Air Quality in Hornsby, Australia
Windy
27.8°C · 21.1% humidity
27.8°
Feels 27.8°
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
49
12am
30
26
32
3am
38
38
38
6am
38
38
38
9am
38
38
38
12pm
25
13
13
3pm
13
13
13
6pm
13
13
25
9pm
25
25
Station readings
49
30
26
32
CAMS model
adj -12
50
50
50
50
50
50
50
50
50
50
50
50
50
37
25
25
25
25
25
25
25
37
37
37
PM2.5 Trend (24h)
26h · 1 station21.1%
Humidity
43.0 km/h
Wind ENE
1013.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
What is the weather forecast for Hornsby?
Temperature & Precipitation
PM2.55.53 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (3 stations within 25 km)
5.53
Median
6.26
Average
5.25
Low
8.0
High
PM2.5 µg/m³ · Model: 17.65 · Bias: +12.1
What is the 7-day forecast for Hornsby?
04-10
27.8° 15.4°
04-11
27.2° 11.6°
0.13 mm
04-12
22.3° 9.1°
04-13
24.2° 10.3°
04-14
26.7° 11.7°
04-15
18.1° 11.8°
0.56 mm
04-16
20.2° 11.3°
1.31 mm
Both models agree
Avg diff: 3.2°C
Where are air quality stations near Hornsby?
25
Macquarie Park Sydney East
58
Macquarie Park Sydney East
34
Macquarie Park Sydney East
40
Macquarie Park Sydney East
38
Macquarie Park Sydney East
22
Macquarie Park Sydney East
41
Macquarie Park Sydney East
12
Macquarie Park Sydney East
33
Macquarie Park Sydney East
27
Macquarie Park Sydney East
What cities are near Hornsby?
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T03:58 UTC.