Today | Weather | Wednesday, March 18, 2026

Weather in Bristol, Connecticut

05:46 AM
Now
Cloudy Night
25° F
Feels Like 19°
Precipitation 0 %
Wind 6 mph
Humidity 50 %
Today
Cloudy Weather
Day 37°
Night 23°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 5
Tomorrow Morning Frost 1 AM – 7 AM

Bristol Weather Forecast Updated

22 minutes ago
Last updated on

Air Quality in Bristol

NOW
45 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.02 µg/m³
PM10 2.57 µg/m³
O3 0.048 ppm
NO2 3.8 ppb
SO2 1.1 ppb
CO 0.15 ppm
NH3 0.49 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

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

Show raw pollutant concentrations (µg/m³)
PM2.51.02 µg/m³
PM102.57 µg/m³
O395.16 µg/m³
NO27.24 µg/m³
SO22.85 µg/m³
CO171.56 µg/m³
NH30.49 µg/m³
NO0 µg/m³