Just wanting to wish everyone a very safe and happy Canada Day! I hope that the day will be enjoyed to an optimum extent!

The weather should generally be pleasant through Ontario and Quebec, although a developing upper level trough will enhance instability for the mid afternoon-early evening period, generating a few isolated to scattered convective showers (as well as a few isolated non-severe thunderstorms) during that time frame. More details can be found here (sixth post, second section):

http://www.montreal-fireworks.com/forum/index.php?action=vthread&forum =5&topic=2614

Have a great one.

Edit: And welcome to the warmest month of the year.

Trav.