I did W3R2 today, for the first time it was under 20° and it did make running a bit easier. But starting Saturday our weatherman is threatening us with temps well over 30° until the middle of next week. Any tips for running in hot weather? How much of what to eat/drink, before/during/after the run? I'll go in the woods in the evenings but it's still going to be pretty warm, and I can't go in the early morning because my back needs a few hours to get going every day.