Air Quality in Port Arthur, United States

Clear
35.0°C · 41.8% humidity
35.0°
Feels 38.8°
54
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast
54 6pm
34
54
54 9pm
54
54
54 12am
54
54
54 3am
54
54
66 6am
66
54
54 9am
54
54
54 12pm
54
54
54 3pm
54
54
AD 728×90

Air Quality Index Trend

38h · 1 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.

41.8%
Humidity
35.1 km/h
Wind W
1012.8 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
54
13.5 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Port Arthur?

Temperature & Precipitation

PM2.5 Trend

38h · 1 station
PM2.513.5 µg/m³ ✓ WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX5.9
High
AD 300×250

What is the 7-day forecast for Port Arthur?

08-03
35.0° 25.1°
08-04
32.5° 26.2°
2.75 mm
08-05
34.4° 24.5°
5.69 mm
08-06
34.7° 25.9°
0.19 mm
08-07
32.3° 25.3°
1.44 mm
08-08
30.6° 25.9°
7.5 mm
08-09
34.4° 25.9°
0.38 mm
Both models agree Avg diff: 1.2°C

Where are air quality stations near Port Arthur?

41
Port Arthur Memorial School, Beaumont, Texas
5.3 km PM2.5: 9.8 µg/m³

What cities are near Port Arthur?

54 Groves 54 Nederland 48 Beaumont 34 Orange 14 Sulphur 14 Lake Charles 31 Baytown 34 Galveston 30 La Porte 26 Texas City
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T02:11 UTC.