Today | Weather | Wednesday, October 28, 2026

Weather in Manchester, New Hampshire

05:40 PM
Now
Cloudy Night
50° F
Feels Like 48°
Precipitation 0 %
Wind 5 mph
Humidity 52 %
Today
Cloudy Weather
Day 54°
Night 37°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 3
Overnight Frost 5 AM – 8 AM

Manchester Weather Forecast Updated

25 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 28, 2025)
Cloudy Night

Day

57°

Night

39°

Wind

6 mph

Precipitation

4 %

Air Quality in Manchester

NOW
30 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.85 µg/m³
PM10 5.49 µg/m³
O3 0.032 ppm
NO2 6.9 ppb
SO2 0.5 ppb
CO 0.18 ppm
NH3 0.53 µg/m³
NO 0.03 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)
PM2.5 – 3.85 µg/m³
PM10 – 5.49 µg/m³
O3 – 63.67 µg/m³
NO2 – 13.02 µg/m³
SO2 – 1.39 µg/m³
CO – 201.29 µg/m³
NH3 – 0.53 µg/m³
NO – 0.03 µg/m³