Today | Weather | Thursday, August 21, 2025

Coastal Flood Statement (Informational notice about conditions that could lead to minor coastal flooding or increased water levels)

Weather in Quincy, Massachusetts

08:17 PM

Now

64° F

Feels Like 59°

Precipitation 0 %

Wind 17 mph

Humidity 78 %

Today

Day 68°

Night 57°

Precipitation 0 %

Wind 15 mph

Other:

Partly overcast and breezy.

Quincy Weather Forecast Updated

2 minutes ago

Last updated on August 21, 2025 8:15 PM

Last Year's Weather on This Day (August 21, 2024)

75°

57°

NOW

29 AQI

Good air quality Dominant pollutant: PM2.5

PM2.5 8.04 µg/m³

PM10 13.18 µg/m³

O₃ 32.77 ppb

NO₂ 3.46 ppb

SO₂ 0.35 ppb

CO 155.57 ppb

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

With this level of air quality, you have no limitations. Enjoy the outdoors