Date: July 16, 2019

Mainly cloudy with 60 percent chance of showers. Risk of a thunderstorm this afternoon. Wind southwest 20 km/h gusting to 40. High 29. Humidex 37. UV index 7 or high.


Feels like 36C

Environment Canada
Text Size >   A   A   A

Printer Friendly


This page was reviewed or revised on Thursday, October 25, 2018 4:31 PM

With cannabis legalization on October 17, 2018, the Ontario Government will provide rules that keep cannabis out of the hands of children and youth, and keep our roads safe. Ontario will have laws in place about how, where and who can buy and possess cannabis in the province.

The use of any drug has potential health impacts. Learn more about the drug, how it can impact others, and the risks involved. Tips to help manage risk:

  • Anyone who consumes cannabis should follow Canada's Lower-Risk Cannabis Use Guidelines and consult with their healthcare provider.
  • Don't drive after using cannabis.
  • Avoid cannabis use altogether if you are at risk for mental health problems or are pregnant.
  • Learn more about cannabis and how to support conversations with youth by attending the event: Talking Pot with Youth


Youth and Young Adults

  • To avoid all risks, do not use cannabis.
  • If you choose to use as an adult, consider delaying cannabis use until age 25 or older.
    • Using cannabis at a young age increases the likelihood of developing health, educational and social problems.
    • Cannabis use can affect brain development and functioning in areas that are important for cognitive and emotional processes.



  • Using cannabis while parenting or caring for others can affect how you interact with people. It lowers your ability to judge, make good decisions and attend to their cues and needs.
  • Avoid smoking or vapourizing cannabis indoors or around children. Safely store cannabis products away from children and pets.
  • To help prevent or delay the use of cannabis among adolescents, parents are encouraged to have open, honest and informed discussions about the risks of drug use.


Pregnant Women

Using cannabis during your pregnancy may result in your baby having a lower birth weight and may harm your child’s brain development.

The substance in cannabis responsible for the “high”, is found in the breastmilk of women who smoke cannabis. If using cannabis affects your mind and body, it may also affect your child’s mind and body.

Source: Cannabis Evidence Brief - Is cannabis safe during preconception, pregnancy and breastfeeding?