Harman US

Kapaa, HI Weather & Growing Conditions

Overnight
74°F
Scattered Rain Showers
Scattered rain showers. Mostly cloudy, with a low around 74. Northeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Overnight 74°F Scattered Rain Showers 5 mph NE 35%
Tuesday 86°F Scattered Rain Showers 5 to 9 mph NE 46%
Tuesday Night 74°F Chance Rain Showers 8 mph ENE 58%
Wednesday 85°F Chance Rain Showers 10 mph ENE 61%
Wednesday Night 74°F Scattered Rain Showers 7 to 10 mph ENE 52%
Thursday 86°F Chance Rain Showers 10 mph ENE 56%
Thursday Night 75°F Scattered Rain Showers 10 mph ENE 51%
Friday 86°F Scattered Rain Showers 12 mph ENE 43%
Friday Night 75°F Scattered Rain Showers 12 mph ENE 53%
Saturday 86°F Scattered Rain Showers 14 mph ENE 53%
Saturday Night 75°F Scattered Rain Showers 13 mph ENE 40%
Sunday 86°F Scattered Rain Showers 14 mph ENE 48%
Sunday Night 75°F Scattered Rain Showers 14 mph ENE 43%
Monday 87°F Scattered Rain Showers 13 mph ENE 43%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Kapaa, HI

Growing season
365 days

Explore more for Kapaa, HI: full frost dates · planting calendar · Hawaii frost dates

Climate data from the nearest NOAA station, Lihue Wso Ap 1020.1, Hi (7.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.