Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 314 AM EDT Sun Jun 8 2025 Valid 00Z Mon 09 Jun 2025 - 00Z Mon 16 Jun 2025 Early week upper ridging over Hawaii and surface high pressure well to the north will prevail keeping trade winds generally weak and typical light showers for windward facing slopes. An upper trough will drop in and establish to the west of the state by mid week allowing for an increase in trades and shifting to a more southeasterly direction. Breezy trade winds will continue through next weekend as surface high pressure fills in north of the state again. Santorelli