Today | Weather | Wednesday, March 18, 2026

Weather in New Rochelle, New York

06:11 PM
Now
Cloudy Weather
36° F
Feels Like 28°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 1
Humidity 36 %
Today
Cloudy Weather
Day 36°
Night 30°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 5

New Rochelle Weather Forecast Updated

Last updated on

Air Quality in New Rochelle

NOW
54 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.15 µg/m³
PM10 6.19 µg/m³
O3 0.055 ppm
NO2 3.4 ppb
SO2 0.6 ppb
CO 0.15 ppm
NH3 0.15 µg/m³
NO 0.73 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)
PM2.54.15 µg/m³
PM106.19 µg/m³
O3108.23 µg/m³
NO26.36 µg/m³
SO21.7 µg/m³
CO174.29 µg/m³
NH30.15 µg/m³
NO0.73 µg/m³