As I write this, I am sipping nuun enhanced water - it is kind of warm outside. You comments about listening to your body, etc are quite appropriate.
I would add - adjust your schedule. Be an early riser and get going pre dawn. You have until about 9 AM before it really heats up. In our SW deserts, it is often surprisingly chilly early in the morning - and delightful!!. There is a reason for midday siestas, with resumption of work toward evening.
if it is really hot, do all your hiking and heavy work after the sun sets.
I favor a cotton full brim hat, dripping wet, and renewed as often as possible. Wetting you shirt works as well.
When it is really hot, I can easily drink a gallon a day, besides liquid in fruits, etc. Ration sweat, not water. Slow down if you have to and learn to recognize the symptoms of dehydration.
one or more gifts or other benefits from the co-op.