Haiku, HI Weather Forecast
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Haiku Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY |
| Chance of Showers | Isolated Showers | Mostly Clear | Isolated Showers | Isolated Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Isolated Showers | Isolated Showers | Isolated Showers |
| Hi: 78°FHi: 26°C | Lo: 69°FLo: 21°C | Hi: 77°FHi: 25°C | Lo: 68°FLo: 20°C | Hi: 76°FHi: 24°C | Lo: 67°FLo: 19°C | Hi: 76°FHi: 24°C | Lo: 67°FLo: 19°C | Hi: 76°FHi: 24°C | |||
| POP: 50% | POP: 20% | POP: 40% | POP: 20% | POP: 40% | POP: 30% | POP: 40% | POP: 40% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 313 PM HST Tue Oct 06 2026 

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Issued: 729 PM HST Tue Oct 6 2026
Aviation
...
Light southerly winds expected through the forecast period due to a nearby surface trough. Increasing SHRA and a few isol TSTMs are possible through Thursday as the surface trough gets closer. IFR/MVFR conds likely within heavier SHRA or TSTMs. VFR prevails elsewhere.
No AIRMETs are in effect.
Fire Weather
... Issued at 314 PM HST Tue Oct 6 2026 Gentle to moderate breezy trades will continue a slow decline tonight, with humidity just above the critical threshold this afternoon. Fire weat...
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