Hourly Weather | Today Monday, September 21, 2026
Barre, Vermont
12 PM
Cloudy Weather
55°
Feels Like 55°
14
Humidity: 74%
UV Index: 1
Wind: 7 mph
1 PM
Cloudy Weather
57°
Feels Like 57°
9
Humidity: 68%
UV Index: 2
Wind: 8 mph
2 PM
Cloudy Weather
57°
Feels Like 59°
0
Humidity: 64%
UV Index: 3
Wind: 8 mph
3 PM
Cloudy Weather
59°
Feels Like 63°
0
Humidity: 60%
UV Index: 4
Wind: 7 mph
4 PM
Cloudy Weather
57°
Feels Like 59°
0
Humidity: 61%
UV Index: 3
Wind: 7 mph
5 PM
Cloudy Weather
55°
Feels Like 57°
0
Humidity: 63%
UV Index: 2
Wind: 7 mph
6 PM
Sunny Weather
54°
Feels Like 54°
0
Humidity: 66%
UV Index: 1
Wind: 7 mph
7 PM
Night
52°
Feels Like 50°
0
Humidity: 74%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
52°
Feels Like 50°
0
Humidity: 71%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
48°
Feels Like 46°
0
Humidity: 77%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
46°
Feels Like 45°
0
Humidity: 82%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
43°
Feels Like 41°
0
Humidity: 87%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 3 µg/m³
  • PM10: 3.36 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 2.1 µg/m³
  • PM10: 2.37 µg/m³
  • O3: 0.024 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.63 µg/m³
  • PM10: 1.85 µg/m³
  • O3: 0.025 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.34 µg/m³
  • PM10: 1.55 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.14 µg/m³
  • PM10: 1.34 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 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: 0.93 µg/m³
  • PM10: 1.13 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.78 µg/m³
  • PM10: 0.97 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.73 µg/m³
  • PM10: 0.93 µg/m³
  • O3: 0.025 ppm
  • NO2: 1.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.69 µg/m³
  • PM10: 0.95 µg/m³
  • O3: 0.024 ppm
  • NO2: 1.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.66 µg/m³
  • PM10: 0.94 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.2 ppb
  • SO2: 0 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.62 µg/m³
  • PM10: 0.91 µg/m³
  • O3: 0.022 ppm
  • NO2: 1.2 ppb
  • SO2: 0 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: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.58 µg/m³
  • PM10: 0.87 µg/m³
  • O3: 0.022 ppm
  • NO2: 1.2 ppb
  • SO2: 0 ppb
  • CO: 0.15 ppm

Health Recommendations:

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