Hourly Weather | Today Sunday, December 14, 2025
Hillsboro, Oregon
1 PM
Rainy Weather
50°
Feels Like 50°
40
Humidity: 89%
Wind: 4 mph
UV Index: 0
2 PM
Cloudy Weather
50°
Feels Like 52°
37
Humidity: 88%
Wind: 4 mph
UV Index: 0
3 PM
Cloudy Weather
52°
Feels Like 54°
33
Humidity: 82%
Wind: 4 mph
UV Index: 0
4 PM
Cloudy Weather
52°
Feels Like 52°
32
Humidity: 86%
Wind: 4 mph
UV Index: 0
5 PM
Cloudy Weather
50°
Feels Like 52°
32
Humidity: 86%
Wind: 4 mph
UV Index: 0
6 PM
Cloudy Weather
48°
Feels Like 50°
32
Humidity: 86%
Wind: 4 mph
UV Index: 0
7 PM
Cloudy Weather
48°
Feels Like 48°
34
Humidity: 87%
Wind: 4 mph
UV Index: 0
8 PM
Cloudy Weather
48°
Feels Like 48°
34
Humidity: 86%
Wind: 4 mph
UV Index: 0
9 PM
Cloudy Weather
48°
Feels Like 48°
39
Humidity: 84%
Wind: 4 mph
UV Index: 0
10 PM
Cloudy Weather
48°
Feels Like 48°
49
Humidity: 87%
Wind: 4 mph
UV Index: 0
11 PM
Rainy Weather
48°
Feels Like 46°
60
Humidity: 84%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.47 µg/m³
  • PM10: 5.31 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.

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

Pollutant Concentrations:

  • PM2.5: 4.35 µg/m³
  • PM10: 5.15 µg/m³
  • O3: 0.032 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.18 µg/m³
  • PM10: 4.94 µg/m³
  • O3: 0.029 ppm
  • NO2: 1.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.96 µg/m³
  • PM10: 4.7 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.79 µg/m³
  • PM10: 4.53 µg/m³
  • O3: 0.024 ppm
  • NO2: 2.2 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.56 µg/m³
  • PM10: 4.25 µg/m³
  • O3: 0.024 ppm
  • NO2: 2.4 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.26 µg/m³
  • PM10: 3.87 µg/m³
  • O3: 0.026 ppm
  • NO2: 2 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
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.98 µg/m³
  • PM10: 3.53 µg/m³
  • O3: 0.029 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.82 µg/m³
  • PM10: 3.34 µg/m³
  • O3: 0.032 ppm
  • NO2: 1.1 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.76 µg/m³
  • PM10: 3.26 µg/m³
  • O3: 0.035 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.

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

Pollutant Concentrations:

  • PM2.5: 2.7 µg/m³
  • PM10: 3.13 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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