Hourly Weather | Today Monday, September 21, 2026
Concord, New Hampshire
3 PM
Cloudy Weather
68°
Feels Like 70°
0
Humidity: 46%
UV Index: 3
Wind: 9 mph
4 PM
Cloudy Weather
68°
Feels Like 70°
0
Humidity: 47%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 52%
UV Index: 2
Wind: 7 mph
6 PM
Sunny Weather
64°
Feels Like 64°
0
Humidity: 56%
UV Index: 1
Wind: 6 mph
7 PM
Night
61°
Feels Like 61°
0
Humidity: 64%
UV Index: 0
Wind: 4 mph
8 PM
Cloudy Night
59°
Feels Like 59°
0
Humidity: 65%
UV Index: 0
Wind: 4 mph
9 PM
Night
57°
Feels Like 57°
0
Humidity: 72%
UV Index: 0
Wind: 4 mph
10 PM
Night
55°
Feels Like 55°
0
Humidity: 76%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 77%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.01 µg/m³
  • PM10: 3.33 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.8 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 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.86 µg/m³
  • PM10: 3.17 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.9 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 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.66 µg/m³
  • PM10: 2.98 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.16 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: 2.49 µg/m³
  • PM10: 2.83 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.44 µg/m³
  • PM10: 2.86 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.9 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
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.41 µg/m³
  • PM10: 2.92 µg/m³
  • O3: 0.033 ppm
  • NO2: 3.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.35 µg/m³
  • PM10: 2.95 µg/m³
  • O3: 0.030 ppm
  • NO2: 3.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.31 µg/m³
  • PM10: 3 µg/m³
  • O3: 0.027 ppm
  • NO2: 4 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.23 µg/m³
  • PM10: 2.96 µg/m³
  • O3: 0.025 ppm
  • NO2: 4.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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