Water Heaters - Is there something wrong with my hot water heater

I have family for the summer and I suspect my hot water heater isn't working quite right. I am suspicious that there is not enough hot water. We have a 50 gallon electric unit. I checked for continuity at both heating elements. I also have voltage at both elements. I turned off the heater and drained it to clean and noticed the water at the bottom wasn't hot. Is it normal for the water at the bottom to be cool or lukewarm?

I'm not a plumber or electrician. The cold water enters at the top, goes down an internal tube to the bottom, to be heated. While you are waiting for a complete answer, here are some good tests for thermos and elements:

How to Test a Water Heater Thermostat - wikiHow (http://www.wikihow.com/Test-a-Water-Heater-Thermostat) Be safe, G

it depends on if you had recently used hot water or if you have a hot water leak. if either of those are the case then yes. if not then you have a problem with the way the heater is working