Air Quality in Hillsboro, United States

Clear
18.2°C · 32.4% humidity
18.2°
Feels 18.2°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
23 7pm
15
14
14 10pm
8
8
8 1am
20
33
58 4am
58
58
58 7am
33
33
33 10am
33
33
33 1pm
33
33
33 4pm
20
8
Station readings
23
15
14
14
13
CAMS model adj -17
37
37
37
25
25
25
25
37
50
75
75
75
75
50
50
50
50
50
50
50
50
50
37
25
AD 728×90

PM2.5 Trend (24h)

29h · 2 stations
32.4%
Humidity
34.2 km/h
Wind NNE
1013.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Hillsboro?

Temperature & Precipitation

PM2.53.3 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (4 stations within 25 km)
3.3
Median
3.99
Average
2.6
Low
6.75
High
PM2.5 µg/m³ · Model: 7.4 · Bias: +4.1

What is the 7-day forecast for Hillsboro?

04-09
15.9° 4.1°
04-10
18.2° 4.6°
04-11
12.6° 3.8°
0.44 mm
04-12
9.8° 5.4°
7.44 mm
04-13
10.1° 4.5°
1.31 mm
04-14
13.7° 4.7°
0.31 mm
04-15
14.4° 2.7°
0.13 mm
Both models agree Avg diff: 2.4°C

Where are air quality stations near Hillsboro?

42
Hillsboro, Oregon, USA
1.5 km
28
NE Grant St Collocation
1.5 km PM2.5: 6.6 µg/m³
11
Forest Grove Pacific University
9.0 km PM2.5: 2.6 µg/m³
13
Beaverton, Oregon, USA
14.8 km
11
Portland Roosevelt High School
21.0 km PM2.5: 2.6 µg/m³
15
Portland Lincoln High School
23.5 km PM2.5: 3.7 µg/m³
40
Tualatin I-5 Roadway, Oregon, USA
23.5 km

What cities are near Hillsboro?

20 Forest Grove 12 Aloha 12 Bethany 12 Beaverton 13 Tigard 12 Sherwood 14 Tualatin 10 Newberg 13 Lake Oswego 13 Vancouver

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T22:48 UTC.