Hourly Weather | Today Tuesday, September 1, 2026
Active Weather Warnings
Trenton, New Jersey
12 PM
Rainy Weather
82°
Feels Like 90°
41
Humidity: 75%
UV Index: 2
Wind: 7 mph
1 PM
Cloudy Weather
84°
Feels Like 93°
36
Humidity: 70%
UV Index: 3
Wind: 7 mph
2 PM
Stormy Weather
81°
Feels Like 86°
53
Humidity: 87%
UV Index: 1
Wind: 8 mph
3 PM
Cloudy Weather
86°
Feels Like 95°
49
Humidity: 64%
UV Index: 4
Wind: 8 mph
4 PM
Cloudy Weather
84°
Feels Like 91°
41
Humidity: 70%
UV Index: 3
Wind: 9 mph
5 PM
Cloudy Weather
84°
Feels Like 91°
34
Humidity: 70%
UV Index: 2
Wind: 9 mph
6 PM
Cloudy Weather
82°
Feels Like 90°
34
Humidity: 73%
UV Index: 1
Wind: 8 mph
7 PM
Cloudy Weather
81°
Feels Like 88°
34
Humidity: 77%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Weather
81°
Feels Like 88°
34
Humidity: 79%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Weather
79°
Feels Like 84°
34
Humidity: 84%
UV Index: 0
Wind: 5 mph
10 PM
Cloudy Weather
75°
Feels Like 81°
37
Humidity: 88%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Weather
73°
Feels Like 79°
43
Humidity: 92%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

12 PM
48 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.47 µg/m³
  • PM10: 13.24 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM
46 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.11 µg/m³
  • PM10: 12.71 µg/m³
  • O3: 0.045 ppm
  • NO2: 2.4 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
47 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.21 µg/m³
  • PM10: 12.76 µg/m³
  • O3: 0.048 ppm
  • NO2: 2.4 ppb
  • SO2: 1 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 10.24 µg/m³
  • PM10: 11.51 µg/m³
  • O3: 0.051 ppm
  • NO2: 2.1 ppb
  • SO2: 0.9 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 8.76 µg/m³
  • PM10: 9.8 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.85 µg/m³
  • PM10: 8.8 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.62 µg/m³
  • PM10: 8.72 µg/m³
  • O3: 0.049 ppm
  • NO2: 2.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.86 µg/m³
  • PM10: 9.27 µg/m³
  • O3: 0.042 ppm
  • NO2: 3.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.96 µg/m³
  • PM10: 9.65 µg/m³
  • O3: 0.037 ppm
  • NO2: 4.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
33 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.92 µg/m³
  • PM10: 9.77 µg/m³
  • O3: 0.032 ppm
  • NO2: 4.3 ppb
  • SO2: 0.6 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
34 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.09 µg/m³
  • PM10: 10.14 µg/m³
  • O3: 0.028 ppm
  • NO2: 4.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
35 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.34 µg/m³
  • PM10: 10.48 µg/m³
  • O3: 0.024 ppm
  • NO2: 4.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Weather Alerts and Warnings for Trenton

Moderate Expected Likely

Heat Advisory

Heat Advisory issued September 1 at 2:30AM EDT until September 1 at 8:00PM EDT by NWS Mount Holly NJ
Sep 1, 12:00 PM Sep 1, 8:00 PM
WHAT: Heat index values up to 100 degrees expected.

WHERE: In Delaware, New Castle County. In New Jersey, Mercer,
Camden, Gloucester, and Northwestern Burlington Counties. In
Pennsylvania, Delaware, Eastern Chester, Eastern Montgomery, Lower
Bucks, and Philadelphia Counties.

WHEN: From noon today to 8 PM EDT this evening.

IMPACTS: Hot temperatures and high humidity may cause heat
illnesses.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Updated: Sep 1, 11:15 AM Source: NWS Alert