Hourly Weather | Today Wednesday, August 12, 2026
Nashua, New Hampshire
9 AM
Sunny Weather
73°
Feels Like 77°
0
Humidity: 60%
UV Index: 3
Wind: 6 mph
10 AM
Sunny Weather
79°
Feels Like 82°
0
Humidity: 51%
UV Index: 4
Wind: 6 mph
11 AM
Sunny Weather
81°
Feels Like 86°
0
Humidity: 45%
UV Index: 6
Wind: 6 mph
12 PM
Cloudy Weather
82°
Feels Like 90°
0
Humidity: 42%
UV Index: 7
Wind: 6 mph
1 PM
Cloudy Weather
84°
Feels Like 91°
0
Humidity: 40%
UV Index: 8
Wind: 6 mph
2 PM
Cloudy Weather
84°
Feels Like 91°
0
Humidity: 39%
UV Index: 7
Wind: 6 mph
3 PM
Cloudy Weather
84°
Feels Like 90°
0
Humidity: 38%
UV Index: 6
Wind: 6 mph
4 PM
Cloudy Weather
84°
Feels Like 88°
0
Humidity: 39%
UV Index: 4
Wind: 7 mph
5 PM
Cloudy Weather
82°
Feels Like 84°
0
Humidity: 41%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
81°
Feels Like 82°
0
Humidity: 44%
UV Index: 2
Wind: 6 mph
7 PM
Cloudy Weather
79°
Feels Like 79°
0
Humidity: 49%
UV Index: 1
Wind: 6 mph
8 PM
Cloudy Night
77°
Feels Like 75°
47
Humidity: 54%
UV Index: 0
Wind: 5 mph
9 PM
Stormy Weather
73°
Feels Like 70°
51
Humidity: 63%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Night
72°
Feels Like 70°
47
Humidity: 71%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
68°
Feels Like 66°
15
Humidity: 78%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 2.51 µg/m³
  • PM10: 2.93 µg/m³
  • O3: 0.015 ppm
  • NO2: 3 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.6 µg/m³
  • PM10: 3.04 µg/m³
  • O3: 0.018 ppm
  • NO2: 2.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.09 µg/m³
  • PM10: 3.52 µg/m³
  • O3: 0.024 ppm
  • NO2: 2.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.51 µg/m³
  • PM10: 2.7 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.12 µg/m³
  • PM10: 2.24 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.89 µg/m³
  • PM10: 1.99 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.71 µg/m³
  • PM10: 1.81 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.74 µg/m³
  • PM10: 1.86 µg/m³
  • O3: 0.041 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 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: 1.82 µg/m³
  • PM10: 1.96 µg/m³
  • O3: 0.042 ppm
  • NO2: 1.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.02 µg/m³
  • PM10: 2.22 µg/m³
  • O3: 0.038 ppm
  • NO2: 2.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.26 µg/m³
  • PM10: 2.59 µg/m³
  • O3: 0.030 ppm
  • NO2: 5.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.43 µg/m³
  • PM10: 2.89 µg/m³
  • O3: 0.025 ppm
  • NO2: 7.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.54 µg/m³
  • PM10: 3.13 µg/m³
  • O3: 0.022 ppm
  • NO2: 7.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.7 µg/m³
  • PM10: 3.46 µg/m³
  • O3: 0.019 ppm
  • NO2: 7.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 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: 3.07 µg/m³
  • PM10: 4.05 µg/m³
  • O3: 0.017 ppm
  • NO2: 7.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

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