Today | Weather | Thursday, August 27, 2026
Active Weather Warnings

Weather in Stamford, Connecticut

07:21 PM
Now
Cloudy Weather
75° F
Feels Like 79°
Precipitation 40 %
Wind 8 mph
UV Index (0 - 11+) 0
Humidity 83 %
Today
Stormy Weather
Day 82°
Night 70°
Precipitation 96 %
Wind 9 mph
UV Index (0 - 11+) 3

Stamford Weather Forecast Updated

Weather Forecast History
Last Year's Weather on This Day (August 27, 2025)
Cloudy Weather

Day

75°

Night

55°

Wind

10 mph

UV Index

70

Precipitation

0 %

Air Quality in Stamford

NOW
34 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.62 µg/m³
PM10 3.92 µg/m³
O3 0.037 ppm
NO2 2.3 ppb
SO2 0.2 ppb
CO 0.11 ppm
NH3 0.07 µg/m³
NO 0.09 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)
PM2.52.62 µg/m³
PM103.92 µg/m³
O371.82 µg/m³
NO24.31 µg/m³
SO20.57 µg/m³
CO128.41 µg/m³
NH30.07 µg/m³
NO0.09 µg/m³

Weather Alerts and Warnings for Stamford

Severe Future Possible

Flood Watch

Flood Watch issued August 26 at 2:27PM EDT until August 27 at 11:00PM EDT by NWS Upton NY
Aug 27, 12:00 PM Aug 27, 11:00 PM
WHAT: Flooding caused by excessive rainfall is possible.

WHERE: Portions of southern Connecticut, including the following
areas, Northern Fairfield and Southern Fairfield, northeast New
Jersey, including the following areas, Eastern Bergen, Eastern
Essex, Eastern Passaic, Eastern Union, Hudson, Western Bergen,
Western Essex, Western Passaic and Western Union, and southeast New
York, including the following areas, Bronx, Kings (Brooklyn), New
York (Manhattan), Northern Nassau, Northern Queens, Northern
Westchester, Orange, Putnam, Richmond (Staten Island), Rockland,
Southern Nassau, Southern Queens and Southern Westchester.

WHEN: From Thursday afternoon through Thursday evening.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas.

ADDITIONAL DETAILS:
- Total rainfall amounts are around 1 to 1.5 inches in the watch
area, but some areas could receive up to 3 inches with peak
rainfall rates between 1.5 to 2.5 in/hr.
- http://www.weather.gov/safety/flood
+ Read More
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Updated: Aug 26, 9:09 PM Source: NWS Alert