Hourly Weather | Today › Wednesday, October 28, 2026
Sammamish, Washington
1 PM
Rainy Weather
52°
Feels Like 46°
61
Humidity: 80%
UV Index: 1
Wind: 8 mph
2 PM
Cloudy Weather
52°
Feels Like 48°
49
Humidity: 78%
UV Index: 1
Wind: 8 mph
3 PM
Cloudy Weather
54°
Feels Like 50°
49
Humidity: 75%
UV Index: 1
Wind: 8 mph
4 PM
Rainy Weather
52°
Feels Like 45°
66
Humidity: 79%
UV Index: 0
Wind: 8 mph
5 PM
Cloudy Weather
52°
Feels Like 48°
49
Humidity: 79%
UV Index: 0
Wind: 7 mph
6 PM
Rainy Weather
48°
Feels Like 43°
66
Humidity: 86%
UV Index: 0
Wind: 7 mph
7 PM
Cloudy Night
48°
Feels Like 45°
49
Humidity: 83%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
45°
Feels Like 43°
44
Humidity: 90%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Weather
45°
Feels Like 41°
48
Humidity: 92%
UV Index: 0
Wind: 6 mph
10 PM
Rainy Weather
45°
Feels Like 37°
52
Humidity: 91%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Weather
43°
Feels Like 39°
44
Humidity: 92%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.51 µg/m³
  • PM10: 0.86 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.8 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.79 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 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: 0.5 µg/m³
  • PM10: 0.83 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 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: 0.5 µg/m³
  • PM10: 0.85 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.51 µg/m³
  • PM10: 0.92 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.53 µg/m³
  • PM10: 1.05 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.6 µg/m³
  • PM10: 1.16 µg/m³
  • O3: 0.033 ppm
  • NO2: 2.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.64 µg/m³
  • PM10: 1.24 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.4 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
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.68 µg/m³
  • PM10: 1.31 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.4 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
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.71 µg/m³
  • PM10: 1.36 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

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