And if you've had the weather we've had in Iowa this summer, you've had little to no relief from the heat. When the heat is particularly oppressive, the treadmill is a good option.
I've written in the past about how a treadmill is a great tool to help your discipline toward increasing your speed. However, making use of the treadmill to get some heat relief isn't such a bad idea either.
This post from Christine Luff on www.about.com tells how the treadmill will help you seek relief from heat.