Hawaii County Weather Forecast for October 19, 2025
A locally breezy and slightly unstable trade wind flow will ease slightly late Sunday through Tuesday.
Showers will be focused along windward areas, though...
Tonight:
- Numerous showers in the evening, then occasional showers after midnight.
- Lows 65 to 71 near the shore to 52 to 58 at 4000 feet.
- Chance of rain near 100 percent.
Tomorrow:
- Occasional showers in the morning, then numerous showers in the afternoon.
- Highs 80 to 87 near the shore to around 68 at 4000 feet.
Sunday:
- Sunny with isolated showers in the morning, then mostly cloudy with scattered showers and isolated thunderstorms in the afternoon.
- Highs 84 to 89 near the shore to around 68 near 5000 feet.
Author summary: Forecast for Hawaii County on October 19, 2025.