Hourly Weather | Today Tuesday, September 1, 2026
Rochester, New Hampshire
12 PM
Rainy Weather
68°
Feels Like 68°
52
Humidity: 75%
UV Index: 1
Wind: 6 mph
1 PM
Cloudy Weather
70°
Feels Like 70°
44
Humidity: 73%
UV Index: 2
Wind: 6 mph
2 PM
Rainy Weather
70°
Feels Like 66°
60
Humidity: 70%
UV Index: 1
Wind: 6 mph
3 PM
Rainy Weather
70°
Feels Like 68°
60
Humidity: 69%
UV Index: 1
Wind: 6 mph
4 PM
Cloudy Weather
70°
Feels Like 68°
49
Humidity: 73%
UV Index: 1
Wind: 6 mph
5 PM
Cloudy Weather
68°
Feels Like 68°
34
Humidity: 76%
UV Index: 1
Wind: 6 mph
6 PM
Cloudy Weather
66°
Feels Like 66°
34
Humidity: 79%
UV Index: 0
Wind: 6 mph
7 PM
Cloudy Weather
66°
Feels Like 64°
37
Humidity: 81%
UV Index: 0
Wind: 4 mph
8 PM
Cloudy Weather
63°
Feels Like 63°
43
Humidity: 91%
UV Index: 0
Wind: 4 mph
9 PM
Cloudy Night
63°
Feels Like 61°
47
Humidity: 94%
UV Index: 0
Wind: 4 mph
10 PM
Rainy Weather
61°
Feels Like 59°
51
Humidity: 96%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Weather
61°
Feels Like 61°
40
Humidity: 96%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

12 PM
29 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.07 µg/m³
  • PM10: 8.22 µg/m³
  • O3: 0.021 ppm
  • NO2: 5 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.93 µg/m³
  • PM10: 7.87 µg/m³
  • O3: 0.022 ppm
  • NO2: 4.8 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

2 PM
28 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.69 µg/m³
  • PM10: 7.47 µg/m³
  • O3: 0.022 ppm
  • NO2: 4.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

3 PM
26 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.25 µg/m³
  • PM10: 6.87 µg/m³
  • O3: 0.025 ppm
  • NO2: 4.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 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: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.7 µg/m³
  • PM10: 6.24 µg/m³
  • O3: 0.026 ppm
  • NO2: 4.3 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.06 µg/m³
  • PM10: 5.55 µg/m³
  • O3: 0.027 ppm
  • NO2: 4.7 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.51 µg/m³
  • PM10: 5.03 µg/m³
  • O3: 0.027 ppm
  • NO2: 5.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.19 µg/m³
  • PM10: 4.82 µg/m³
  • O3: 0.027 ppm
  • NO2: 5.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.98 µg/m³
  • PM10: 4.72 µg/m³
  • O3: 0.027 ppm
  • NO2: 5.3 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.85 µg/m³
  • PM10: 4.71 µg/m³
  • O3: 0.027 ppm
  • NO2: 4.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.84 µg/m³
  • PM10: 4.85 µg/m³
  • O3: 0.026 ppm
  • NO2: 4.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 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: 3.83 µg/m³
  • PM10: 4.97 µg/m³
  • O3: 0.024 ppm
  • NO2: 4.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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