Summer doesn't officially begin for another week and I don't know about your city, but already the D.C. area has been hit with oppressively high temperatures and weird bouts of heavy rain more commonly seen later in the season.
Although this is the first summer in 13 years that I haven't had to look out for the impact of heat and humidity on a dog as physically challenged by both as my Boston Terrier, I'm reminded that this change of seasons and temperature is a critical time to look out for the well-being of our pets.