Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 346 AM EDT Tue Jun 24 2025 Valid 00Z Wed 25 Jun 2025 - 00Z Wed 02 Jul 2025 Easterly trade winds will gradually decrease over the next couple of days as the surface high centered northeast of Hawaii weakens. Generally moderate winds are forecast to last through the weekend into early next week. Meanwhile aloft, a weak upper trough will retrograde across the state and may allow for a raised inversion while waves of higher moisture move through. This should lead to a comparatively wetter trade wind pattern through much of the week, especially for Kauai and vicinity where enhanced moisture lingers the longest. By the weekend a mid/upper high may sneak into at least the eastern islands and suppress any widespread showers, but some passing windward and mauka showers remain possible this weekend into early next week. Tate