Today | Weather | Sunday, August 23, 2026

Weather in Philadelphia, Pennsylvania

03:43 PM
Now
Cloudy Weather
84° F
Feels Like 86°
Precipitation 37 %
Wind 10 mph
UV Index (0 - 11+) 4
Humidity 50 %
Today
Sunny with a Chance of Thunderstorms
Day 84°
Night 66°
Precipitation 55 %
Wind 8 mph
UV Index (0 - 11+) 5

Philadelphia Weather Forecast Updated

Weather Forecast History
Last Year's Weather on This Day (August 23, 2025)
Cloudy Night

Day

82°

Night

63°

Wind

7 mph

Precipitation

2 %

Air Quality in Philadelphia

NOW
49 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 6.5 µg/m³
PM10 6.97 µg/m³
O3 0.053 ppm
NO2 0.6 ppb
SO2 0.5 ppb
CO 0.13 ppm
NH3 1.01 µg/m³
NO 0.16 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)
PM2.56.5 µg/m³
PM106.97 µg/m³
O3103.41 µg/m³
NO21.09 µg/m³
SO21.4 µg/m³
CO147.54 µg/m³
NH31.01 µg/m³
NO0.16 µg/m³