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Wainaku, HI Weather & Growing Conditions

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

Overnight
69°F
Scattered Rain Showers
Scattered rain showers. Mostly cloudy, with a low around 69. West southwest wind around 3 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Wainaku

WhenTempForecastWindPrecip
Overnight 69°F Scattered Rain Showers 3 mph WSW 45%
Tuesday 83°F Scattered Rain Showers 2 to 7 mph SE 45%
Tuesday Night 69°F Scattered Rain Showers 1 to 6 mph E 54%
Wednesday 82°F Scattered Rain Showers 1 to 6 mph NE 44%
Wednesday Night 69°F Chance Rain Showers 2 mph N 68%
Thursday 82°F Chance Rain Showers 1 to 8 mph ENE 66%
Thursday Night 69°F Chance Rain Showers 3 mph N 71%
Friday 83°F Chance Rain Showers 1 to 6 mph NNE 58%
Friday Night 69°F Chance Rain Showers 0 to 3 mph NE 71%
Saturday 83°F Rain Showers 1 to 7 mph NE 81%
Saturday Night 70°F Chance Rain Showers 2 mph ESE 62%
Sunday 83°F Occasional Rain Showers 1 to 8 mph SE 79%
Sunday Night 70°F Scattered Rain Showers 3 mph ESE 49%
Monday 83°F Occasional Rain Showers 2 to 9 mph ENE 78%

Forecast source: National Weather Service (api.weather.gov) for Wainaku (19.744, -155.100). Updated through the day.

Growing snapshot for Wainaku

Growing season
365 days

More local growing data for Wainaku: nearby ZIP 96783 weather · frost dates · planting calendar · Hawaii frost dates

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Climate data from the nearest NOAA station, Hilo Intl Ap, Hi (9.2 mi from Wainaku). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.