Question: how much water should you drink when exercising in the heat?
Answer: If you are exercising in hot weather, you should add even more. Space out your hydration. If you're exercising, drink 15-20 ounces of water one to two hours before you start your workout, another 8-10 ounces 15 minutes before you begin, and 8 ounces every 15 minutes for the entire duration of your exercise.