Air Quality in Rancho Santa Margarita, United States

Partly Cloudy
20.3°C · 53.6% humidity
20.3°
Feels 20.3°
33
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
34 6pm
34
34
33 9pm
34
27
27 12am
27
27
27 3am
27
27
27 6am
27
34
34 9am
34
34
34 12pm
34
34
34 3pm
34
34
AD 728×90

Air Quality Index Trend

46h · 9 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.

53.6%
Humidity
22.0 km/h
Wind SSW
1009.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
33
7.93 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Rancho Santa Margarita?

Temperature & Precipitation

PM2.5 Trend

46h · 9 stations
PM2.57.93 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (1 station within 25 km)
7.93
Median
7.93
Average
7.93
Low
7.93
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -0.8

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

06-09
28.4° 16.7°
06-10
28.2° 17.1°
06-11
25.4° 17.0°
06-12
28.0° 17.4°
0.13 mm
06-13
31.7° 18.6°
06-14
28.3° 20.3°
06-15
25.3° 15.0°
Both models agree Avg diff: 3.3°C

Where are air quality stations near Rancho Santa Margarita?

33
Century High School
24.8 km PM2.5: 7.9 µg/m³
20
Kennedy Elementary
25.4 km PM2.5: 4.8 µg/m³
22
Monroe Elementary
25.4 km PM2.5: 5.2 µg/m³
19
Villa Intermediate
25.4 km PM2.5: 4.5 µg/m³
11
Davis Elementary
27.4 km PM2.5: 2.7 µg/m³

What cities are near Rancho Santa Margarita?

25 Mission Viejo 25 Lake Forest 27 Ladera Ranch 25 Laguna Hills 25 Laguna Woods 25 Aliso Viejo 25 Stonegate 26 Laguna Niguel 26 San Juan Capistrano 25 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 2026-06-09T04:31 UTC.