A chance of showers after midnight. Lows in the lower 60s. Chance of rain 30 percent.
Tuesday
Mostly sunny with a chance of showers. Highs in the lower 80s. Chance of rain 40 percent.
Tuesday Night
Mostly cloudy in the evening, then becoming partly cloudy. Cooler with lows in the lower 50s.
Wednesday Through Thursday
Mostly clear. Highs in the lower 70s. Lows in the mid 40s.



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1253 PM CDT Fri Oct 3 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database