Across all of Arizona, dewpoints continue below average. They aren’t extremely below average, but they aren’t close to monsoon levels. This doesn’t bode well for an early start to the monsoon season. As you can see from my dewpoint chart on the right, they haven’t budged in days. The chart below is from the Monsoon Tracker at the National Weather Service in Tucson.
The National Weather Service in Flagstaff has 30% chances of thunderstorms starting tomorrow and continuing through the week. Weather Underground has episodes of storms and sun for the week. Accuweather has pushed any rain until the 4th of July. Given the low dewpoint temperatures, the 4th of July may make the most sense. Of course, we could get a surge of moisture.