Weather forecast for 10 daysWaialua, HI

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 84°F
  • 73°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 12%
  • Precipitation: 0.04"
  • Wind: 16mphENE 68°
  • Humidity: 67%
  • UV index: 10
  • Sunrise: 6:29 am HST
  • Sunset: 6:05 pm HST
  • ▼
Today, in Waialua, expect brilliant sunshine under mostly clear skies.
Minimal precipitation is expected. The maximum temperature will be a moderately hot 84.2°F, while the minimum anticipated temperature is a warm 73.4°F.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is calculated to be a tropical 89.6°F. Note that heat index values are valued for light wind and location in the shade.
Today, the anticipated high will correspond with the regular October temperature of 81.1°F.
Sunrise will be at 6:29 am and sunset at 6:05 pm; the daylight will last for 11h and 36min.

10-day overview

Daily temperatures

Maximum temperature: 84°C.
Minimum temperature: 82°C.

Chance of precipitation

Highest chance: Tuesday 27.10. 21%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 84°F
  • 73°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 12%
  • Precipitation: 0.04"
  • Wind: 16mphENE 68°
  • Humidity: 67%
  • UV index: 10
  • Sunrise: 6:29 am HST
  • Sunset: 6:05 pm HST
  • ▼
  • Monday
  • Oct 19, 2026
  • 84°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 16mphENE 70°
  • Humidity: 69%
  • UV index: 10
  • Sunrise: 6:30 am HST
  • Sunset: 6:04 pm HST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 84°F
  • 73°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 16mphENE 70°
  • Humidity: 65%
  • UV index: 10
  • Sunrise: 6:30 am HST
  • Sunset: 6:03 pm HST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 82°F
  • 72°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 12mphENE 69°
  • Humidity: 66%
  • UV index: 9
  • Sunrise: 6:30 am HST
  • Sunset: 6:03 pm HST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 84°F
  • 73°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 7mphENE 67°
  • Humidity: 67%
  • UV index: 9
  • Sunrise: 6:31 am HST
  • Sunset: 6:02 pm HST
  • ▼
  • Friday
  • Oct 23, 2026
  • 84°F
  • 75°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphNE 55°
  • Humidity: 69%
  • UV index: 9
  • Sunrise: 6:31 am HST
  • Sunset: 6:01 pm HST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 82°F
  • 73°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 10mphNE 49°
  • Humidity: 71%
  • UV index: 7
  • Sunrise: 6:32 am HST
  • Sunset: 6:01 pm HST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 82°F
  • 75°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 12mphNE 51°
  • Humidity: 70%
  • UV index: 8
  • Sunrise: 6:32 am HST
  • Sunset: 6:00 pm HST
  • ▼
  • Monday
  • Oct 26, 2026
  • 82°F
  • 75°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 11mphENE 66°
  • Humidity: 71%
  • UV index: 8
  • Sunrise: 6:33 am HST
  • Sunset: 5:59 pm HST
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 82°F
  • 75°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 11mphENE 74°
  • Humidity: 73%
  • UV index: 7
  • Sunrise: 6:33 am HST
  • Sunset: 5:59 pm HST
  • ▼
For the next ten days, a combination of overcast and mostly clear weather is predicted.
With a probability of 12%, rainfall is expected only today. Anticipated precipitation will be minimal at 0.04".
Fluctuations in temperature will be barely perceptible in the upcoming days. The maximum temperature will vary between 82.4°F and 84.2°F, while the nighttime low will be also mostly stable, as night temperatures will lie between 71.6°F and 75.2°F.
With a maximum temperature of 84.2°F, Sunday through Tuesday, Thursday and Friday will be the hottest days in Waialua; the rest of the days are expected to have a maximum temperature of 82.4°F.
Taking the humidity into consideration, the maximum feel-like temperature may increase and range between a humid 86°F and a blazing 91.4°F.
Updated: Oct 18, 2026 @ 11:23:27 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, bright conditions and mild breezes are expected.

Today, there is a low probability of minimal rainfall in Waialua.

Today, the highest temperature will be 84.2°F, while the lowest temperature will be 73.4°F. The maximum heat index, which represents the influence of relative humidity on air temperature, is assessed at 89.6°F.
Today, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature today will be also in line with the average low temperature.

On Sunday, in Waialua, sunrise will be at 6:29 am and sunset at 6:05 pm (HST).

In Waialua, the length of the day today will be 11h and 36min.