Air Quality in Fountain Valley, United States
Partly Cloudy
17.8°C · 67.0% humidity
17.8°
Feels 17.8°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations
Nearby Monitoring Stations
Fountain Valley's air quality — share it
AQI Forecast
34
4am
34
54
14
7am
25
33
39
10am
43
46
49
1pm
30
24
25
4pm
26
26
26
7pm
26
27
27
10pm
27
27
27
1am
27
27
Air Quality Index Trend
47h · 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.
67.0%
Humidity
19.2 km/h
Wind SSE
1011.3 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
3.35 µg/m³
PM10▲
27.4 µg/m³
050100150200300500
What is the weather forecast for Fountain Valley?
Temperature & Precipitation
PM2.5 Trend
47h · 2 stationsPM2.53.35 µg/m³
✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX1.4
Low
Station readings (5 stations within 25 km)
3.35
Median
3.34
Average
3.0
Low
3.7
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +7.5
What is the 7-day forecast for Fountain Valley?
05-29
24.9° 17.8°
05-30
20.5° 16.6°
05-31
23.2° 18.6°
06-01
23.1° 18.2°
06-02
24.1° 16.0°
06-03
22.8° 16.3°
06-04
22.0° 17.4°
Both models agree
Avg diff: 2.4°C
Where are air quality stations near Fountain Valley?
14
Monroe Elementary
15
Kennedy Elementary
12
Davis Elementary
14
Century High School
14
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 2026-05-29T14:36 UTC.