Today | Weather | Saturday, April 4, 2026

Weather in Washington, District of Columbia

09:32 PM
Now
Cloudy Night
77° F
Feels Like 73°
Precipitation 1 %
Wind 9 mph
Humidity 54 %
Today
Cloudy Night
Day 86°
Night 66°
Precipitation 25 %
Wind 12 mph

Washington Weather Forecast Updated

41 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 4, 2025)
Stormy Weather

Day

73°

Night

59°

Wind

7 mph

UV Index

3

Precipitation

40 %

Air Quality in Washington

NOW
39 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.68 µg/m³
PM10 3.71 µg/m³
O3 0.042 ppm
NO2 1.2 ppb
SO2 0.4 ppb
CO 0.11 ppm
NH3 1.12 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)
PM2.51.68 µg/m³
PM103.71 µg/m³
O382.87 µg/m³
NO22.29 µg/m³
SO20.96 µg/m³
CO122.36 µg/m³
NH31.12 µg/m³
NO0 µg/m³