Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 454 AM EDT Tue Sep 30 2025 Valid 00Z Wed 01 Oct 2025 - 00Z Wed 08 Oct 2025 Tradewinds will gradually reduce across the region as the sub- tropical high weakens. Drier air present will limit rainfall; however a band of clouds and showers is expected for Wednesday afternoon and into the overnight hours primarily for windward locations. Flow will become southeast and more moist as a low pressure system approaches well to the north of the state by the end of the week, reducing once again at the close of the weekend. Campbell