Hourly Weather | Today Wednesday, March 18, 2026
Vancouver, Washington
3 AM
Cloudy Weather
48°
Feels Like 46°
47
Humidity: 79%
UV Index: 0
Wind: 6 mph
4 AM
Rainy Weather
48°
Feels Like 45°
51
Humidity: 82%
UV Index: 0
Wind: 6 mph
5 AM
Rainy Weather
46°
Feels Like 43°
44
Humidity: 86%
UV Index: 0
Wind: 6 mph
6 AM
Cloudy Weather
46°
Feels Like 45°
40
Humidity: 87%
UV Index: 0
Wind: 6 mph
7 AM
Cloudy Weather
45°
Feels Like 43°
29
Humidity: 89%
UV Index: 0
Wind: 5 mph
8 AM
Cloudy Weather
48°
Feels Like 46°
13
Humidity: 93%
UV Index: 0
Wind: 6 mph
9 AM
Cloudy Weather
48°
Feels Like 48°
13
Humidity: 86%
UV Index: 1
Wind: 6 mph
10 AM
Cloudy Weather
52°
Feels Like 52°
13
Humidity: 80%
UV Index: 1
Wind: 6 mph
11 AM
Cloudy Weather
54°
Feels Like 55°
13
Humidity: 75%
UV Index: 2
Wind: 7 mph
12 PM
Cloudy Weather
57°
Feels Like 57°
13
Humidity: 67%
UV Index: 2
Wind: 7 mph
1 PM
Cloudy Weather
61°
Feels Like 61°
8
Humidity: 61%
UV Index: 2
Wind: 8 mph
2 PM
Cloudy Weather
63°
Feels Like 63°
0
Humidity: 56%
UV Index: 2
Wind: 8 mph
3 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 54%
UV Index: 2
Wind: 8 mph
4 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 53%
UV Index: 1
Wind: 8 mph
5 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 52%
UV Index: 1
Wind: 7 mph
6 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 56%
UV Index: 0
Wind: 7 mph
7 PM
Cloudy Weather
63°
Feels Like 61°
2
Humidity: 63%
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: 72%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Weather
55°
Feels Like 55°
7
Humidity: 76%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Weather
57°
Feels Like 55°
7
Humidity: 73%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
16 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.17 µg/m³
  • PM10: 3.59 µg/m³
  • O3: 0.017 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.

4 AM
16 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.07 µg/m³
  • PM10: 3.41 µg/m³
  • O3: 0.018 ppm
  • NO2: 1.4 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 AM
16 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.03 µg/m³
  • PM10: 3.3 µg/m³
  • O3: 0.018 ppm
  • NO2: 1.3 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 AM
16 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.01 µg/m³
  • PM10: 3.24 µg/m³
  • O3: 0.017 ppm
  • NO2: 1.3 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 AM
15 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.02 µg/m³
  • PM10: 3.25 µg/m³
  • O3: 0.016 ppm
  • NO2: 1.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

8 AM
14 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.08 µg/m³
  • PM10: 3.37 µg/m³
  • O3: 0.015 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

9 AM
13 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.14 µg/m³
  • PM10: 3.54 µg/m³
  • O3: 0.014 ppm
  • NO2: 2.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.18 µg/m³
  • PM10: 3.65 µg/m³
  • O3: 0.014 ppm
  • NO2: 2.2 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
15 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.19 µg/m³
  • PM10: 3.69 µg/m³
  • O3: 0.016 ppm
  • NO2: 1.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.58 µg/m³
  • PM10: 2.57 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.8 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: 1.6 µg/m³
  • PM10: 2.48 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.5 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: 1.76 µg/m³
  • PM10: 2.63 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.84 µg/m³
  • PM10: 2.71 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 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: 1.82 µg/m³
  • PM10: 2.69 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.74 µg/m³
  • PM10: 2.61 µg/m³
  • O3: 0.042 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
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.77 µg/m³
  • PM10: 2.74 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.9 µg/m³
  • PM10: 3.05 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.01 µg/m³
  • PM10: 3.35 µg/m³
  • O3: 0.025 ppm
  • NO2: 2.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.05 µg/m³
  • PM10: 3.51 µg/m³
  • O3: 0.022 ppm
  • NO2: 2.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.08 µg/m³
  • PM10: 3.59 µg/m³
  • O3: 0.020 ppm
  • NO2: 2.8 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 PM
17 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.08 µg/m³
  • PM10: 3.6 µg/m³
  • O3: 0.019 ppm
  • NO2: 2.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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