An EPA air quality forecast tells you what the air quality is likely to be in the next 24 hours.

We use five categories in our forecasts:

  • good
  • moderate
  • poor
  • very poor
  • hazardous.

You can use our air quality forecasts to help plan your day. For example, if the forecast is for poor air quality, you might choose not to exercise outside. This can reduce your exposure to air pollution and help protect your health.

We forecast air quality for:

  • Melbourne
  • Geelong
  • Latrobe Valley.

These forecasts are on our website from around midnight each day.

We use a large amount of information to produce our forecasts, including:

  • data from our air monitoring network
  • satellite images
  • weather forecasts and reports
  • media reports
  • a forecasting model
  • updates about any fires or incidents causing smoke.

Read more about monitoring and forecasting air pollution

About EPA AirWatch

Air quality categories

Calculating air quality categories

People sensitive to air pollution

Accreditation of EPA air quality monitoring

Reviewed 28 October 2019