I am going to be starting to train for either a half or full marathon. The problem I have is I live in the desert, it's hot...all the time, even in the early mornings it is in the mid-upper 80s to low 90s. So running outside is not ideal for me. I own a treadmill and I do most of my running on that.
I have read articles about using a treadmill for some of the training but not all of it. Most advise to use an incline of 1-2% to simulate wind resistance.
Are there any specific training plans that could be easily adjusted for treadmill training?
I am concerned that the treadmill won't get me race ready since I will not be training outside. Should I attempt to add some outside runs prior to race day?