Today | Weather | Monday, September 21, 2026

Weather in Reading, Pennsylvania

01:53 PM
Now
Cloudy Weather
70° F
Feels Like 70°
Precipitation 33 %
Wind 8 mph
UV Index (0 - 11+) 2
Humidity 58 %
Today
Rainy Weather
Day 70°
Night 55°
Precipitation 80 %
Wind 7 mph
UV Index (0 - 11+) 3

Reading Weather Forecast Updated

2 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 21, 2025)
Cloudy Night

Day

72°

Night

54°

Wind

5 mph

Precipitation

8 %

Air Quality in Reading

NOW
25 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.88 µg/m³
PM10 3.67 µg/m³
O3 0.027 ppm
NO2 3.4 ppb
SO2 0.9 ppb
CO 0.19 ppm
NH3 0.79 µg/m³
NO 0.92 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)
PM2.52.88 µg/m³
PM103.67 µg/m³
O352.38 µg/m³
NO26.32 µg/m³
SO22.23 µg/m³
CO219.7 µg/m³
NH30.79 µg/m³
NO0.92 µg/m³