Hawaii County Weather Forecast for October 17, 2025 | Big Island Now

Hawaii County Weather Forecast for October 17, 2025

A relatively unstable moderate to locally breezy trade wind weather pattern will continue into Saturday.

An upper low centered just NW of Kauai, along with other factors, will influence the weather.

Tonight:

Friday:

Forecast:

Friday Night:

Author's summary: Unstable weather pattern expected.

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Big Island Now Big Island Now — 2025-10-17

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