Today | Weather | Thursday, February 5, 2026

Weather in Decatur, Alabama

07:35 PM
Now
Night
36° F
Feels Like 32°
Precipitation 0 %
Wind 6 mph
Humidity 62 %
Today
Cloudy Weather
Day 37°
Night 30°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 4

Decatur Weather Forecast Updated

Weather Forecast History
Last Year's Weather on This Day (February 5, 2025)

Day

75°

Night

52°

Air Quality in Decatur

NOW
35 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.27 µg/m³
PM10 4.23 µg/m³
O3 0.038 ppm
NO2 2.9 ppb
SO2 0.3 ppb
CO 0.16 ppm
NH3 0.85 µg/m³
NO 0 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)
PM2.53.27 µg/m³
PM104.23 µg/m³
O373.64 µg/m³
NO25.54 µg/m³
SO20.75 µg/m³
CO179.25 µg/m³
NH30.85 µg/m³
NO0 µg/m³