Today | Weather | Wednesday, September 16, 2026

Weather in Washington, District of Columbia

04:40 PM
Now
Cloudy Weather
84° F
Feels Like 84°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 2
Humidity 50 %
Today
Sunny Weather
Day 84°
Night 66°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 6

Washington Weather Forecast Updated

19 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 16, 2025)
Rainy Weather

Day

72°

Night

61°

Wind

15 mph

Precipitation

97 %

Air Quality in Washington

NOW
67 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 8.61 µg/m³
PM10 12.52 µg/m³
O3 0.059 ppm
NO2 0.9 ppb
SO2 0.6 ppb
CO 0.16 ppm
NH3 0.28 µg/m³
NO 0.18 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.58.61 µg/m³
PM1012.52 µg/m³
O3116.64 µg/m³
NO21.61 µg/m³
SO21.53 µg/m³
CO183.37 µg/m³
NH30.28 µg/m³
NO0.18 µg/m³