Wainaku, HI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wainaku, a community in Hawaii County, Hawaii.
Tonight
71°F
Scattered Rain Showers
Scattered rain showers. Mostly cloudy, with a low around 71. East wind 3 to 7 mph. Chance of precipitation is 40%.
7-day forecast for Wainaku
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Scattered Rain Showers | 3 to 7 mph E | 42% |
| Saturday | 82°F | Isolated Rain Showers | 3 to 8 mph NNW | 22% |
| Saturday Night | 71°F | Isolated Rain Showers | 2 mph N | 17% |
| Sunday | 83°F | Partly Sunny | 8 mph NE | 13% |
| Sunday Night | 71°F | Scattered Rain Showers | 6 mph N | 44% |
| Monday | 83°F | Scattered Rain Showers | 7 mph N | 43% |
| Monday Night | 71°F | Chance Rain Showers | 5 mph NNW | 71% |
| Tuesday | 82°F | Chance Rain Showers | 5 mph NE | 66% |
| Tuesday Night | 71°F | Scattered Rain Showers | 2 mph N | 52% |
| Wednesday | 82°F | Scattered Rain Showers | 5 mph ENE | 47% |
| Wednesday Night | 71°F | Scattered Rain Showers | 2 mph NW | 54% |
| Thursday | 81°F | Scattered Rain Showers | 3 mph SSW | 52% |
| Thursday Night | 70°F | Scattered Rain Showers | 10 mph WSW | 44% |
| Friday | 81°F | Scattered Rain Showers | 10 to 14 mph ENE | 34% |
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 Sep 19, 2026.