Today | Weather | Thursday, May 21, 2026

Weather in Alexandria, Virginia

11:19 AM
Now
Cloudy Weather
64° F
Feels Like 64°
Precipitation 20 %
Wind 9 mph
UV Index (0 - 11+) 2
Humidity 76 %
Today
Rainy Weather
Day 66°
Night 55°
Precipitation 88 %
Wind 8 mph
UV Index (0 - 11+) 2

Alexandria Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (May 21, 2025)
Rainy Weather

Day

61°

Night

57°

Wind

12 mph

UV Index

2

Precipitation

100 %

Air Quality in Alexandria

NOW
22 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 5.39 µg/m³
PM10 6.22 µg/m³
O3 0.016 ppm
NO2 4.1 ppb
SO2 0.6 ppb
CO 0.15 ppm
NH3 0.52 µg/m³
NO 0.86 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)
PM2.55.39 µg/m³
PM106.22 µg/m³
O332.08 µg/m³
NO27.69 µg/m³
SO21.56 µg/m³
CO169.96 µg/m³
NH30.52 µg/m³
NO0.86 µg/m³