Air Quality in Fountain Valley, United States

Windy
19.4°C · 64.7% humidity
19.4°
Feels 19.4°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
51 4pm
51
50
23 7pm
48
48
48 10pm
48
35
35 1am
23
23
23 4am
23
23
23 7am
23
23
23 10am
23
23
35 1pm
23
23
Station readings
51
51
50
23
CAMS model adj -2
50
50
50
50
50
50
50
50
37
37
25
25
25
25
25
25
25
25
25
25
25
37
25
25
AD 728×90

PM2.5 Trend (24h)

33h · 2 stations
64.7%
Humidity
62.6 km/h
Wind SSW
1013.5 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Fountain Valley?

Temperature & Precipitation

PM2.59.55 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (5 stations within 25 km)
9.55
Median
9.6
Average
9.17
Low
10.03
High
PM2.5 µg/m³ · Model: 7.4 · Bias: -2.2

What is the 7-day forecast for Fountain Valley?

04-09
20.8° 16.9°
04-10
19.1° 15.9°
13.62 mm
04-11
18.2° 15.0°
15.12 mm
04-12
17.3° 13.6°
0.31 mm
04-13
17.4° 13.8°
0.06 mm
04-14
20.9° 15.4°
04-15
22.0° 17.9°
Both models agree Avg diff: 2.1°C

Where are air quality stations near Fountain Valley?

39
Monroe Elementary
8.4 km PM2.5: 9.3 µg/m³
41
Kennedy Elementary
9.6 km PM2.5: 9.9 µg/m³
38
Davis Elementary
9.9 km PM2.5: 9.1 µg/m³
40
Century High School
9.9 km PM2.5: 9.6 µg/m³
41
Villa Intermediate
10.5 km PM2.5: 9.9 µg/m³

What cities are near Fountain Valley?

40 Huntington Beach 40 Garden Grove 39 Westminster 40 Costa Mesa 40 Santa Ana 40 Newport Beach 39 Stanton 40 Tustin Legacy 40 Tustin 40 Irvine

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T19:38 UTC.