Today | Weather | Tuesday, April 7, 2026

Weather in Lancaster, Pennsylvania

02:47 PM
Now
Cloudy Weather
48° F
Feels Like 43°
Precipitation 0 %
Wind 20 mph
UV Index (0 - 11+) 5
Humidity 31 %
Today
Sunny Weather
Day 48°
Night 25°
Precipitation 25 %
Wind 16 mph
UV Index (0 - 11+) 7
Tomorrow Morning Frost 4 AM – 7 AM

Lancaster Weather Forecast Updated

6 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 7, 2025)

Day

48°

Night

37°

Air Quality in Lancaster

NOW
68 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.24 µg/m³
PM10 1.76 µg/m³
O3 0.060 ppm
NO2 1 ppb
SO2 0.6 ppb
CO 0.13 ppm
NH3 0.59 µg/m³
NO 0.53 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)
PM2.51.24 µg/m³
PM101.76 µg/m³
O3117.09 µg/m³
NO21.92 µg/m³
SO21.5 µg/m³
CO149.71 µg/m³
NH30.59 µg/m³
NO0.53 µg/m³