Wainaku, HI Weather Forecast

Local 7-day forecast

80°
F

Scattered Rain Showers then Partly Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Wainaku, HI in one place.

Monday, July 20, 2026
Wind: 2 to 6 mph NNW
Monday

Scattered rain showers before noon. Partly sunny, with a high near 80. North northwest wind 2 to 6 mph. Chance of precipitation is 40%.

Local 7-day forecast

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: Jul 19, 2026 1:56 AM HST.

The active forecast window currently covers Jul 20 to Jul 25, 2026 for Wainaku, HI.

Page Snapshot

Page focus
city weather
Forecast window
Jul 20 to Jul 25, 2026
Latest sync
Jul 19, 2026 1:56 AM HST
Forecast office
HFO
Source
NOAA / NWS
Next High
80°F
Monday
Next Low
69°F
Monday Night
Rain Outlook
11
Periods mentioning precipitation
Windiest
0 to 9 mph
Saturday

Daily Outlook

Today
Jul 20
Scattered Rain Showers then Partly Sunny
80 °F
/ 69°F
Wind 2 to 6 mph
Tue
Jul 21
Chance Rain Showers
80 °F
/ 69°F
Wind 2 to 6 mph
Wed
Jul 22
Chance Rain Showers then Partly Sunny
79 °F
/ 68°F
Wind 3 to 7 mph
Thu
Jul 23
Scattered Rain Showers then Partly Sunny
79 °F
/ 68°F
Wind 3 to 8 mph
Fri
Jul 24
Scattered Rain Showers then Partly Sunny
79 °F
/ 68°F
Wind 5 to 8 mph
Sat
Jul 25
Scattered Rain Showers then Partly Sunny
79 °F
Wind 0 to 9 mph

This Week in Wainaku

Monday looks like the warmest upcoming period in Wainaku at 80 degrees F.

Wednesday Night is the coolest period ahead with temperatures near 68 degrees F.

The strongest winds are forecast for Saturday at about 0 to 9 mph NNE.

Precipitation is mentioned in 11 upcoming forecast periods.

Forecast Details

Last updated
Jul 19, 2026 1:56 AM HST
Coverage
6 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 source

Extended Forecast

Monday Night
Jul 20
69°F
Chance Rain Showers
5 mph SW

A chance of rain showers. Mostly cloudy, with a low around 69. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

Tuesday
Jul 21
80°F
Chance Rain Showers
2 to 6 mph E

A chance of rain showers. Mostly cloudy, with a high near 80. East wind 2 to 6 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

Tuesday Night
Jul 21
69°F
Occasional Rain Showers
5 mph SE

Occasional rain showers. Cloudy, with a low around 69. Southeast wind around 5 mph. Chance of precipitation is 90%.

Wednesday
Jul 22
79°F
Chance Rain Showers then Partly Sunny
3 to 7 mph ESE

A chance of rain showers before noon. Partly sunny, with a high near 79. East southeast wind 3 to 7 mph. Chance of precipitation is 60%.

Wednesday Night
Jul 22
68°F
Scattered Rain Showers
6 mph NE

Scattered rain showers. Mostly cloudy, with a low around 68. Northeast wind around 6 mph. Chance of precipitation is 50%.

Thursday
Jul 23
79°F
Scattered Rain Showers then Partly Sunny
3 to 8 mph ENE

Scattered rain showers before noon. Partly sunny, with a high near 79. East northeast wind 3 to 8 mph. Chance of precipitation is 40%.

Thursday Night
Jul 23
68°F
Chance Rain Showers
7 mph N

A chance of rain showers. Mostly cloudy, with a low around 68. North wind around 7 mph. Chance of precipitation is 60%.

Friday
Jul 24
79°F
Scattered Rain Showers then Partly Sunny
5 to 8 mph NNE

Scattered rain showers before noon. Partly sunny, with a high near 79. North northeast wind 5 to 8 mph. Chance of precipitation is 50%.

Friday Night
Jul 24
68°F
Chance Rain Showers
0 to 8 mph NNE

A chance of rain showers. Mostly cloudy, with a low around 68. North northeast wind 0 to 8 mph. Chance of precipitation is 70%.

Saturday
Jul 25
79°F
Scattered Rain Showers then Partly Sunny
0 to 9 mph NNE

Scattered rain showers before noon. Partly sunny, with a high near 79. North northeast wind 0 to 9 mph. Chance of precipitation is 50%.

Detailed Forecast

Period Conditions Temp Wind
Monday
Jul 20
Scattered Rain Showers then Partly Sunny
80°F
2 to 6 mph
NNW
Monday Night
Jul 20
Chance Rain Showers
69°F
5 mph
SW
Tuesday
Jul 21
Chance Rain Showers
80°F
2 to 6 mph
E
Tuesday Night
Jul 21
Occasional Rain Showers
69°F
5 mph
SE
Wednesday
Jul 22
Chance Rain Showers then Partly Sunny
79°F
3 to 7 mph
ESE
Wednesday Night
Jul 22
Scattered Rain Showers
68°F
6 mph
NE
Thursday
Jul 23
Scattered Rain Showers then Partly Sunny
79°F
3 to 8 mph
ENE
Thursday Night
Jul 23
Chance Rain Showers
68°F
7 mph
N
Friday
Jul 24
Scattered Rain Showers then Partly Sunny
79°F
5 to 8 mph
NNE
Friday Night
Jul 24
Chance Rain Showers
68°F
0 to 8 mph
NNE
Saturday
Jul 25
Scattered Rain Showers then Partly Sunny
79°F
0 to 9 mph
NNE
Green Bay  Big Island '20432528184'
Green Bay Big Island '20432528184' image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.