The influence of an upper lvl low ENE of the islands continues to diminish as the low moves further away from the area, allowing for the air mass to be become more stable.
A weak subtropical ridge about 380 miles N of Kauai is keeping light to moderate trade winds across the island chain. Latest model guidance weaken this ridge during the next day couple of days, which allows for sea breezes and land breeze circulations to develop each day. This will combine with abundant lingering moisture over the islands for some afternoon and evening cloudiness/showers to develop, mainly over interior and leeward areas of the smaller islands, with some clearing at night with land breezes.
Models also show a moderately strong shortwave dropping S towards the islands and bringing a brief impulse of energy that could produce some isolated thundershowers over the coastal waters at night, and a few afternoon thundershowers mainly over the E half of the island chain on Sunday.
The aforementioned sfc ridge will intensify early next week and bring back stronger trades across the main Hawaiian islands. An upper lvl ridge will also build over the area from the W, helping in keeping a generally stable atmosphere over the islands through the second half of next week.