Air Quality in Rancho Santa Margarita, United States

Windy
19.9°C · 49.7% humidity
19.9°
Feels 19.9°
41
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
45 8pm
41
45
45 11pm
45
32
32 2am
32
32
20 5am
20
20
20 8am
20
20
32 11am
32
20
20 2pm
20
20
20 5pm
20
20
Station readings
45
41
CAMS model adj -5
50
50
50
50
50
37
37
37
37
25
25
25
25
25
25
37
37
25
25
25
25
25
25
25
AD 728×90

PM2.5 Trend (24h)

22h · 9 stations
49.7%
Humidity
82.0 km/h
Wind WSW
1011.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Rancho Santa Margarita?

Temperature & Precipitation

PM2.59.89 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (1 station within 25 km)
9.89
Median
9.89
Average
9.89
Low
9.89
High
PM2.5 µg/m³ · Model: 8.9 · Bias: -1.0

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

04-09
23.1° 15.7°
04-10
19.9° 13.9°
14.63 mm
04-11
17.4° 12.8°
20.94 mm
04-12
16.2° 12.0°
0.88 mm
04-13
17.1° 11.6°
0.13 mm
04-14
22.1° 12.8°
04-15
24.0° 16.7°
Both models agree Avg diff: 3.2°C

Where are air quality stations near Rancho Santa Margarita?

41
Century High School
24.8 km PM2.5: 9.9 µg/m³
42
Kennedy Elementary
25.4 km PM2.5: 10.0 µg/m³
39
Monroe Elementary
25.4 km PM2.5: 9.4 µg/m³
43
Villa Intermediate
25.4 km PM2.5: 10.4 µg/m³
38
Davis Elementary
27.4 km PM2.5: 9.2 µg/m³

What cities are near Rancho Santa Margarita?

41 Mission Viejo 41 Lake Forest 28 Ladera Ranch 41 Laguna Hills 41 Laguna Woods 41 Aliso Viejo 41 Stonegate 28 Laguna Niguel 21 San Juan Capistrano 41 Northwood

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T23:16 UTC.