Still looking like a couple of pokes of cool air in the last ten days of April, no rain indicated with them, just wind.
Some sprinkles maybe on Friday or Saturday from mid-level clouds like Altostratus or large clumps of Altocumulus with virga, some of the latter likely large enough to transition in name from Altocumulus (castellanus) to Cumulonimbus clouds. As with the last sprinkle a few days ago, any rain will be from clouds whose bottoms are well above Ms. Mt. Lemmon.
A great sunrise/sunset or two is almost guaranteed on Friday and or Saturday. This cloud action due to a weak wave/trough in the subtropics that creeps toward Arizona in the next few days. You can see it now in the sat imagery from the Washington Huskies Weather Department here. Its that little thing spinning around in this loop east of Hawaii with a big plume of high and middle clouds streaming NE from the Equator toward the West Coast to the east of the upper low. Expecting nothing more than passing Cirrus before Friday.