Ko Olina, HI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Ko Olina, a community in Honolulu County, Hawaii.

This Afternoon

89°F

Isolated Rain Showers

Isolated rain showers. Mostly sunny, with a high near 89. Heat index values as high as 96. East wind around 22 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

7-day forecast for Ko Olina

When	Temp	Forecast	Wind	Precip
This Afternoon	89°F	Isolated Rain Showers	22 mph E	15%
Tonight	78°F	Mostly Cloudy	16 to 20 mph E	0%
Saturday	88°F	Mostly Cloudy	15 to 23 mph ENE	4%
Saturday Night	78°F	Mostly Cloudy	15 mph ENE	3%
Sunday	88°F	Partly Sunny	15 mph ENE	4%
Sunday Night	77°F	Mostly Cloudy	13 mph ENE	3%
Monday	88°F	Mostly Sunny	14 mph ENE	4%
Monday Night	77°F	Partly Cloudy	8 to 12 mph ENE	5%
Tuesday	88°F	Partly Sunny	12 mph ENE	7%
Tuesday Night	77°F	Partly Cloudy	12 mph ENE	14%
Wednesday	88°F	Mostly Sunny	12 mph NE	10%
Wednesday Night	77°F	Mostly Cloudy	8 to 12 mph NE	11%
Thursday	87°F	Mostly Sunny	8 to 12 mph ENE	13%
Thursday Night	77°F	Partly Cloudy	10 to 16 mph NE	12%

Forecast source: National Weather Service (api.weather.gov) for Ko Olina (21.338, -158.119). Updated through the day.

Growing snapshot for Ko Olina

Growing season

365 days

More local growing data for Ko Olina: nearby ZIP 96707 weather · frost dates · planting calendar · Hawaii frost dates

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Climate data from the nearest NOAA station, Puu Manawahua 725.6, Hi (2.7 mi from Ko Olina). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.