When bike touring, sometimes the weather is perfect. But usually it's not. In the extreme the weather can sometimes be too hot or too cold, too wet or too dry. So what do you do when the weather is less than perfect when out bike touring? If it is too wet or cold, do you know how to prevent Hypothermia? If it is too hot or too dry, do you know how to prevent Dehydration and Heat Stroke (also known as Heat Exhaustion or Hyperthermia)?