Air Quality in Port Arthur, United States

Partly Cloudy
22.4°C · 53.9% humidity
22.4°
Feels 22.4°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast
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Air Quality Index Trend

35h · 2 stn

Port Arthur's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Port Arthur is 1.1× the WHO 24-hour guideline of 15 µg/m³.

53.9%
Humidity
29.8 km/h
Wind S
1017.5 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
60
16.4 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Port Arthur?

Temperature & Precipitation

PM2.5 Trend

35h · 2 stations
PM2.516.4 µg/m³ ×1.1 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX0.0
Low
Station readings (1 station within 25 km)
16.4
Median
16.4
Average
16.4
Low
16.4
High
PM2.5 µg/m³ · Model: 8.2 · Bias: -8.2

What is the 7-day forecast for Port Arthur?

10-21
25.3° 16.5°
0.5 mm
10-22
27.8° 15.7°
10-23
28.5° 15.6°
0.62 mm
10-24
26.4° 19.1°
0.06 mm
10-25
23.6° 14.6°
0.19 mm
10-26
27.6° 10.7°
10-27
26.5° 13.2°
0.06 mm
Both models agree Avg diff: 2.7°C

Where are air quality stations near Port Arthur?

60
Port Arthur Memorial School, Beaumont, Texas
5.3 km PM2.5: 16.4 µg/m³

What cities are near Port Arthur?

60 Groves 60 Nederland 57 Beaumont 23 Orange 22 Sulphur 22 Lake Charles 40 Baytown 37 Galveston 39 La Porte 37 Texas City
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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 2026-10-21T00:38 UTC.