Hey Duane, I'm thinking you are already on this, but it is supposed to get cold; snow level in San Diego is supposed to drop to 1500 ft and that doesn't happen very often.

Katie, you might want to plan a few extra days around Bishop before you go up to 14k. You could camp in the White mountains or in the east side of the Sierra for 2 to 3 days to acclimatize. If you can spend the time, White mountian is an easy summit except for the fact that it is a mere 250 ft shorter than Whitney. A good altitude shakedown hike.