Weatherspark is a site with great graphs to let you can see how the temperature changes throughout the day. Having a picnic at 4:00 p.m.? You'll be able to see what the temperature will be then, cloud cover and even the chance of rain at that time.Just enter your location and all the weather information you need and more will be provided for the day in easy to read graphs.
This is the best weather website that I've ever seen!
Enjoy!
http://weatherspark.com
