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Kapaa Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT |
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| Isolated Showers | Thunderstorms | Thunderstorms | Chance of Showers | Scattered Showers | Isolated Showers | Isolated Showers | Isolated Showers | Isolated Showers | Isolated Showers | Isolated Showers | Isolated Showers |
| Hi: 82°FHi: 28°C | Lo: 71°FLo: 22°C | Hi: 82°FHi: 28°C | Lo: 73°FLo: 23°C | Hi: 84°FHi: 29°C | Lo: 73°FLo: 23°C | Hi: 83°FHi: 28°C | Lo: 72°FLo: 22°C | Hi: 83°FHi: 28°C | Lo: 72°FLo: 22°C | Hi: 82°FHi: 28°C | Lo: 72°FLo: 22°C |
| POP: 50% | POP: 100% | POP: 100% | POP: 50% | POP: 30% | POP: 20% | POP: 20% | POP: 20% | POP: 20% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 304 AM HST Wed Oct 07 2026 
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Issued: 436 AM HST Wed Oct 7 2026
Discussion
... Stable and light ESE flow prevails beneath an inversion averaging about 7.5kft over the islands at press time this morning. Winds will continue veering through today becoming SSE by this evening. This is occurring in response to an approaching mid-level trough presently approaching Kauai from the NW. At this time, a frontal wave is developing in advance of this trough while frequent thunderstorms are noted in the base of the trough where 700-500mb lapse rates are firmly in excess o...