Wainaku, HI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wainaku, a community in Hawaii County, Hawaii.
Tonight
67°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 67. Northwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Wainaku
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Chance Rain Showers | 5 mph NW | 74% |
| Wednesday | 82°F | Occasional Rain Showers | 1 to 5 mph N | 91% |
| Wednesday Night | 68°F | Occasional Rain Showers | 5 mph ENE | 82% |
| Thursday | 82°F | Scattered Rain Showers then Partly Sunny | 3 to 7 mph NE | 29% |
| Thursday Night | 68°F | Chance Rain Showers | 5 mph NNE | 69% |
| Friday | 82°F | Chance Rain Showers | 7 mph NE | 71% |
| Friday Night | 69°F | Chance Rain Showers | 8 mph NE | 61% |
| Saturday | 81°F | Scattered Rain Showers | 6 to 9 mph NE | 36% |
| Saturday Night | 68°F | Scattered Rain Showers | 6 mph NW | 51% |
| Sunday | 81°F | Scattered Rain Showers | 3 to 8 mph NNE | 42% |
| Sunday Night | 67°F | Scattered Rain Showers | 3 to 7 mph NE | 49% |
| Monday | 81°F | Scattered Rain Showers | 3 to 8 mph ENE | 41% |
| Monday Night | 66°F | Scattered Rain Showers | 5 mph NE | 44% |
| Tuesday | 82°F | Scattered Rain Showers | 3 to 10 mph NE | 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
Nearby towns & communities
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Halaula
Hawaiian Acres
Hawaiian Beaches
Hawaiian Ocean View
Hawaiian Paradise Park
Hawi
Hilo
Holualoa
Honalo
Honaunau-Napoopoo
Honokaa
Honomu
Kahaluu-Keauhou
Kailua
Kaiminani
Kalapana
Kaloko
Kamaili
Kapaau
Keaau
Kealakekua
Kukuihaele
Kurtistown
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 Nov 4, 2026.