Hi there Jennifer,
Welcome to planDisney and thanks so much for this question! It's always fun when work draws you in closer to the Disneyland Resort and you get the opportunity to sneak away for a little dose of the Magic.
According to the
Blockout Dates Calendar, the Imagine Key is not able to be used during June and July. Therefore, if you want to make an extra special trip during your conference, then you would need to purchase a
theme park ticket to enter the parks - and don't forget to also make a
theme park reservation as well. I have heard of some conferences in the Anaheim area that have special ticket offers through the conference website, so make sure to check for that as well to see if it's an option!
While summer visits can get pretty warm during the afternoons, summer evenings cool down a bit and are quite pleasant! Although, I live in Arizona, so take my opinion on the weather with a ray of sunshine and a grain of sand. Either way, it's still the Happiest Place on Earth and you'll get the opportunity to enjoy a few attractions and maybe even a churro.
Thanks again for your question, Jennifer! I hope you have a wonderful visit to the Disneyland Resort.
Have a Magical Day,
Greg