I am still sticking with my forecast of a major change to a summer pattern coming on the 9th of June. Then by the 16th or 17th, the leeward valley's will be in the upper 80's and low 90's, which is above the average temperature. It will, however, be a slow transition. This final storm of the winter will be very beneficial for the entire area and push back the fire season some 2-4 weeks, as many areas will receive 2-4 inches of rain. Here is a quick look at the regional radar at 1:00 pst today:
This moisture should push north and east through Tahoe.