Air Quality in Fountain Hills, United States
Clear
39.5°C · 9.9% humidity
39.5°
Feels 39.5°
36
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
AQI Forecast
54
2pm
54
54
36
5pm
41
45
47
8pm
61
51
52
11pm
52
53
53
2am
53
54
54
5am
54
54
34
8am
27
34
34
11am
34
34
Air Quality Index Trend
46h · 11 stnFountain Hills'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 Fountain Hills is 1.7× the WHO annual guideline of 5 µg/m³.
9.9%
Humidity
27.8 km/h
Wind SSE
1007.4 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
8.59 µg/m³
PM10▲
91.15 µg/m³
050100150200300500
What is the weather forecast for Fountain Hills?
Temperature & Precipitation
PM2.5 Trend
46h · 11 stationsPM2.58.59 µg/m³
✓ WHO
Good
PM1091.15 µg/m³
Moderate
UV INDEX4.4
Moderate
What is the 7-day forecast for Fountain Hills?
05-29
39.5° 20.0°
05-30
31.2° 21.1°
05-31
36.6° 23.4°
06-01
38.1° 22.4°
06-02
36.6° 20.6°
1.06 mm
06-03
36.7° 19.5°
06-04
35.1° 21.0°
0.06 mm
Both models agree
Avg diff: 2.9°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 2026-05-29T00:27 UTC.