Wahiawa, HI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wahiawa, a community in Honolulu County, Hawaii.
Overnight
73°F
Mostly Cloudy
Mostly cloudy, with a low around 73. East wind around 14 mph, with gusts as high as 18 mph.
7-day forecast for Wahiawa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Mostly Cloudy | 14 mph E | 14% |
| Saturday | 83°F | Partly Sunny | 21 mph E | 13% |
| Saturday Night | 73°F | Mostly Cloudy | 16 mph ENE | 7% |
| Sunday | 83°F | Partly Sunny | 16 mph ENE | 10% |
| Sunday Night | 72°F | Mostly Cloudy | 15 mph ENE | 13% |
| Monday | 83°F | Partly Sunny | 15 mph NE | 11% |
| Monday Night | 72°F | Scattered Rain Showers | 12 to 15 mph NE | 27% |
| Tuesday | 83°F | Isolated Rain Showers then Mostly Sunny | 13 mph ENE | 24% |
| Tuesday Night | 72°F | Scattered Rain Showers | 13 mph NE | 27% |
| Wednesday | 83°F | Scattered Rain Showers | 14 mph ENE | 25% |
| Wednesday Night | 72°F | Scattered Rain Showers | 13 mph NE | 30% |
| Thursday | 82°F | Scattered Rain Showers | 14 mph ENE | 28% |
| Thursday Night | 71°F | Isolated Rain Showers | 14 mph NE | 24% |
| Friday | 82°F | Isolated Rain Showers then Partly Sunny | 15 mph ENE | 22% |
Forecast source: National Weather Service (api.weather.gov) for Wahiawa (21.501, -158.018). Updated through the day.
Growing snapshot for Wahiawa
Growing season
365 days
More local growing data for Wahiawa: nearby ZIP 96786 weather · frost dates · planting calendar · Hawaii frost dates
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Climate data from the nearest NOAA station, Upper Wahiawa 874.3, Hi (2.7 mi from Wahiawa). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.