Washington, DC Air Quality

As of 11:20 PM
Air quality index43Good

Air quality is great — a good day to be outside.

Next 24 hours

US AQI
  1. 44Now
  2. 43
  3. 43
  4. 422 AM
  5. 41
  6. 41
  7. 405 AM
  8. 39
  9. 40
  10. 418 AM
  11. 41
  12. 44
  13. 4611 AM
  14. 49
  15. 51
  16. 532 PM
  17. 55
  18. 42
  19. 295 PM
  20. 16
  21. 25
  22. 348 PM
  23. 43
  24. 43

Air quality outlook

Worst hour each day
  • Today61Moderate
  • Fri 955Moderate
  • Sat 1063Moderate
  • Sun 11500Hazardous
  • Mon 1271Moderate

From our air-quality forecast models (GEOS-CF / GEFS aerosols). AQI uses the US EPA scale.

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About Washington weather

Washington is in District of Columbia, United States at 38.90°, -77.04°. Right now it’s 66° and mostly clear; today’s high is 79° with a 0% chance of rain.

Washington, DC has a humid subtropical climate shaped by its position between the Atlantic coast and the Appalachian foothills, where the Potomac and Anacostia rivers meet. The city sees four distinct seasons, with roughly 40 inches of precipitation spread fairly evenly through the year and an urban heat island that keeps the downtown core noticeably warmer than the surrounding suburbs on calm nights.