Today | Weather | Thursday, March 19, 2026

Weather in Pittsburgh, Pennsylvania

03:42 AM
Now
Cloudy Weather
34° F
Feels Like 28°
Precipitation 7 %
Wind 7 mph
Humidity 80 %
Today
Rainy Weather
Day 48°
Night 36°
Precipitation 55 %
Wind 8 mph
UV Index (0 - 11+) 1

Pittsburgh Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 19, 2025)
Cloudy Weather

Day

79°

Night

59°

Wind

12 mph

UV Index

5

Precipitation

0 %

Air Quality in Pittsburgh

NOW
53 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.33 µg/m³
PM10 3.81 µg/m³
O3 0.055 ppm
NO2 1 ppb
SO2 0.2 ppb
CO 0.14 ppm
NH3 0.37 µg/m³
NO 0 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)
PM2.53.33 µg/m³
PM103.81 µg/m³
O3107.64 µg/m³
NO21.83 µg/m³
SO20.56 µg/m³
CO164.81 µg/m³
NH30.37 µg/m³
NO0 µg/m³