Today | Weather | Wednesday, October 28, 2026

Weather in Decatur, Alabama

09:53 AM
Now
Cloudy Weather
63° F
Feels Like 66°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 2
Humidity 58 %
Today
Cloudy Weather
Day 75°
Night 46°
Precipitation 4 %
Wind 6 mph
UV Index (0 - 11+) 4

Decatur Weather Forecast Updated

Weather Forecast History
Last Year's Weather on This Day (October 28, 2025)
Cloudy Weather

Day

61°

Night

52°

Wind

6 mph

UV Index

1

Precipitation

21 %

Air Quality in Decatur

NOW
36 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 8.66 µg/m³
PM10 11.46 µg/m³
O3 0.025 ppm
NO2 3.1 ppb
SO2 0.4 ppb
CO 0.15 ppm
NH3 1.01 µg/m³
NO 0.7 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 8.66 µg/m³
PM10 – 11.46 µg/m³
O3 – 48.93 µg/m³
NO2 – 5.76 µg/m³
SO2 – 1.01 µg/m³
CO – 173.98 µg/m³
NH3 – 1.01 µg/m³
NO – 0.7 µg/m³