Honolulu/ Weather & Environment

Soaked in Honolulu: Oahu Braces for Flash Floods Before Sunny Weekend Reprieve

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Published on October 08, 2026
Soaked in Honolulu: Oahu Braces for Flash Floods Before Sunny Weekend ReprieveSource: Google Street View

Rain and thunderstorms are expected across Oahu on Thursday, with rounds of heavy rain that could quickly overwhelm flood-prone roads, low-lying areas and streams. A Flood Watch remains in effect through Thursday afternoon.

Flood Watch Covers Oahu Through Thursday Afternoon

The National Weather Service in Honolulu says heavy showers and isolated thunderstorms will continue into the afternoon. The agency’s Flood Watch is scheduled to remain in effect until 6 p.m. Thursday.

Rainfall totals of three-quarters to 1 inch are possible through Thursday afternoon.

Weekend Outlook

Sunday looks sunny as well.

Flooding Could Develop Quickly

Residents should avoid driving through water-covered roads and stay alert for rapidly changing conditions, especially near streams and other flood-prone spots. The weather service advises monitoring later forecasts and being ready to act if Flash Flood Warnings are issued.