Hourly Weather | Today Wednesday, March 18, 2026
Tigard, Oregon
6 AM
Cloudy Weather
45°
Feels Like 43°
38
Humidity: 94%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
43°
Feels Like 43°
26
Humidity: 89%
UV Index: 0
Wind: 4 mph
8 AM
Cloudy Weather
46°
Feels Like 45°
12
Humidity: 90%
UV Index: 0
Wind: 6 mph
9 AM
Cloudy Weather
48°
Feels Like 46°
12
Humidity: 86%
UV Index: 1
Wind: 6 mph
10 AM
Cloudy Weather
52°
Feels Like 50°
12
Humidity: 80%
UV Index: 1
Wind: 7 mph
11 AM
Cloudy Weather
55°
Feels Like 55°
8
Humidity: 71%
UV Index: 2
Wind: 7 mph
12 PM
Cloudy Weather
59°
Feels Like 59°
8
Humidity: 63%
UV Index: 2
Wind: 8 mph
1 PM
Cloudy Weather
63°
Feels Like 63°
5
Humidity: 57%
UV Index: 2
Wind: 9 mph
2 PM
Cloudy Weather
64°
Feels Like 66°
0
Humidity: 54%
UV Index: 2
Wind: 9 mph
3 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 52%
UV Index: 2
Wind: 8 mph
4 PM
Cloudy Weather
68°
Feels Like 66°
0
Humidity: 51%
UV Index: 1
Wind: 8 mph
5 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 55%
UV Index: 1
Wind: 7 mph
6 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 57%
UV Index: 0
Wind: 7 mph
7 PM
Cloudy Weather
64°
Feels Like 63°
1
Humidity: 62%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
61°
Feels Like 61°
7
Humidity: 66%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Weather
59°
Feels Like 57°
7
Humidity: 71%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Weather
57°
Feels Like 54°
7
Humidity: 74%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Weather
55°
Feels Like 54°
7
Humidity: 72%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

6 AM
11 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.21 µg/m³
  • PM10: 3.55 µg/m³
  • O3: 0.012 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

7 AM
10 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.22 µg/m³
  • PM10: 3.56 µg/m³
  • O3: 0.011 ppm
  • NO2: 1.5 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

8 AM
10 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.28 µg/m³
  • PM10: 3.69 µg/m³
  • O3: 0.010 ppm
  • NO2: 1.9 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 AM
10 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.35 µg/m³
  • PM10: 3.85 µg/m³
  • O3: 0.009 ppm
  • NO2: 2.4 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

10 AM
10 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.4 µg/m³
  • PM10: 3.98 µg/m³
  • O3: 0.009 ppm
  • NO2: 2.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

11 AM
10 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 2.45 µg/m³
  • PM10: 4.08 µg/m³
  • O3: 0.011 ppm
  • NO2: 2 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.81 µg/m³
  • PM10: 2.9 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.84 µg/m³
  • PM10: 2.81 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.99 µg/m³
  • PM10: 2.91 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.01 µg/m³
  • PM10: 2.93 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.95 µg/m³
  • PM10: 2.85 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.82 µg/m³
  • PM10: 2.69 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.82 µg/m³
  • PM10: 2.79 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.96 µg/m³
  • PM10: 3.12 µg/m³
  • O3: 0.027 ppm
  • NO2: 2.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.09 µg/m³
  • PM10: 3.46 µg/m³
  • O3: 0.022 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.15 µg/m³
  • PM10: 3.65 µg/m³
  • O3: 0.018 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.

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

Pollutant Concentrations:

  • PM2.5: 2.18 µg/m³
  • PM10: 3.74 µg/m³
  • O3: 0.016 ppm
  • NO2: 3.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.2 µg/m³
  • PM10: 3.74 µg/m³
  • O3: 0.015 ppm
  • NO2: 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.