Today | Weather | Tuesday, April 7, 2026

Weather in Nashua, New Hampshire

09:41 AM
Now
Cloudy Weather
36° F
Feels Like 36°
Precipitation 42 %
Wind 5 mph
UV Index (0 - 11+) 1
Humidity 78 %
Today
Snowy Weather
Day 45°
Night 25°
Precipitation 85 %
Wind 8 mph
UV Index (0 - 11+) 2
Tomorrow Morning Frost 5 AM – 5 AM

Nashua Weather Forecast Updated

Last updated on

Air Quality in Nashua

NOW
42 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.9 µg/m³
PM10 7.23 µg/m³
O3 0.045 ppm
NO2 5.4 ppb
SO2 0.8 ppb
CO 0.18 ppm
NH3 0.47 µg/m³
NO 2.81 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)
PM2.54.9 µg/m³
PM107.23 µg/m³
O388.08 µg/m³
NO210.24 µg/m³
SO22.17 µg/m³
CO206.97 µg/m³
NH30.47 µg/m³
NO2.81 µg/m³