Great Haiku everyone! Sorry it took a while for me to get back; time zones are funny-when I'm asleep, others are awake.

I intentionally didn't mention about the last word/letter being the next one's starter because i wanted to leave more freedom, but if you want to use the last word/letter to start your next one- go ahead. Only the theme is constant - 'Summer'

Here's another-

brooding heat,
the sun's weight crushes;
tempers fray