The weather is forecast to remain hot and humid through the week, while additional showers were expected to affect Kauai through Tuesday night, according to National Weather Service officials.
The heat index for Honolulu, which factors in air temperature and humidity to reflect what it really feels like outside, was expected to hit 95 degrees at 1 p.m. Tuesday, as well as this afternoon.
A flash flood watch, meanwhile, remained in effect for Niihau and Kauai through late Tuesday night because of deep tropical moisture ahead of an approaching low-pressure trough that will raise the potential for heavy rainfall, thunderstorms and flash flooding.
During the next few days, low pressure northwest of Kauai will lift northeast, dragging a trough slowly eastward toward the islands, weather officials said, and bringing muggy conditions across the isles for most of the week.
A more typical trade wind pattern should return by Thursday night or Friday, with breezy trades returning for the weekend.