Today | Weather | Tuesday, April 7, 2026

Weather in Rochester, New Hampshire

09:45 AM
Now
Cloudy Weather
36° F
Feels Like 34°
Precipitation 35 %
Wind 6 mph
UV Index (0 - 11+) 1
Humidity 81 %
Today
Snowy Weather
Day 36°
Night 23°
Precipitation 94 %
Wind 7 mph
UV Index (0 - 11+) 1
Overnight Frost 12 AM – 6 AM
Tomorrow Morning Frost 6 AM – 6 AM

Rochester Weather Forecast Updated

Last updated on

Air Quality in Rochester

NOW
38 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.61 µg/m³
PM10 4.31 µg/m³
O3 0.041 ppm
NO2 6.7 ppb
SO2 0.5 ppb
CO 0.19 ppm
NH3 0.5 µg/m³
NO 2.67 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)
PM2.52.61 µg/m³
PM104.31 µg/m³
O379.61 µg/m³
NO212.52 µg/m³
SO21.4 µg/m³
CO215.16 µg/m³
NH30.5 µg/m³
NO2.67 µg/m³