Cambridge, MA Air Quality

As of 10:31 PM
Air quality index44Good

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

Next 24 hours

US AQI
  1. 43Now
  2. 44
  3. 45
  4. 461 AM
  5. 48
  6. 49
  7. 494 AM
  8. 49
  9. 49
  10. 487 AM
  11. 48
  12. 47
  13. 4810 AM
  14. 48
  15. 49
  16. 491 PM
  17. 49
  18. 49
  19. 484 PM
  20. 48
  21. 47
  22. 467 PM
  23. 44
  24. 43

Air quality outlook

Worst hour each day
  • Today47Good
  • Thu 849Good
  • Fri 945Good
  • Sat 1041Good
  • Sun 1155Moderate

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

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About Cambridge weather

Cambridge is in Middlesex County, Massachusetts, United States at 42.38°, -71.11°. Right now it’s 56° and mostly clear; today’s high is 66° with a 0% chance of rain.

Massachusetts has a humid continental climate with cold winters and warm, humid summers. The state's position along the Atlantic coast means it is frequently affected by coastal storms and weather patterns from the ocean. Boston averages about 44 inches of rain and 49 inches of snow per year, though individual winters can vary enormously in snowfall totals.

More Massachusetts cities