Today | Weather | Thursday, October 30, 2025

Weather in Allentown, Pennsylvania

02:34 PM

Now

59° F

Feels Like 52°

Precipitation 52 %

Wind 15 mph

UV Index (0 - 11+) 1

Humidity 94 %

Today

Day 61°

Night 45°

Precipitation 100 %

Wind 15 mph

UV Index (0 - 11+) 1

Allentown Weather Forecast Updated

46 minutes ago

Last updated on October 30, 2025 1:48 PM

Weather Forecast History

Last Year's Weather on This Day (October 30, 2024)

Day

77°

Night

46°

Wind

4 mph

Precipitation

Air Quality in Allentown

NOW

31 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 0.68 µg/m³

PM₁₀ 0.97 µg/m³

O₃ 0.033 ppm

NO₂ 1.6 ppb

SO₂ 0.4 ppb

CO 0.10 ppm

NH₃ 0.38 µg/m³

NO 0.34 µg/m³

PM_2.5 – 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)

PM_2.5 – 0.68 µg/m³

PM₁₀ – 0.97 µg/m³

O₃ – 64.94 µg/m³

NO₂ – 3.01 µg/m³

SO₂ – 1.15 µg/m³

CO – 115.77 µg/m³

NH₃ – 0.38 µg/m³

NO – 0.34 µg/m³

View Hourly Air Quality Forecast