Today | Weather | Thursday, October 8, 2026

Weather in Decatur, Alabama

08:43 AM
Now
Sunny Weather
66° F
Feels Like 66°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 2
Humidity 79 %
Today
Cloudy Weather
Day 90°
Night 59°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 5

Decatur Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 8, 2025)
Partly Sunny with Showers

Day

77°

Night

55°

Wind

9 mph

UV Index

20

Precipitation

63 %

Air Quality in Decatur

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

Pollutant Concentrations:

PM2.5 9.62 µg/m³
PM10 12.74 µg/m³
O3 0.007 ppm
NO2 2.9 ppb
SO2 0.1 ppb
CO 0.17 ppm
NH3 1.6 µg/m³
NO 3.12 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 – 9.62 µg/m³
PM10 – 12.74 µg/m³
O3 – 14.54 µg/m³
NO2 – 5.5 µg/m³
SO2 – 0.21 µg/m³
CO – 191.91 µg/m³
NH3 – 1.6 µg/m³
NO – 3.12 µg/m³