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
50 3pm
51
51
18 6pm
48
48
48 9pm
48
48
35 12am
35
23
23 3am
23
23
23 6am
23
23
23 9am
23
23
23 12pm
35
23
Station readings
50
51
51
18
CAMS model adj -2
50
50
50
50
50
50
50
50
50
37
37
25
25
25
25
25
25
25
25
25
25
25
37
25
AD 728×90

PM2.5 Trend (24h)

32h · 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
9.77
Average
9.38
Low
10.42
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: 1.8°C

Where are air quality stations near Fountain Valley?

39
Monroe Elementary
8.4 km PM2.5: 9.4 µg/m³
42
Kennedy Elementary
9.6 km PM2.5: 10.1 µg/m³
38
Davis Elementary
9.9 km PM2.5: 9.2 µg/m³
40
Century High School
9.9 km PM2.5: 9.5 µg/m³
42
Villa Intermediate
10.5 km PM2.5: 10.1 µg/m³

What cities are near Fountain Valley?

40 Huntington Beach 40 Garden Grove 40 Westminster 40 Costa Mesa 40 Santa Ana 40 Newport Beach 40 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 2026-04-09T18:52 UTC.