Discounts offered in June vary. We have everything from 35% room, buy 4 get 3 free to
free dining with pin. Early February is when I usually find the discounts for June. Temps are typically low to mid 90's early June may even have some mid to high 80's. You will probably have a pop up storm a few days of your trip and although sometimes they last a couple of hours they usually stop by the time you get off your next ride. Crowds are pretty heavy but we just got back from a mid June trip and the crowds were lower than when we have been there late May to early June. The crowd calendar for our trip was 5-7. The lines app through touringplans.com helped us a lot. We used that and never waited more than 20 min in line. If a ride had a wait longer than that we would check back later and the wait would be shorter and we would go then. We also stuck to the general rule of thumb of hitting the headliners early in the day.
SWW is a blast! We usually spend one afternoon for that. Since we know the crowds will be insane we know we aren't there for rides during that time so we don't waste a morning on it. Surprisingly star tours had a 10 min wait when we were there for SWW. You have to go to Hyperspace Hoopla at 7pm on SWW, it's hysterical and a lot of fun!
You can search for posts and threads for June. Sometimes it takes me on a wild goose chase, but other times I find what I am looking for. Maybe someone else will have more advice on that.
Enjoy joining the June crowd!
BTW-our last trip was our most relaxing and enjoyable one yet and we have been in Feb. as well. There are ways around the crowds. We also stayed at POFQ which had no crowds at all. No waiting for food, etc.

What discounts are typically offered?
When are they typically announced?
How are temps?
How are crowds?
Is SWW worth the crowds? (Two die hard SW fans in our family.)
How can I search for June related posts?