Air Quality in Stephenville, United States
Drizzle
23.6°C · 74.7% humidity
23.6°
Feels 23.6°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Stephenville's air quality — share it
AQI Forecast
24
4pm
24
24
28
7pm
25
25
25
10pm
25
25
25
1am
25
25
25
4am
25
25
25
7am
25
25
25
10am
25
25
25
1pm
25
25
Stephenville'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 Stephenville is 1.3× the WHO annual guideline of 5 µg/m³.
74.7%
Humidity
90.8 km/h
Wind ENE
1010.2 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.69 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Stephenville?
Temperature & Precipitation
PM2.56.69 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
What is the 7-day forecast for Stephenville?
05-29
31.8° 15.8°
3.44 mm
05-30
29.6° 21.9°
0.69 mm
05-31
27.9° 17.2°
3.69 mm
06-01
32.9° 19.9°
06-02
32.7° 20.2°
06-03
31.0° 20.8°
0.88 mm
06-04
29.6° 21.7°
0.62 mm
Both models agree
Avg diff: 3.1°C
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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 2026-05-29T00:12 UTC.