Air Quality in Stevenson Ranch, United States

Clear
28.4°C · 48.7% humidity
28.4°
Feels 30.6°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
60 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
40 5am
40
40
37 8am
40
28
28 11am
28
28
28 2pm
28
28
28 5pm
28
28
28 8pm
28
28
28 11pm
28
28
28 2am
28
40
Station readings
33
38
53
CAMS model adj -26
66
66
66
66
66
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
66
AD 728×90

Air Quality Index Trend

47h · 1 stn

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

48.7%
Humidity
38.6 km/h
Wind SW
1016.4 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
37
8.9 µg/m³
PM10▲
44
48.05 µg/m³
050100150200300500

What is the weather forecast for Stevenson Ranch?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.58.9 µg/m³ ✓ WHO
Good
PM1048.05 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (60 stations within 25 km)
8.9
Median
8.53
Average
3.1
Low
15.65
High
PM2.5 µg/m³ · Model: 19.2 · Bias: +10.3

What is the 7-day forecast for Stevenson Ranch?

09-05
31.0° 20.2°
09-06
36.5° 19.1°
09-07
35.8° 19.3°
09-08
35.5° 13.9°
09-09
33.9° 17.2°
09-10
33.2° 12.9°
09-11
40.2° 19.4°
Both models agree Avg diff: 5.0°C

Where are air quality stations near Stevenson Ranch?

43
Santa Clarita-Placerita, Los Angeles
4.2 km PM2.5: 10.3 µg/m³
34
Porter Ranch Cmty Sch (2303)
10.8 km PM2.5: 8.2 µg/m³
30
Castlebay Ln ES (2881)
11.0 km PM2.5: 7.1 µg/m³
31
Van Gogh ES (7422)
11.4 km PM2.5: 7.4 µg/m³
36
Herrick Ave ES (4515)
13.1 km PM2.5: 8.6 µg/m³
40
Rinaldi Adult Center (9365)
13.6 km PM2.5: 9.7 µg/m³
37
Knollwood ES (4762)
13.9 km PM2.5: 8.9 µg/m³
53
DA GOAT
14.1 km 18.3°C 89.0% RH PM2.5: 13.0 µg/m³
22
Sylmar Public Library - Inside
14.5 km PM2.5: 5.3 µg/m³
34
Sylmar Public Library - Outside
14.6 km PM2.5: 8.1 µg/m³

What cities are near Stevenson Ranch?

40 Santa Clarita 36 Valencia 36 Canyon Country 35 Castaic 32 Sylmar 34 Chatsworth 36 San Fernando 36 Northridge 40 North Hills 34 Winnetka
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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 2026-09-05T15:52 UTC.