Depends, is it a tourney game? Cash game? Are you tipping?
That said, $15-$20/hr is pretty standard for a dealer for a tournament (at least here in Denver).
For a cash game, you need to be prepared to negotiate things like tips, etc. If you can guarantee fair tipping, you could potentially negotiate $5-$10/hr plus tips, or no hourly pay and tips only.
Learn from my mistakes... I had a dealer for a $1/$2 game I hosted last year. We paid him $10/hr with tips on top. At the end of the night he had almost $100 in his tip cup, on TOP of his hourly rate. For 5-6 hours, that worked out to about $25-$30/hour, which was excessive. Needless to say, this rubbed some of my guys the wrong way.
So, if I were to do a $1/$2 game again with a paid dealer, I'd argue for tips only, given that my crew tips well. If you're hiring a qualified dealer for a .25/.50 game, you may need to offer a small hourly wage plus tips.