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Williston (Vermont) (US)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Cloudy
3°C
Cloudy
Humidity
45.3%
Wind
8 m/s
Pressure
1023.2 hPa
Direction
145°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
3° / 16°
Precip.
1.3mm
Max wind
11.5 m/s

Hourly Forecast

16.03
Now
Weather
8
16.03
01:00
Weather
9
16.03
02:00
Weather
10
16.03
03:00
Weather
10
16.03
04:00
Weather
10
16.03
05:00
Weather
11
16.03
06:00
Weather
11
16.03
07:00
Weather
12
16.03
08:00
Weather
11
16.03
09:00
Weather
0.3
11
16.03
10:00
Weather
0.5
9
16.03
11:00
Weather
0.2
10
16.03
12:00
Weather
0.1
9
16.03
13:00
Weather
9
16.03
14:00
Weather
9
16.03
15:00
Weather
8
16.03
16:00
Weather
11°
8
16.03
17:00
Weather
11°
8
16.03
18:00
Weather
13°
8
16.03
19:00
Weather
13°
7
16.03
20:00
Weather
14°
9
16.03
21:00
Weather
16°
10
16.03
22:00
Weather
16°
10
16.03
23:00
Weather
15°
0.2
10

Temperature

16°C
3°C
00:00
3°C
01:00
3°C
02:00
3°C
03:00
3°C
04:00
3°C
05:00
3°C
06:00
4°C
07:00
4°C
08:00
4°C
09:00
5°C
10:00
5°C
11:00
5°C
12:00
5°C
13:00
6°C
14:00
7°C
15:00
8°C
16:00
11°C
17:00
11°C
18:00
13°C
19:00
13°C
20:00
14°C
21:00
16°C
22:00
16°C
23:00
15°C
00:00 11:00 23:00

Precipitation

0.5mm
0mm
09:00
0.3mm
10:00
0.5mm
11:00
0.2mm
12:00
0.1mm
23:00
0.2mm
00:00 11:00 23:00

Wind

11.5m/s
0m/s
00:00
8 m/s
01:00
8.8 m/s
02:00
9.8 m/s
03:00
10.1 m/s
04:00
9.6 m/s
05:00
10.5 m/s
06:00
11.3 m/s
07:00
11.5 m/s
08:00
10.8 m/s
09:00
10.9 m/s
10:00
9.3 m/s
11:00
9.5 m/s
12:00
9.4 m/s
13:00
9.3 m/s
14:00
9.2 m/s
15:00
8.1 m/s
16:00
8.4 m/s
17:00
8.3 m/s
18:00
7.7 m/s
19:00
6.9 m/s
20:00
8.6 m/s
21:00
9.9 m/s
22:00
10.2 m/s
23:00
9.5 m/s
00:00 11:00 23:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
92.4 km
59
19.7%

Measurement time: 2026-03-15 23:00

Calculated from PM2.5/PM10

O3
93.3 km
100.74 µg/m3
63%

Measurement time: 2026-03-15 23:29

source: OpenWeatherMap

PM2.5
92.4 km
16 µg/m3
19%

Measurement time: 2026-03-15 23:00

source: Aqicn

PM10
92.4 km
21 µg/m3
15%

Measurement time: 2026-03-15 23:00

source: Aqicn

NO2
93.3 km
4.21 µg/m3
2.1%

Measurement time: 2026-03-15 23:29

source: OpenWeatherMap

CO
93.3 km
0.15814 mg/m3
1.1%

Measurement time: 2026-03-15 23:29

source: OpenWeatherMap

SO2
93.3 km
0.66 µg/m3
0.2%

Measurement time: 2026-03-15 23:29

source: OpenWeatherMap

Info


Region: Vermont
Latitude: 44.43755
Longitude: -73.06818

Cities in the area:


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About Air Quality in Williston

Air quality in Williston is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Williston

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Williston?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Williston

If you're planning outdoor activities in Williston, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.