Miz Bubba and I went out at 6:49 EST and watched the International Space Station go overhead. It was a clear (and cold) night and perfect conditions to view the Station. It is very visible (as a bright light, no details) and we could see it for about a minute to a minute and a half.
It was fun.
Here's the link: http://www11.jsc.nasa.gov/sightings/
Just look for the city nearest you and it will give you a schedule of days and times when you can see it from your location.