Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
416 AM EDT Sun Jul 5 2026

Valid 00Z Mon 06 Jul 2026 - 00Z Mon 13 Jul 2026

Guidance continues to agree that broad surface high pressure will
remain in place to the north of the state with persistent 
moderate trade winds expected into next week. This will favor 
Upslope/Mauka showers each day. A plume of higher moisture 
associated with a tropical wave will reach the islands later next 
week/early next weekend bringing a brief increase in shower 
chances/rainfall before drier conditions return. Some gustier 
trade winds may accompany the wave as well. 

Putnam