Hourly Weather | Today Wednesday, March 18, 2026
Tacoma, Washington
3 AM
Rainy Weather
52°
Feels Like 46°
68
Humidity: 90%
UV Index: 0
Wind: 7 mph
4 AM
Rainy Weather
52°
Feels Like 45°
75
Humidity: 91%
UV Index: 0
Wind: 8 mph
5 AM
Rainy Weather
52°
Feels Like 45°
78
Humidity: 91%
UV Index: 0
Wind: 8 mph
6 AM
Rainy Weather
52°
Feels Like 45°
78
Humidity: 93%
UV Index: 0
Wind: 8 mph
7 AM
Rainy Weather
52°
Feels Like 45°
78
Humidity: 92%
UV Index: 0
Wind: 9 mph
8 AM
Cloudy Weather
52°
Feels Like 46°
49
Humidity: 96%
UV Index: 0
Wind: 9 mph
9 AM
Rainy Weather
54°
Feels Like 46°
61
Humidity: 92%
UV Index: 0
Wind: 9 mph
10 AM
Rainy Weather
54°
Feels Like 48°
61
Humidity: 91%
UV Index: 1
Wind: 9 mph
11 AM
Rainy Weather
55°
Feels Like 48°
59
Humidity: 90%
UV Index: 1
Wind: 9 mph
12 PM
Rainy Weather
55°
Feels Like 50°
59
Humidity: 88%
UV Index: 1
Wind: 9 mph
1 PM
Cloudy Weather
55°
Feels Like 54°
49
Humidity: 86%
UV Index: 1
Wind: 8 mph
2 PM
Cloudy Weather
57°
Feels Like 55°
49
Humidity: 85%
UV Index: 1
Wind: 7 mph
3 PM
Rainy Weather
57°
Feels Like 54°
61
Humidity: 83%
UV Index: 1
Wind: 7 mph
4 PM
Rainy Weather
57°
Feels Like 54°
61
Humidity: 81%
UV Index: 1
Wind: 7 mph
5 PM
Rainy Weather
57°
Feels Like 54°
59
Humidity: 78%
UV Index: 0
Wind: 7 mph
6 PM
Rainy Weather
57°
Feels Like 52°
59
Humidity: 82%
UV Index: 0
Wind: 6 mph
7 PM
Cloudy Weather
55°
Feels Like 54°
49
Humidity: 85%
UV Index: 0
Wind: 6 mph
8 PM
Rainy Weather
55°
Feels Like 52°
51
Humidity: 86%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Weather
54°
Feels Like 52°
47
Humidity: 88%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
54°
Feels Like 50°
43
Humidity: 88%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Weather
54°
Feels Like 50°
47
Humidity: 85%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.4 µg/m³
  • PM10: 4.98 µg/m³
  • O3: 0.025 ppm
  • NO2: 4.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.33 µg/m³
  • PM10: 4.89 µg/m³
  • O3: 0.026 ppm
  • NO2: 3.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

5 AM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.29 µg/m³
  • PM10: 4.85 µg/m³
  • O3: 0.026 ppm
  • NO2: 3.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.21 µg/m³
  • PM10: 4.72 µg/m³
  • O3: 0.026 ppm
  • NO2: 3.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.07 µg/m³
  • PM10: 4.52 µg/m³
  • O3: 0.026 ppm
  • NO2: 3 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.9 µg/m³
  • PM10: 4.32 µg/m³
  • O3: 0.026 ppm
  • NO2: 3.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.68 µg/m³
  • PM10: 3.93 µg/m³
  • O3: 0.026 ppm
  • NO2: 3.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.48 µg/m³
  • PM10: 3.55 µg/m³
  • O3: 0.025 ppm
  • NO2: 3.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.24 µg/m³
  • PM10: 3.18 µg/m³
  • O3: 0.025 ppm
  • NO2: 3.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.95 µg/m³
  • PM10: 2.78 µg/m³
  • O3: 0.027 ppm
  • NO2: 2.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.84 µg/m³
  • PM10: 2.67 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.8 µg/m³
  • PM10: 2.65 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 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: 1.95 µg/m³
  • PM10: 2.95 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.17 µg/m³
  • PM10: 3.45 µg/m³
  • O3: 0.024 ppm
  • NO2: 2.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 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: 2.3 µg/m³
  • PM10: 3.82 µg/m³
  • O3: 0.023 ppm
  • NO2: 3.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.44 µg/m³
  • PM10: 4.18 µg/m³
  • O3: 0.023 ppm
  • NO2: 4.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 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: 2.59 µg/m³
  • PM10: 4.5 µg/m³
  • O3: 0.020 ppm
  • NO2: 5.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.73 µg/m³
  • PM10: 4.79 µg/m³
  • O3: 0.018 ppm
  • NO2: 5.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.82 µg/m³
  • PM10: 4.91 µg/m³
  • O3: 0.016 ppm
  • NO2: 5.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 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: 2.92 µg/m³
  • PM10: 4.96 µg/m³
  • O3: 0.016 ppm
  • NO2: 5.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 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: 3.03 µg/m³
  • PM10: 5.02 µg/m³
  • O3: 0.015 ppm
  • NO2: 4.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.18 ppm

Health Recommendations:

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