Today | Weather | Saturday, January 3, 2026

Weather in Philadelphia, Pennsylvania

04:14 PM
Now
Cloudy Weather
34° F
Feels Like 30°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 0
Humidity 41 %
Today
Cloudy Weather
Day 34°
Night 27°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 2

Philadelphia Weather Forecast Updated

9 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (January 3, 2025)
Snowy Weather

Day

37°

Night

27°

Wind

12 mph

UV Index

2

Precipitation

80 %

Air Quality in Philadelphia

NOW
32 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 7.15 µg/m³
PM10 9.24 µg/m³
O3 0.035 ppm
NO2 7.4 ppb
SO2 2 ppb
CO 0.18 ppm
NH3 2.06 µg/m³
NO 0.45 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)
PM2.57.15 µg/m³
PM109.24 µg/m³
O368.24 µg/m³
NO213.9 µg/m³
SO25.3 µg/m³
CO204.05 µg/m³
NH32.06 µg/m³
NO0.45 µg/m³