Today | Weather | Saturday, September 26, 2026

Weather in Pittsburgh, Pennsylvania

09:46 AM
Now
Cloudy Weather
61° F
Feels Like 64°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 3
Humidity 68 %
Today
Cloudy Weather
Day 75°
Night 54°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 5

Pittsburgh Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 26, 2025)
Cloudy Night

Day

79°

Night

59°

Wind

4 mph

Precipitation

2 %

Air Quality in Pittsburgh

NOW
19 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.35 µg/m³
PM10 4.93 µg/m³
O3 0.020 ppm
NO2 2.4 ppb
SO2 0.6 ppb
CO 0.14 ppm
NH3 0.14 µg/m³
NO 1.67 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)
PM2.5 – 4.35 µg/m³
PM10 – 4.93 µg/m³
O3 – 39.5 µg/m³
NO2 – 4.48 µg/m³
SO2 – 1.46 µg/m³
CO – 163.07 µg/m³
NH3 – 0.14 µg/m³
NO – 1.67 µg/m³