Air Quality in Sylmar, United States

Windy
21.0°C · 18.1% humidity
21.0°
Feels 21.0°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
87 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
36 7pm
36
36
37 10pm
36
36
36 1am
36
48
48 4am
48
48
48 7am
36
36
36 10am
36
36
36 1pm
36
36
36 4pm
36
36
Station readings
25
25
38
CAMS model adj -18
54
54
54
54
54
54
54
54
66
66
66
66
66
54
54
54
54
54
54
54
54
54
54
54
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.

18.1%
Humidity
40.2 km/h
Wind NE
1010.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
37
8.8 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Sylmar?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.58.8 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (87 stations within 25 km)
8.8
Median
9.07
Average
3.25
Low
14.95
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +1.2

What is the 7-day forecast for Sylmar?

06-09
32.3° 13.5°
06-10
32.1° 14.3°
06-11
30.5° 14.8°
06-12
31.6° 16.5°
06-13
34.9° 16.1°
06-14
30.4° 18.8°
06-15
26.2° 12.3°
Both models agree Avg diff: 4.3°C

Where are air quality stations near Sylmar?

39
Sylmar Public Library - Outside
0.1 km PM2.5: 9.3 µg/m³
25
Sylmar Public Library - Inside
0.3 km PM2.5: 6.0 µg/m³
43
Dyer ES (3493)
0.9 km PM2.5: 10.4 µg/m³
41
Herrick Ave ES (4515)
1.6 km PM2.5: 9.9 µg/m³
40
Gridley ES (4295)
1.9 km PM2.5: 9.5 µg/m³
47
Harding ES (4431)
3.0 km PM2.5: 11.3 µg/m³
38
San Fernando MS (8358)
3.1 km PM2.5: 9.2 µg/m³
42
North Valley Occupational Ctr (9329)
3.5 km PM2.5: 10.1 µg/m³
41
Danube ES (3335)
4.4 km PM2.5: 9.9 µg/m³
41
Knollwood ES (4762)
4.7 km PM2.5: 9.9 µg/m³

What cities are near Sylmar?

38 San Fernando 40 North Hills 37 Northridge 25 Santa Clarita 35 Canyon Country 36 Van Nuys 39 Valley Glen 28 Sunland 36 Reseda 33 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 2026-06-09T05:11 UTC.