Today | Weather | Monday, October 12, 2026

Weather in Lewiston, Maine

09:08 PM
Now
Cloudy Weather
59° F
Feels Like 55°
Precipitation 37 %
Wind 8 mph
Humidity 81 %
Today
Cloudy Weather
Day 70°
Night 41°
Precipitation 12 %
Wind 6 mph
UV Index (0 - 11+) 3

Lewiston Weather Forecast Updated

Air Quality in Lewiston

NOW
31 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.44 µg/m³
PM10 3.08 µg/m³
O3 0.033 ppm
NO2 3.4 ppb
SO2 0.1 ppb
CO 0.13 ppm
NH3 0.25 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 – 3.08 µg/m³
O3 – 64.95 µg/m³
NO2 – 6.34 µg/m³
SO2 – 0.39 µg/m³
CO – 154 µg/m³
NH3 – 0.25 µg/m³
NO – 0 µg/m³