Hourly Weather | Today › Thursday, October 29, 2026
Hillsboro, Oregon
3 PM
Rainy Weather
55°
Feels Like 52°
72
Humidity: 65%
UV Index: 1
Wind: 5 mph
4 PM
Cloudy Weather
55°
Feels Like 57°
49
Humidity: 61%
UV Index: 1
Wind: 5 mph
5 PM
Cloudy Weather
54°
Feels Like 55°
44
Humidity: 65%
UV Index: 1
Wind: 4 mph
6 PM
Cloudy Weather
52°
Feels Like 52°
48
Humidity: 74%
UV Index: 0
Wind: 4 mph
7 PM
Rainy Night
48°
Feels Like 46°
52
Humidity: 83%
UV Index: 0
Wind: 2 mph
8 PM
Cloudy Weather
46°
Feels Like 48°
25
Humidity: 93%
UV Index: 0
Wind: 2 mph
9 PM
Cloudy Night
45°
Feels Like 46°
20
Humidity: 95%
UV Index: 0
Wind: 2 mph
10 PM
Cloudy Night
45°
Feels Like 46°
20
Humidity: 96%
UV Index: 0
Wind: 2 mph
11 PM
Cloudy Weather
45°
Feels Like 45°
20
Humidity: 97%
UV Index: 0
Wind: 2 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 PM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.63 µg/m³
  • PM10: 0.89 µg/m³
  • O3: 0.032 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.62 µg/m³
  • PM10: 0.82 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.6 µg/m³
  • PM10: 0.78 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.62 µg/m³
  • PM10: 0.85 µg/m³
  • O3: 0.028 ppm
  • NO2: 1.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
19 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.67 µg/m³
  • PM10: 1 µg/m³
  • O3: 0.021 ppm
  • NO2: 2.3 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
16 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.72 µg/m³
  • PM10: 1.16 µg/m³
  • O3: 0.017 ppm
  • NO2: 2.9 ppb
  • SO2: 0 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
14 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.78 µg/m³
  • PM10: 1.32 µg/m³
  • O3: 0.015 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
12 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.85 µg/m³
  • PM10: 1.41 µg/m³
  • O3: 0.013 ppm
  • NO2: 3.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
11 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.03 µg/m³
  • PM10: 1.59 µg/m³
  • O3: 0.011 ppm
  • NO2: 3.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.