Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

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

A Few Clouds

72°F

22°C

Humidity 97%
Wind Speed NA
Barometer 29.97 in (1014.4 mb)
Dewpoint 71°F (22°C)
Visibility 7.00 mi
Last update 9 Jun 4:54 am CDT
Detailed forecast for

Macon County

Today
Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent.
Tonight
Partly cloudy with a slight chance of showers and thunderstorms. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 20 percent.
Wednesday
Sunny with highs in the lower 90s. Southwest winds 15 to 20 mph. Heat index values up to 101.
Wednesday Night
Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
Thursday
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Breezy with highs in the lower 90s. Southwest winds 10 to 15 mph, becoming south 15 to 25 mph in the afternoon. Chance of rain 50 percent. Heat index values up to 101.
Thursday Night
Showers with a chance of thunderstorms in the evening. Lows in the mid 60s. Chance of rain 80 percent.
Friday Through Saturday
Mostly clear. Highs in the mid 80s. Lows in the lower 60s.
Saturday Night Through Sunday Night
Partly cloudy with a chance of showers. Lows in the lower 60s. Highs around 80. Chance of rain 30 percent.
Monday
Mostly sunny. Highs in the upper 70s.



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437 AM CDT Tue Jun 9 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database