Today | Weather | Sunday, August 9, 2026

Weather in Manchester, New Hampshire

02:55 AM
Now
Night
72° F
Feels Like 72°
Precipitation 16 %
Wind 6 mph
Humidity 88 %
Today
Cloudy Weather
Day 90°
Night 61°
Precipitation 25 %
Wind 10 mph
UV Index (0 - 11+) 7

Manchester Weather Forecast Updated

27 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 9, 2025)
Cloudy Night

Day

88°

Night

59°

Wind

2 mph

Precipitation

2 %

Air Quality in Manchester

NOW
19 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.01 µg/m³
PM10 4.58 µg/m³
O3 0.020 ppm
NO2 2.5 ppb
SO2 0.3 ppb
CO 0.14 ppm
NH3 0.08 µg/m³
NO 0 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)
PM2.54.01 µg/m³
PM104.58 µg/m³
O340.03 µg/m³
NO24.62 µg/m³
SO20.67 µg/m³
CO162.39 µg/m³
NH30.08 µg/m³
NO0 µg/m³