Air Quality in Rancho Santa Margarita, United States
Windy
28.5°C · 29.1% humidity
28.5°
Feels 28.5°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Rancho Santa Margarita's air quality — share it
AQI Forecast
34
12pm
34
34
17
3pm
22
25
21
6pm
23
24
25
9pm
25
33
33
12am
33
34
54
3am
54
54
54
6am
34
34
34
9am
34
54
Air Quality Index Trend
46h · 12 stnRancho 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.
29.1%
Humidity
44.6 km/h
Wind WSW
1011.8 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
4.14 µg/m³
PM10▲
20.55 µg/m³
050100150200300500
What is the weather forecast for Rancho Santa Margarita?
Temperature & Precipitation
PM2.5 Trend
46h · 12 stationsPM2.54.14 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX14.9
Extreme
Station readings (1 station within 25 km)
4.14
Median
4.14
Average
4.14
Low
4.14
High
PM2.5 µg/m³ · Model: 7.1 · Bias: +3.0
What is the 7-day forecast for Rancho Santa Margarita?
05-28
26.0° 15.6°
05-29
28.7° 16.1°
05-30
22.1° 14.8°
05-31
26.6° 17.5°
06-01
29.1° 16.2°
06-02
28.7° 13.5°
06-03
27.6° 13.3°
Both models agree
Avg diff: 3.0°C
Where are air quality stations near Rancho Santa Margarita?
17
Century High School
16
Kennedy Elementary
15
Monroe Elementary
16
Villa Intermediate
12
Davis Elementary
What cities are near Rancho Santa Margarita?
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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 2026-05-28T22:56 UTC.