Air Quality in Sylmar, United States

Drizzle
15.1°C · 60.7% humidity
15.1°
Feels 15.1°
49
Good
Air quality is satisfactory. Enjoy outdoor activities.
84 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
51 9pm
45
29
22 12am
22
9
22 3am
22
47
47 6am
47
47
47 9am
47
47
47 12pm
47
47
47 3pm
22
22
47 6pm
47
47
Station readings
51
45
29
CAMS model adj -28
75
75
75
50
50
37
50
50
75
75
75
75
75
75
75
75
75
75
75
50
50
75
75
75
AD 728×90

PM2.5 Trend (24h)

32h · 3 stations
60.7%
Humidity
66.3 km/h
Wind SW
1010.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Sylmar?

Temperature & Precipitation

PM2.511.68 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (84 stations within 25 km)
11.68
Median
11.57
Average
3.18
Low
19.27
High
PM2.5 µg/m³ · Model: 17.65 · Bias: +6.0

What is the 7-day forecast for Sylmar?

04-09
22.0° 11.8°
0.13 mm
04-10
15.1° 10.8°
6.5 mm
04-11
14.8° 8.3°
17.37 mm
04-12
12.9° 7.3°
0.5 mm
04-13
13.1° 5.8°
0.13 mm
04-14
19.1° 7.7°
04-15
22.1° 12.4°
Both models agree Avg diff: 2.3°C

Where are air quality stations near Sylmar?

46
Sylmar Public Library - Outside
0.1 km PM2.5: 11.1 µg/m³
26
Sylmar Public Library - Inside
0.3 km PM2.5: 6.3 µg/m³
55
Dyer ES (3493)
0.9 km PM2.5: 13.9 µg/m³
55
Herrick Ave ES (4515)
1.6 km PM2.5: 13.9 µg/m³
54
Gridley ES (4295)
1.9 km PM2.5: 13.6 µg/m³
58
Harding ES (4431)
3.0 km PM2.5: 15.3 µg/m³
49
San Fernando MS (8358)
3.1 km PM2.5: 11.7 µg/m³
54
North Valley Occupational Ctr (9329)
3.5 km PM2.5: 13.7 µg/m³
53
Danube ES (3335)
4.4 km PM2.5: 13.1 µg/m³
49
Knollwood ES (4762)
4.7 km PM2.5: 11.8 µg/m³

What cities are near Sylmar?

50 San Fernando 52 North Hills 52 Northridge 45 Santa Clarita 49 Canyon Country 50 Van Nuys 50 Valley Glen 51 Sunland 51 Reseda 43 Stevenson Ranch

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T00:02 UTC.