Today | Weather | Tuesday, September 15, 2026

Weather in Rochester, New York

08:11 AM
Now
Cloudy Weather
52° F
Feels Like 52°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 1
Humidity 86 %
Today
Cloudy Weather
Day 73°
Night 64°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 5

Rochester Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 15, 2025)
Cloudy Night

Day

75°

Night

54°

Wind

5 mph

Precipitation

1 %

Air Quality in Rochester

NOW
21 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.8 µg/m³
PM10 1.95 µg/m³
O3 0.023 ppm
NO2 1 ppb
SO2 0.1 ppb
CO 0.21 ppm
NH3 0.11 µg/m³
NO 0.07 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.51.8 µg/m³
PM101.95 µg/m³
O344.83 µg/m³
NO21.89 µg/m³
SO20.24 µg/m³
CO238.02 µg/m³
NH30.11 µg/m³
NO0.07 µg/m³