Best comment today while on my 7 mile morning run in the 28 degree snow:
"ARE YOU CRAZY?!"
To which I respond: "A little bit! Have a good morning!"
If you let your mind convince you the weather will stop you from running, remember this: if it's snowing, you can always add more layers and put on some pants; if it's hot, around 6am or 7pm, it's not.