Today | Weather | Thursday, February 5, 2026

Weather in Stamford, Connecticut

08:34 PM
Now
Cloudy Night
25° F
Feels Like 18°
Precipitation 0 %
Wind 8 mph
Humidity 60 %
Today
Cloudy Night
Day 34°
Night 16°
Precipitation 0 %
Wind 7 mph

Stamford Weather Forecast Updated

16 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 5, 2025)
Cloudy Weather

Day

34°

Night

27°

Wind

7 mph

UV Index

2

Precipitation

1 %

Air Quality in Stamford

NOW
97 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 34.02 µg/m³
PM10 41.01 µg/m³
O3 0.011 ppm
NO2 35.5 ppb
SO2 2.3 ppb
CO 0.48 ppm
NH3 3.28 µg/m³
NO 8.41 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.534.02 µg/m³
PM1041.01 µg/m³
O322.01 µg/m³
NO266.88 µg/m³
SO26.03 µg/m³
CO554.05 µg/m³
NH33.28 µg/m³
NO8.41 µg/m³