Air Quality in Fountain Valley, United States
Windy
24.1°C · 55.3% humidity
24.1°
Feels 24.1°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Fountain Valley's air quality — share it
AQI Forecast
34
1pm
34
34
20
4pm
24
27
22
7pm
23
24
25
10pm
26
26
26
1am
34
34
34
4am
34
27
27
7am
27
34
34
10am
34
34
Air Quality Index Trend
48h · 2 stnFountain Valley's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
55.3%
Humidity
59.2 km/h
Wind SW
1006.3 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
4.94 µg/m³
PM10▲
27.4 µg/m³
050100150200300500
What is the weather forecast for Fountain Valley?
Temperature & Precipitation
PM2.5 Trend
48h · 2 stationsPM2.54.94 µg/m³
✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX12.9
Extreme
Station readings (1 station within 25 km)
4.94
Median
4.94
Average
4.94
Low
4.94
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +5.9
What is the 7-day forecast for Fountain Valley?
07-21
26.2° 22.3°
07-22
24.9° 21.6°
07-23
24.9° 20.9°
07-24
30.0° 22.1°
07-25
26.7° 21.8°
07-26
28.7° 21.1°
07-27
28.0° 22.1°
Both models agree
Avg diff: 2.7°C
Where are air quality stations near Fountain Valley?
8
Monroe Elementary
20
Kennedy Elementary
11
Davis Elementary
20
Century High School
11
Villa Intermediate
What cities are near Fountain Valley?
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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 2026-07-21T23:44 UTC.