Stay updated with real-time air quality in Stephenville, Texas featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
33
Good
Stephenville, Texas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.26 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.33 μg/m³
0
55
155
255
425
605+
28.14 ppb
0
55
71
86
201
201+
0.68 ppb
0
36
76
186
605
1005+
3.33 ppb
0
54
101
361
1250
2050+
0.33 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Stephenville, Texas
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AQI 33
Good
6.31μg/m³
PM2.5
32.14μg/m³
PM10
17.02ppb
O3
0.68ppb
SO2
3.58ppb
NO2
0.33ppm
CO
AQI 44
Good
8.13μg/m³
PM2.5
31.30μg/m³
PM10
28.16ppb
O3
0.69ppb
SO2
3.22ppb
NO2
0.34ppm
CO
AQI 38
Good
7.50μg/m³
PM2.5
26.80μg/m³
PM10
27.11ppb
O3
0.68ppb
SO2
3.00ppb
NO2
0.33ppm
CO
AQI 33
Good
6.23μg/m³
PM2.5
32.75μg/m³
PM10
27.87ppb
O3
0.68ppb
SO2
3.63ppb
NO2
0.33ppm
CO
AQI 33
Good
6.37μg/m³
PM2.5
30.43μg/m³
PM10
27.70ppb
O3
0.68ppb
SO2
3.54ppb
NO2
0.33ppm
CO
AQI 33
Good
6.07μg/m³
PM2.5
27.12μg/m³
PM10
27.22ppb
O3
0.67ppb
SO2
3.45ppb
NO2
0.33ppm
CO
The air quality data for Texas, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Stephenville, Texas are available every hour.
Stephenville, Texas experienced its worst air quality at 08:00:00, 2026-03-09.
The best air quality in Stephenville, Texas was observed at 02:00:00 on 2026-03-09.
The air quality in Stephenville, Texas right now is Good, with an AQI of 33.
In Stephenville, Texas, PM2.5 is the most frequently found pollutant.
When air quality in Stephenville, Texas is compromised, staying indoors and wearing a mask can reduce health risks.
Stephenville, Texas currently has a PM2.5 concentration of 6.258 μg/m3.
Stephenville, Texas currently has a PM10 concentration of 35.332 μg/m3.
The current carbon monoxide (CO) level in Stephenville, Texas is 0.332 ppm.
The current sulfur dioxide (SO2) concentration in Stephenville, Texas is 0.684 ppb.
Stephenville, Texas currently has an ozone (O3) concentration of 28.142 ppm.
The current level of nitrogen dioxide (NO2) in Stephenville, Texas is 3.333 ppb.
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