Hourly Weather | Today Tuesday, September 1, 2026
Redmond, Washington
9 AM
Cloudy Weather
61°
Feels Like 61°
0
Humidity: 82%
UV Index: 1
Wind: 7 mph
10 AM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 76%
UV Index: 1
Wind: 7 mph
11 AM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 70%
UV Index: 2
Wind: 8 mph
12 PM
Cloudy Weather
68°
Feels Like 68°
0
Humidity: 66%
UV Index: 2
Wind: 8 mph
1 PM
Cloudy Weather
70°
Feels Like 70°
0
Humidity: 62%
UV Index: 2
Wind: 8 mph
2 PM
Cloudy Weather
72°
Feels Like 75°
2
Humidity: 59%
UV Index: 5
Wind: 8 mph
3 PM
Cloudy Weather
73°
Feels Like 75°
2
Humidity: 57%
UV Index: 4
Wind: 8 mph
4 PM
Cloudy Weather
73°
Feels Like 75°
2
Humidity: 53%
UV Index: 3
Wind: 9 mph
5 PM
Cloudy Weather
73°
Feels Like 72°
2
Humidity: 54%
UV Index: 2
Wind: 9 mph
6 PM
Cloudy Weather
72°
Feels Like 72°
2
Humidity: 56%
UV Index: 1
Wind: 9 mph
7 PM
Cloudy Weather
70°
Feels Like 66°
3
Humidity: 60%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Weather
68°
Feels Like 64°
4
Humidity: 62%
UV Index: 0
Wind: 7 mph
9 PM
Cloudy Weather
64°
Feels Like 63°
4
Humidity: 68%
UV Index: 0
Wind: 7 mph
10 PM
Cloudy Weather
63°
Feels Like 63°
4
Humidity: 73%
UV Index: 0
Wind: 7 mph
11 PM
Cloudy Weather
63°
Feels Like 61°
4
Humidity: 75%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 4.08 µg/m³
  • PM10: 6.39 µg/m³
  • O3: 0.017 ppm
  • NO2: 2.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.47 µg/m³
  • PM10: 5.65 µg/m³
  • O3: 0.018 ppm
  • NO2: 2.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.87 µg/m³
  • PM10: 4.88 µg/m³
  • O3: 0.019 ppm
  • NO2: 2.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.19 µg/m³
  • PM10: 3.72 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.9 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.79 µg/m³
  • PM10: 2.91 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.51 µg/m³
  • PM10: 2.38 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.3 µg/m³
  • PM10: 1.98 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 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: 1.16 µg/m³
  • PM10: 1.74 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.09 µg/m³
  • PM10: 1.6 µg/m³
  • O3: 0.026 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.07 µg/m³
  • PM10: 1.59 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.13 µg/m³
  • PM10: 1.71 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.17 µg/m³
  • PM10: 1.82 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.21 µg/m³
  • PM10: 1.94 µg/m³
  • O3: 0.022 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.28 µg/m³
  • PM10: 2.13 µg/m³
  • O3: 0.019 ppm
  • NO2: 1.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.33 µg/m³
  • PM10: 2.28 µg/m³
  • O3: 0.016 ppm
  • NO2: 1.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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