Today | Weather | Wednesday, August 12, 2026

Weather in Bristol, Connecticut

07:48 AM
Now
Cloudy Weather
64° F
Feels Like 68°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 2
Humidity 91 %
Today
Cloudy Weather
Day 84°
Night 66°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Bristol Weather Forecast Updated

Last updated on

Air Quality in Bristol

NOW
17 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 4.15 µg/m³
PM10 6.22 µg/m³
O3 0.011 ppm
NO2 10.4 ppb
SO2 2.2 ppb
CO 0.16 ppm
NH3 0.76 µg/m³
NO 2.85 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)
PM2.54.15 µg/m³
PM106.22 µg/m³
O322.49 µg/m³
NO219.54 µg/m³
SO25.77 µg/m³
CO188.88 µg/m³
NH30.76 µg/m³
NO2.85 µg/m³