Today | Weather | Friday, October 23, 2026

Weather in Lowell, Massachusetts

12:58 AM
Now
Night
46° F
Feels Like 36°
Precipitation 0 %
Wind 16 mph
Humidity 70 %
Today
Sunny Weather
Day 57°
Night 27°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 3
Tomorrow Morning Frost 12 AM – 8 AM

Lowell Weather Forecast Updated

36 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 23, 2025)
Cloudy Night

Day

61°

Night

39°

Wind

5 mph

Precipitation

14 %

Air Quality in Lowell

NOW
31 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.44 µg/m³
PM10 3.07 µg/m³
O3 0.034 ppm
NO2 2.2 ppb
SO2 0.3 ppb
CO 0.15 ppm
NH3 0.39 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)
PM2.5 – 2.44 µg/m³
PM10 – 3.07 µg/m³
O3 – 66.45 µg/m³
NO2 – 4.22 µg/m³
SO2 – 0.78 µg/m³
CO – 172.71 µg/m³
NH3 – 0.39 µg/m³
NO – 0 µg/m³