Today | Weather | Saturday, September 19, 2026
Active Weather Warnings

Weather in Quincy, Massachusetts

04:47 AM
Now
Cloudy Night
55° F
Feels Like 52°
Precipitation 0 %
Wind 9 mph
Humidity 63 %
Today
Cloudy Weather
Day 64°
Night 48°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 5

Quincy Weather Forecast Updated

12 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 19, 2025)
Night

Day

81°

Night

52°

Wind

8 mph

Precipitation

0 %

Air Quality in Quincy

NOW
31 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.74 µg/m³
PM10 2.57 µg/m³
O3 0.033 ppm
NO2 1.6 ppb
SO2 0.4 ppb
CO 0.17 ppm
NH3 0.41 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)
PM2.51.74 µg/m³
PM102.57 µg/m³
O364.99 µg/m³
NO22.97 µg/m³
SO21.14 µg/m³
CO190.38 µg/m³
NH30.41 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Quincy

Moderate Expected Likely

Rip Current Statement

Rip Current Statement issued September 19 at 2:32AM EDT until September 19 at 8:00PM EDT by NWS Boston/Norton MA
Sep 19, 8:00 AM Sep 19, 8:00 PM
WHAT: Dangerous rip currents expected.

WHERE: Eastern Essex MA, Suffolk MA, Eastern Norfolk MA,
Eastern Plymouth MA, Barnstable MA and Nantucket MA Counties.

WHEN: From 8 AM EDT this morning through this evening.

IMPACTS: Rip currents can sweep even the best swimmers away
from shore into deeper water.
+ Read More
Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.
Updated: Sep 19, 4:35 AM Source: NWS Alert