Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
358 AM EDT Sun Oct 26 2025

Valid 00Z Mon 27 Oct 2025 - 00Z Mon 03 Nov 2025

An upper low near Hawaii this weekend will weaken into next week 
as upper level ridging tries to build back in north or over the 
islands next week. Before this though, the upper low will will 
help bring deeper ITCZ moisture northward with some increased 
rainfall potential into early next week. Moderate to gusty 
easterly winds this weekend will weaken next week underneath this 
trough. Later next week, a cold front may try to swing southward 
towards the islands, but with uncertainty in the timing. This 
could bring some increased precipitation to especially the western
islands. The guidance shows good agreement on this overall 
pattern for the next week, but still with some uncertainty in the 
details which affect QPF distribution and amounts across the 
island chain.

Santorelli