Air Quality Forecast

Latest Forecast

For updated forecasts please visit NCDAQ's Air Quality Forecast Center

For national air quality forecasts, current conditions, and other information, please visit EPA's Air Now

Air Quality Index
Good
Moderate
Unhealthy for Sensitive Groups
Generally Unhealthy
Very Unhealthy

AQI Color Code Information

Air Quality Color Code Air Quality Index (AQI) AQI = 100 corresponds to EPA’s air quality standard Ozone Concentration (parts per million) PM2.5 Concentration (micrograms per cubic meter)
Good Green 0 to 50 0.0 to 0.059 0 to 15
Moderate Yellow 51 to 100 0.060 to 0.075 16 to 35
Unhealthy for Sensitive Groups Orange 101 to 150 0.076 to 0.095 36 to 65
Generally Unhealthy Red 151 to 200 0.096 to 0.115 66 to 150
Very Unhealthy Purple 201 to 300 0.116 to 0.374 151 and above

Air Quality Index Information

Air Quality Weather Conditions Recommended Action Health Effects
Good
  • Cool summer temperatures
  • Windy conditions
  • Significant cloud cover
  • Heavy or steady precipitation
  • Keep cars and boats tuned up
  • Use environmentally safe paints and cleaning products
  • Conserve electricity—Set A/C to highest comfortable level
  • No health effects are expected
Moderate
  • Temperature's in the upper 70's to lower 80's
  • Light to moderate winds
  • Partly cloudy or mostly sunny skies
  • Chance of rain or afternoon thunderstorms
  • Unusually sensitive people should consider limiting prolonged outdoor exertion
Unhealthy for Sensitive Groups
  • Temperatures in the 80's and 90's
  • Light winds
  • Mostly sunny skies
  • Slight chance of afternoon thunderstorms
  • Limit daytime driving
  • Limit vehicle idling
  • Refuel vehicles after dusk
  • Don't 'top off' your gas tank
  • Avoid congested periods
  • Use water-based paints
  • Use transit or car pool
  • Bike or walk for short trips
  • Use newest/best maintained car
  • Combine trips and share rides
  • Postpone using gasoline powered mowers
  • Barbecue without start fluid
  • Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
Generally Unhealthy
  • Hot, hazy, humid
  • Stagnant air
  • Sunny skies
  • Little chance of precipitation
  • Active children and adults, and people with respiratory disease such as asthma should avoid prolonged outdoor exertion; everyone else, especially children should limit prolonged outdoor exertion.
Very Unhealthy
  • Hot and very hazy
  • Extremely stagnant air
  • Sunny skies
  • No precipitation
  • Active children and adults, and people with respiratory disease such as asthma should avoid all outdoor exertion; everyone else, especially children should avoid prolonged outdoor exertion.

The weather conditions listed above are common weather types associated with the respective air quality levels. A combination of part or of all these weather conditions could lead to a certain level of observed air quality.