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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.