Air Quality in Stevenson Ranch, United States

Windy
33.7°C · 23.5% humidity
33.7°
Feels 33.7°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
56 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
25 12pm
25
25
32 3pm
30
29
28 6pm
27
26
26 9pm
26
25
25 12am
25
25
25 3am
37
37
37 6am
37
37
37 9am
25
25
Station readings
33
25
12
12
CAMS model adj -29
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
66
66
66
66
66
66
54
54
AD 728×90

Air Quality Index Trend

48h · 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.

23.5%
Humidity
78.4 km/h
Wind SW
1005.5 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
32
7.8 µg/m³
PM10▲
38
41.2 µg/m³
050100150200300500

What is the weather forecast for Stevenson Ranch?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.57.8 µg/m³ ✓ WHO
Good
PM1041.2 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (56 stations within 25 km)
7.8
Median
7.94
Average
2.96
Low
14.23
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +8.6

What is the 7-day forecast for Stevenson Ranch?

07-21
30.9° 24.4°
07-22
33.7° 21.2°
07-23
32.0° 20.3°
1.81 mm
07-24
36.1° 20.8°
0.19 mm
07-25
33.3° 23.5°
07-26
37.4° 19.1°
07-27
37.5° 21.9°
Both models agree Avg diff: 3.2°C

Where are air quality stations near Stevenson Ranch?

72
Santa Clarita-Placerita, Los Angeles
4.2 km PM2.5: 22.1 µg/m³
77
Santa Clarita-Placerita, Los Angeles
4.2 km PM2.5: 24.5 µg/m³
60
Santa Clarita-Placerita, Los Angeles
4.2 km PM2.5: 16.4 µg/m³
65
Santa Clarita-Placerita, Los Angeles
4.2 km PM2.5: 18.8 µg/m³
25
Santa Clarita-Placerita, Los Angeles
4.2 km PM2.5: 6.0 µg/m³
25
Porter Ranch Cmty Sch (2303)
10.8 km PM2.5: 5.9 µg/m³
29
Castlebay Ln ES (2881)
11.0 km PM2.5: 6.9 µg/m³
32
Van Gogh ES (7422)
11.4 km PM2.5: 7.8 µg/m³
37
Herrick Ave ES (4515)
13.1 km PM2.5: 8.9 µg/m³
33
Rinaldi Adult Center (9365)
13.6 km PM2.5: 7.9 µg/m³

What cities are near Stevenson Ranch?

33 Santa Clarita 32 Valencia 34 Canyon Country 32 Castaic 34 Sylmar 26 Chatsworth 35 San Fernando 34 Northridge 37 North Hills 31 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 2026-07-21T22:51 UTC.