What is the air quality in Decatur today?

The current Air Quality Index (AQI) in Decatur is 36 (Good). PM2.5 concentration is 8.65 µg/m³.

What is the temperature in Decatur right now?

The current temperature in Decatur is 16.5°C (feels like 16.5°C). Humidity is 49.5% and wind speed is 17.6 km/h.

Is it safe to go outside in Decatur?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Decatur, United States

Clear

16.5°C · 49.5% humidity

16.5°

Feels 16.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

44h · 2 stn

View full history →

Decatur's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

49.5%

Humidity

17.6 km/h

Wind NNE

1020.5 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.65 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Decatur?

Temperature & Precipitation

PM2.5 Trend

44h · 2 stations

PM2.58.65 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (2 stations within 25 km)

8.65

Median

8.65

Average

8.2

Low

9.1

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -2.7

What is the 7-day forecast for Decatur?

10-20

18.7° 2.0°

10-21

23.8° 11.9°

10-22

24.2° 12.2°

10-23

21.6° 7.4°

0.19 mm

10-24

21.2° 12.1°

10-25

18.8° 3.8°

10-26

24.6° 9.6°

0.06 mm

Both models agree Avg diff: 3.1°C

Where are air quality stations near Decatur?

Decatur, Alabama, USA

8.7 km PM2.5: 8.2 µg/m³

Decatur, Alabama, USA

8.7 km PM2.5: 7.2 µg/m³

Decatur, Alabama, USA

8.7 km PM2.5: 9.1 µg/m³

What cities are near Decatur?

38 Madison 38 Huntsville 27 Cullman 28 East Florence 28 Florence 30 Albertville 39 Dixiana 24 Tullahoma 40 Center Point 39 Gadsden

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-20T21:44 UTC.