Wainaku, HI Weather Forecast
Local 7-day forecast
Frequent Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Wainaku, HI in one place.
Frequent showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 79. Northeast wind around 9 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Local Weather Overview
This forecast page for Wainaku, HI is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 22, 2026 8:18 AM HST.
The active forecast window currently covers Sep 23 to Sep 28, 2026 for Wainaku, HI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 23 to Sep 28, 2026
- Latest sync
- Sep 22, 2026 8:18 AM HST
- Forecast office
- HFO
- Source
- NOAA / NWS
Daily Outlook
This Week in Wainaku
Wednesday looks like the warmest upcoming period in Wainaku at 79 degrees F.
Sunday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Friday at about 14 to 18 mph ESE.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 22, 2026 8:18 AM HST
- Coverage
- 7 days
- Time zone
- Pacific/Honolulu
- Forecast office
- HFO
- Radar station
- PHKM
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Frequent showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 72. East northeast wind around 8 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Frequent showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 78. East northeast wind 7 to 13 mph. Chance of precipitation is 100%. New rainfall amounts between 3 and 4 inches possible.
Frequent showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 71. East wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Frequent showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 79. East southeast wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Frequent showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 71. East southeast wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Frequent showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 78. East southeast wind 9 to 13 mph. Chance of precipitation is 80%.
Rain showers. Cloudy, with a low around 70. East southeast wind around 9 mph. Chance of precipitation is 80%.
Rain showers likely. Mostly sunny, with a high near 78. East wind around 8 mph. Chance of precipitation is 60%.
Rain showers likely. Partly cloudy, with a low around 69. Southeast wind around 6 mph. Chance of precipitation is 60%.
Scattered rain showers. Mostly sunny, with a high near 79. South southeast wind 3 to 8 mph. Chance of precipitation is 50%.
Rain showers likely. Partly cloudy, with a low around 70. South southeast wind around 3 mph. Chance of precipitation is 60%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Frequent Showers And Thunderstorms
|
79°F |
9 mph
NE
|
|
Wednesday Night
Sep 23
|
Frequent Showers And Thunderstorms
|
72°F |
8 mph
ENE
|
|
Thursday
Sep 24
|
Frequent Showers And Thunderstorms
|
78°F |
7 to 13 mph
ENE
|
|
Thursday Night
Sep 24
|
Frequent Showers And Thunderstorms
|
71°F |
14 mph
E
|
|
Friday
Sep 25
|
Frequent Showers And Thunderstorms
|
79°F |
14 to 18 mph
ESE
|
|
Friday Night
Sep 25
|
Frequent Showers And Thunderstorms
|
71°F |
13 to 18 mph
ESE
|
|
Saturday
Sep 26
|
Frequent Showers And Thunderstorms
|
78°F |
9 to 13 mph
ESE
|
|
Saturday Night
Sep 26
|
Rain Showers
|
70°F |
9 mph
ESE
|
|
Sunday
Sep 27
|
Rain Showers Likely
|
78°F |
8 mph
E
|
|
Sunday Night
Sep 27
|
Rain Showers Likely
|
69°F |
6 mph
SE
|
|
Monday
Sep 28
|
Scattered Rain Showers
|
79°F |
3 to 8 mph
SSE
|
|
Monday Night
Sep 28
|
Rain Showers Likely
|
70°F |
3 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Wainaku.
