Today | Weather | Sunday, November 23, 2025

Weather in Stamford, Connecticut

01:43 PM
Now
Cloudy Weather
48° F
Feels Like 43°
Precipitation 0 %
Wind 10 mph
UV Index (0 - 11+) 1
Humidity 60 %
Today
Cloudy Weather
Day 48°
Night 39°
Precipitation 2 %
Wind 7 mph
UV Index (0 - 11+) 2

Stamford Weather Forecast Updated

47 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 23, 2024)
Rainy Night

Day

48°

Night

43°

Wind

19 mph

Precipitation

49 %

Air Quality in Stamford

NOW
36 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.81 µg/m³
PM10 6.36 µg/m³
O3 0.039 ppm
NO2 4 ppb
SO2 0.9 ppb
CO 0.15 ppm
NH3 0.37 µg/m³
NO 1.09 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)
PM2.53.81 µg/m³
PM106.36 µg/m³
O376.68 µg/m³
NO27.46 µg/m³
SO22.48 µg/m³
CO168.12 µg/m³
NH30.37 µg/m³
NO1.09 µg/m³