Waikapu, HI Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Waikapu, HI in one place.
Mostly cloudy, with a high near 82. North northeast wind around 13 mph.
Local Weather Overview
This forecast page for Waikapu, 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 4:01 AM HST.
The active forecast window currently covers Sep 23 to Sep 28, 2026 for Waikapu, HI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 23 to Sep 28, 2026
- Latest sync
- Sep 22, 2026 4:01 AM HST
- Forecast office
- HFO
- Source
- NOAA / NWS
Daily Outlook
This Week in Waikapū
Wednesday looks like the warmest upcoming period in Waikapū at 82 degrees F.
Thursday Night is the coolest period ahead with temperatures near 71 degrees F.
The strongest winds are forecast for Friday at about 18 to 22 mph NNE.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 22, 2026 4:01 AM HST
- Coverage
- 6 days
- Time zone
- Pacific/Honolulu
- Forecast office
- HFO
- Radar station
- PHMO
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Isolated showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 72. North northeast wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
Scattered rain showers. Mostly cloudy, with a high near 81. North northeast wind around 16 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.
Isolated showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 71. North northeast wind around 18 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Isolated rain showers. Mostly cloudy, with a high near 81. North northeast wind 18 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Mostly cloudy, with a low around 72. North northeast wind 17 to 22 mph, with gusts as high as 31 mph.
Mostly sunny, with a high near 81. North northeast wind around 18 mph, with gusts as high as 25 mph.
Partly cloudy, with a low around 71. North northeast wind 13 to 18 mph, with gusts as high as 25 mph.
Sunny, with a high near 81. Northeast wind around 13 mph.
Mostly clear, with a low around 71. Northeast wind around 13 mph.
Mostly sunny, with a high near 81. North northeast wind around 12 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Mostly Cloudy
|
82°F |
13 mph
NNE
|
|
Wednesday Night
Sep 23
|
Isolated Showers And Thunderstorms
|
72°F |
14 mph
NNE
|
|
Thursday
Sep 24
|
Scattered Rain Showers
|
81°F |
16 mph
NNE
|
|
Thursday Night
Sep 24
|
Isolated Showers And Thunderstorms
|
71°F |
18 mph
NNE
|
|
Friday
Sep 25
|
Isolated Rain Showers
|
81°F |
18 to 22 mph
NNE
|
|
Friday Night
Sep 25
|
Mostly Cloudy
|
72°F |
17 to 22 mph
NNE
|
|
Saturday
Sep 26
|
Mostly Sunny
|
81°F |
18 mph
NNE
|
|
Saturday Night
Sep 26
|
Partly Cloudy
|
71°F |
13 to 18 mph
NNE
|
|
Sunday
Sep 27
|
Sunny
|
81°F |
13 mph
NE
|
|
Sunday Night
Sep 27
|
Mostly Clear
|
71°F |
13 mph
NE
|
|
Monday
Sep 28
|
Mostly Sunny
|
81°F |
12 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Waikapū.