Air Quality in Hillsboro, United States

Clear
23.9°C · 42.1% humidity
23.9°
Feels 23.9°
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
7 stations

Nearby Monitoring Stations

AQI Forecast
34 5am
54
54
19 8am
29
36
21 11am
18
20
20 2pm
22
23
23 5pm
24
26
26 8pm
34
34
54 11pm
54
54
54 2am
54
54
AD 728×90

Air Quality Index Trend

45h · 25 stn

Hillsboro's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

42.1%
Humidity
11.1 km/h
Wind NE
1017.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
19
4.61 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

45h · 25 stations
PM2.54.61 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
4.61
Median
5.09
Average
2.8
Low
8.2
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +5.1
09-05
25.6° 11.3°
09-06
27.0° 14.9°
09-07
28.3° 8.5°
7.0 mm
09-08
27.4° 13.2°
09-09
29.6° 11.6°
09-10
35.0° 10.6°
09-11
27.1° 11.2°
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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 2026-09-05T15:53 UTC.