Forecasters say the weather over the islands should improve through Monday as a storm system that brought locally heavy showers and muggy conditions Saturday slowly moves away from the state.

The National Weather Service forecast calls for a gradual return of trade winds and for sunnier skies through the upcoming work week.

However, the chance of rain, especially in windward and mauka areas, remains in the forecast today.

Saturday saw flood advisories and locally heavy rain over the airport, Halawa, Pearl City, Waipahu and the Koolau mountains.

Roads also flooded in Waimea on Hawaii island.

Rainfall observations show the heaviest rain fell over Manoa in the 24 hours ending at 5 a.m.

The Lyon Arboretum recorded 2.3 inches. Poamoho saw 2.1 inches; 1.5 inches fell in Makaha and Moanalua saw 1.2 inches.

Nearly 3 inches fell in Puu Kukui in upcountry and leeward Maui. Hawaii island saw 2.6 inches in Kawainui Stream and 1.2 inches in Kamuela.