Today | Weather | Tuesday, June 30, 2026

Active Weather Warnings

Air Quality Alert

Weather in Trenton, New Jersey

12:30 AM

Now

73° F

Feels Like 72°

Precipitation 0 %

Wind 7 mph

Humidity 62 %

Today

Day 91°

Night 70°

Precipitation 1 %

Wind 8 mph

UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Trenton Weather Forecast Updated

Last updated on June 29, 2026 at 10:59 PM

Air Quality in Trenton

NOW

36 AQI

Good air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 8.58 µg/m³

PM₁₀ 12.32 µg/m³

O₃ 0.036 ppm

NO₂ 2.1 ppb

SO₂ 0.3 ppb

CO 0.12 ppm

NH₃ 1.72 µg/m³

NO 0 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 – 8.58 µg/m³

PM₁₀ – 12.32 µg/m³

O₃ – 71.51 µg/m³

NO₂ – 3.91 µg/m³

SO₂ – 0.75 µg/m³

CO – 139.41 µg/m³

NH₃ – 1.72 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Trenton

Air Quality Alert

Air Quality Alert issued June 29 at 3:45PM EDT by NWS Mount Holly NJ

Jun 29, 3:45 PM → Jul 1, 12:00 AM

The New Jersey Department of Environmental Protection has issued
a code orange air quality alert Tuesday for Middlesex and Mercer
Counties in New Jersey.

A code orange air quality alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children...people
suffering from asthma... heart disease or other lung
diseases...and the elderly. The effects of air pollution can
be minimized by avoiding strenuous activity or exercise outdoors.

For more information on ground-level ozone and fine
particles...visit http://www.state.nj.us/dep/

Updated: Jun 29, 10:59 PM Source: NWS Alert