Hourly Weather | Today Tuesday, September 1, 2026
Nashua, New Hampshire
12 PM
Rainy Weather
70°
Feels Like 66°
76
Humidity: 84%
UV Index: 1
Wind: 7 mph
1 PM
Rainy Weather
68°
Feels Like 66°
72
Humidity: 87%
UV Index: 2
Wind: 7 mph
2 PM
Rainy Weather
66°
Feels Like 64°
71
Humidity: 87%
UV Index: 1
Wind: 7 mph
3 PM
Rainy Weather
66°
Feels Like 64°
71
Humidity: 86%
UV Index: 1
Wind: 8 mph
4 PM
Rainy Weather
66°
Feels Like 63°
71
Humidity: 85%
UV Index: 1
Wind: 8 mph
5 PM
Cloudy Weather
66°
Feels Like 64°
49
Humidity: 85%
UV Index: 1
Wind: 8 mph
6 PM
Cloudy Weather
66°
Feels Like 64°
49
Humidity: 85%
UV Index: 0
Wind: 8 mph
7 PM
Rainy Weather
64°
Feels Like 61°
55
Humidity: 85%
UV Index: 0
Wind: 7 mph
8 PM
Rainy Weather
63°
Feels Like 59°
52
Humidity: 95%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Weather
63°
Feels Like 63°
49
Humidity: 96%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Weather
63°
Feels Like 63°
49
Humidity: 95%
UV Index: 0
Wind: 5 mph
11 PM
Rainy Weather
63°
Feels Like 57°
52
Humidity: 96%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 6.64 µg/m³
  • PM10: 7.28 µg/m³
  • O3: 0.031 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.

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

Pollutant Concentrations:

  • PM2.5: 6.75 µg/m³
  • PM10: 7.35 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.4 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.74 µg/m³
  • PM10: 7.27 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.68 µg/m³
  • PM10: 7.15 µg/m³
  • O3: 0.032 ppm
  • NO2: 3.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 6.42 µg/m³
  • PM10: 6.84 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.74 µg/m³
  • PM10: 6.09 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.72 µg/m³
  • PM10: 4.98 µg/m³
  • O3: 0.031 ppm
  • NO2: 3.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.84 µg/m³
  • PM10: 4.06 µg/m³
  • O3: 0.031 ppm
  • NO2: 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.

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

Pollutant Concentrations:

  • PM2.5: 3.17 µg/m³
  • PM10: 3.41 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.77 µg/m³
  • PM10: 3.09 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.65 µg/m³
  • PM10: 3.09 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 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: 2.63 µg/m³
  • PM10: 3.15 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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