Kapaa, HI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kapaa, a community in Kauai County, Hawaii.
Today
87°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a high near 87. Heat index values as high as 95. East northeast wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Kapaa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Chance Rain Showers | 14 mph ENE | 73% |
| Tonight | 76°F | Scattered Rain Showers | 7 to 12 mph ENE | 33% |
| Saturday | 86°F | Scattered Rain Showers | 7 to 15 mph ENE | 43% |
| Saturday Night | 76°F | Scattered Rain Showers | 15 mph E | 32% |
| Sunday | 86°F | Scattered Rain Showers | 15 mph ENE | 28% |
| Sunday Night | 75°F | Scattered Rain Showers | 14 mph ENE | 29% |
| Monday | 87°F | Scattered Rain Showers | 14 mph ENE | 31% |
| Monday Night | 75°F | Scattered Rain Showers | 12 mph ENE | 32% |
| Tuesday | 87°F | Scattered Rain Showers | 10 mph ENE | 39% |
| Tuesday Night | 75°F | Scattered Rain Showers | 12 mph ENE | 49% |
| Wednesday | 86°F | Scattered Rain Showers | 13 mph ENE | 45% |
| Wednesday Night | 75°F | Scattered Rain Showers | 13 mph NE | 40% |
| Thursday | 86°F | Scattered Rain Showers | 13 mph NE | 50% |
| Thursday Night | 75°F | Scattered Rain Showers | 14 mph ENE | 43% |
Forecast source: National Weather Service (api.weather.gov) for Kapaa (22.088, -159.352). Updated through the day.
Growing snapshot for Kapaa
Growing season
365 days
More local growing data for Kapaa: nearby ZIP 96746 weather · frost dates · planting calendar · Hawaii frost dates
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Climate data from the nearest NOAA station, Lihue Wso Ap 1020.1, Hi (7.6 mi from Kapaa). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.