Hourly Weather | Today Wednesday, December 24, 2025
Nashua, New Hampshire
3 PM
Cloudy Weather
34°
Feels Like 27°
47
Humidity: 61%
Wind: 9 mph
UV Index: 0
4 PM
Cloudy Weather
34°
Feels Like 28°
34
Humidity: 63%
Wind: 7 mph
UV Index: 0
5 PM
Cloudy Night
34°
Feels Like 30°
34
Humidity: 63%
Wind: 6 mph
UV Index: 0
6 PM
Cloudy Night
30°
Feels Like 30°
22
Humidity: 66%
Wind: 5 mph
UV Index: 0
7 PM
Cloudy Night
28°
Feels Like 25°
0
Humidity: 72%
Wind: 6 mph
UV Index: 0
8 PM
Cloudy Night
27°
Feels Like 25°
0
Humidity: 73%
Wind: 5 mph
UV Index: 0
9 PM
Cloudy Night
27°
Feels Like 25°
0
Humidity: 75%
Wind: 5 mph
UV Index: 0
10 PM
Cloudy Night
25°
Feels Like 25°
0
Humidity: 77%
Wind: 5 mph
UV Index: 0
11 PM
Cloudy Night
21°
Feels Like 21°
0
Humidity: 85%
Wind: 5 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.71 µg/m³
  • PM10: 1.01 µg/m³
  • O3: 0.025 ppm
  • NO2: 3.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.87 µg/m³
  • PM10: 1.23 µg/m³
  • O3: 0.024 ppm
  • NO2: 4.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.07 µg/m³
  • PM10: 1.53 µg/m³
  • O3: 0.023 ppm
  • NO2: 5.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.43 µg/m³
  • PM10: 2.04 µg/m³
  • O3: 0.022 ppm
  • NO2: 6.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.21 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.02 µg/m³
  • PM10: 2.82 µg/m³
  • O3: 0.021 ppm
  • NO2: 7.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.22 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.78 µg/m³
  • PM10: 3.85 µg/m³
  • O3: 0.019 ppm
  • NO2: 8.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.23 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.68 µg/m³
  • PM10: 5.06 µg/m³
  • O3: 0.018 ppm
  • NO2: 9.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.24 ppm

Health Recommendations:

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

10 PM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.53 µg/m³
  • PM10: 6.19 µg/m³
  • O3: 0.017 ppm
  • NO2: 10.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.25 ppm

Health Recommendations:

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

11 PM
22 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.24 µg/m³
  • PM10: 7.1 µg/m³
  • O3: 0.016 ppm
  • NO2: 11.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.25 ppm

Health Recommendations:

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