Air Quality in Sylmar, United States

Clear
28.4°C · 48.7% humidity
28.4°
Feels 30.6°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
89 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
40 5am
40
40
32 8am
34
24
25 11am
26
26
27 2pm
27
27
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

Sylmar'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
32
7.85 µg/m³
PM10▲
38
41.2 µg/m³
050100150200300500

What is the weather forecast for Sylmar?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.57.85 µg/m³ ✓ WHO
Good
PM1041.2 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (89 stations within 25 km)
7.85
Median
8.85
Average
3.1
Low
17.57
High
PM2.5 µg/m³ · Model: 16.35 · Bias: +8.5

What is the 7-day forecast for Sylmar?

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 Sylmar?

34
Sylmar Public Library - Outside
0.1 km PM2.5: 8.1 µg/m³
22
Sylmar Public Library - Inside
0.3 km PM2.5: 5.3 µg/m³
40
Dyer ES (3493)
0.9 km PM2.5: 9.6 µg/m³
36
Herrick Ave ES (4515)
1.6 km PM2.5: 8.6 µg/m³
36
Gridley ES (4295)
1.9 km PM2.5: 8.6 µg/m³
32
Harding ES (4431)
3.0 km PM2.5: 7.8 µg/m³
36
San Fernando MS (8358)
3.1 km PM2.5: 8.6 µg/m³
42
North Valley Occupational Ctr (9329)
3.5 km PM2.5: 10.1 µg/m³
42
Danube ES (3335)
4.4 km PM2.5: 10.0 µg/m³
37
Knollwood ES (4762)
4.7 km PM2.5: 8.9 µg/m³

What cities are near Sylmar?

36 San Fernando 40 North Hills 36 Northridge 40 Santa Clarita 36 Canyon Country 29 Van Nuys 38 Valley Glen 20 Sunland 29 Reseda 37 Stevenson Ranch
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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 2026-09-05T15:50 UTC.