Today | Weather | Wednesday, September 9, 2026

Weather in Manchester, New Hampshire

08:50 PM
Now
Rainy Weather
72° F
Feels Like 68°
Precipitation 75 %
Wind 9 mph
Humidity 82 %
Today
Rainy Weather
Day 73°
Night 66°
Precipitation 96 %
Wind 9 mph

Manchester Weather Forecast Updated

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

Day

73°

Night

46°

Wind

4 mph

Precipitation

1 %

Air Quality in Manchester

NOW
46 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 9.74 µg/m³
PM10 14.01 µg/m³
O3 0.050 ppm
NO2 1.7 ppb
SO2 0.4 ppb
CO 0.11 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)
PM2.59.74 µg/m³
PM1014.01 µg/m³
O398.44 µg/m³
NO23.17 µg/m³
SO21 µg/m³
CO126.7 µg/m³
NH30.08 µg/m³
NO0 µg/m³