Today | Weather | Monday, September 21, 2026

Weather in Fall River, Massachusetts

01:00 PM
Now
Cloudy Weather
64° F
Feels Like 63°
Precipitation 13 %
Wind 9 mph
UV Index (0 - 11+) 1
Humidity 70 %
Today
Cloudy Weather
Day 66°
Night 52°
Precipitation 25 %
Wind 9 mph
UV Index (0 - 11+) 2

Fall River Weather Forecast Updated

44 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 21, 2025)
Cloudy Night

Day

72°

Night

46°

Wind

4 mph

Precipitation

49 %

Air Quality in Fall River

NOW
39 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.14 µg/m³
PM10 6.44 µg/m³
O3 0.042 ppm
NO2 1.1 ppb
SO2 0.3 ppb
CO 0.16 ppm
NH3 0 µg/m³
NO 0.21 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)
PM2.52.14 µg/m³
PM106.44 µg/m³
O382.31 µg/m³
NO22.05 µg/m³
SO20.69 µg/m³
CO184.23 µg/m³
NH30 µg/m³
NO0.21 µg/m³