Air Quality in Rancho Santa Margarita, United States

Windy
33.8°C · 21.1% humidity
33.8°
Feels 33.8°
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast
54 12pm
54
54
38 3pm
43
46
48 6pm
50
51
52 9pm
52
53
53 12am
53
54
54 3am
54
54
54 6am
54
54
54 9am
54
54
AD 728×90

Air Quality Index Trend

45h · 7 stn

Rancho Santa Margarita's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

21.1%
Humidity
49.9 km/h
Wind SW
1007.4 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
38
9.14 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Rancho Santa Margarita?

Temperature & Precipitation

PM2.5 Trend

45h · 7 stations
PM2.59.14 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250

What is the 7-day forecast for Rancho Santa Margarita?

09-05
30.2° 23.6°
09-06
33.8° 20.6°
09-07
32.8° 23.9°
0.19 mm
09-08
31.2° 19.6°
0.19 mm
09-09
34.1° 19.6°
09-10
31.1° 17.1°
09-11
37.1° 21.8°
Both models agree Avg diff: 4.1°C

Where are air quality stations near Rancho Santa Margarita?

29
Century High School
24.8 km PM2.5: 7.0 µg/m³
20
Kennedy Elementary
25.4 km PM2.5: 4.8 µg/m³
8
Monroe Elementary
25.4 km PM2.5: 2.0 µg/m³
11
Villa Intermediate
25.4 km PM2.5: 2.7 µg/m³
11
Davis Elementary
27.4 km PM2.5: 2.7 µg/m³

What cities are near Rancho Santa Margarita?

37 Mission Viejo 36 Lake Forest 38 Ladera Ranch 36 Laguna Hills 36 Laguna Woods 36 Aliso Viejo 36 Stonegate 36 Laguna Niguel 37 San Juan Capistrano 35 Northwood
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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 2026-09-05T22:01 UTC.