Hourly Weather | Today Thursday, June 11, 2026
Lewiston, Maine
2 PM
Stormy Weather
79°
Feels Like 84°
51
Humidity: 84%
UV Index: 2
Wind: 4 mph
3 PM
Cloudy Weather
82°
Feels Like 91°
47
Humidity: 69%
UV Index: 3
Wind: 4 mph
4 PM
Cloudy Weather
81°
Feels Like 90°
40
Humidity: 74%
UV Index: 2
Wind: 4 mph
5 PM
Cloudy Weather
81°
Feels Like 90°
34
Humidity: 74%
UV Index: 2
Wind: 6 mph
6 PM
Cloudy Weather
81°
Feels Like 88°
34
Humidity: 76%
UV Index: 1
Wind: 6 mph
7 PM
Cloudy Weather
79°
Feels Like 84°
34
Humidity: 79%
UV Index: 1
Wind: 6 mph
8 PM
Cloudy Weather
77°
Feels Like 81°
34
Humidity: 82%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Weather
75°
Feels Like 77°
34
Humidity: 86%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Weather
73°
Feels Like 75°
37
Humidity: 87%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Weather
70°
Feels Like 72°
43
Humidity: 90%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 3.93 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.7 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.81 µg/m³
  • PM10: 3.94 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.72 µg/m³
  • PM10: 3.88 µg/m³
  • O3: 0.044 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 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: 3.7 µg/m³
  • PM10: 3.88 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.12 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: 4.28 µg/m³
  • PM10: 4.54 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.04 µg/m³
  • PM10: 5.4 µg/m³
  • O3: 0.035 ppm
  • NO2: 3.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.43 µg/m³
  • PM10: 5.89 µg/m³
  • O3: 0.031 ppm
  • NO2: 4.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

9 PM
24 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 5.69 µg/m³
  • PM10: 6.24 µg/m³
  • O3: 0.026 ppm
  • NO2: 4.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.49 µg/m³
  • PM10: 6.11 µg/m³
  • O3: 0.021 ppm
  • NO2: 5 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.76 µg/m³
  • PM10: 5.37 µg/m³
  • O3: 0.018 ppm
  • NO2: 4.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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