Weather forecast for 10 daysWaipahu, HI

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 86°F
  • 73°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 16mphENE 64°
  • Humidity: 61%
  • UV index: 10
  • Sunrise: 6:29 am HST
  • Sunset: 6:05 pm HST
  • ▼
Tomorrow, in Waipahu, mostly sunny skies are also expected.
Temperatures are forecasted to range from a maximum of a blazing 86°F to a minimum of a warm 73.4°F.
The maximum heat index, which measures the combined effect of heat and moisture, is estimated at a hot 91.4°F. Note that heat index values are valued for light wind and location in the shade.
The temperature for tomorrow is forecasted to be moderately higher than the October average of 81.1°F.
Sunrise will be at 6:29 am and sunset at 6:05 pm; tomorrow's daylight will last for 11h and 36min.

10-day overview

Daily temperatures

Maximum temperature: 86°C.
Minimum temperature: 84°C.

Chance of precipitation

Highest chance: Sunday 25.10. 24%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 9mphNE 56°
  • Humidity: 78%
  • UV index: 0
  • Sunrise: 6:28 am HST
  • Sunset: 6:05 pm HST
  • ▼
  • Sunday
  • Oct 18, 2026
  • 86°F
  • 73°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 16mphENE 64°
  • Humidity: 61%
  • UV index: 10
  • Sunrise: 6:29 am HST
  • Sunset: 6:05 pm HST
  • ▼
  • Monday
  • Oct 19, 2026
  • 86°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 16mphENE 66°
  • Humidity: 62%
  • UV index: 10
  • Sunrise: 6:29 am HST
  • Sunset: 6:04 pm HST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 84°F
  • 73°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 16mphENE 68°
  • Humidity: 60%
  • UV index: 10
  • Sunrise: 6:29 am HST
  • Sunset: 6:03 pm HST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 84°F
  • 72°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 12mphENE 68°
  • Humidity: 60%
  • UV index: 10
  • Sunrise: 6:30 am HST
  • Sunset: 6:02 pm HST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 86°F
  • 72°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphENE 71°
  • Humidity: 61%
  • UV index: 9
  • Sunrise: 6:30 am HST
  • Sunset: 6:02 pm HST
  • ▼
  • Friday
  • Oct 23, 2026
  • 86°F
  • 73°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 7mphENE 63°
  • Humidity: 65%
  • UV index: 7
  • Sunrise: 6:31 am HST
  • Sunset: 6:01 pm HST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 86°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 8mphNE 55°
  • Humidity: 66%
  • UV index: 9
  • Sunrise: 6:31 am HST
  • Sunset: 6:00 pm HST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 84°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphNE 55°
  • Humidity: 66%
  • UV index: 8
  • Sunrise: 6:31 am HST
  • Sunset: 6:00 pm HST
  • ▼
  • Monday
  • Oct 26, 2026
  • 84°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 10mphENE 72°
  • Humidity: 64%
  • UV index: 8
  • Sunrise: 6:32 am HST
  • Sunset: 5:59 pm HST
  • ▼
During the upcoming ten-day period, a combination of cloudy and mostly clear weather is forecasted.
Rainfall is not anticipated in Waipahu in the upcoming days.
Fluctuations in temperature will be barely perceptible over the next several days. Highs will range from 84.2°F to 86°F, while changes in the overnight low will be also barely noticeable, as the minimum temperature will fluctuate between 71.6°F and 73.4°F.
Sunday, Monday, Thursday through next Saturday, with the highest temperature of 86°F, will be the hottest days in Waipahu; with a maximum temperature of 84.2°F, Tuesday, Wednesday, next Sunday and Monday will be the coldest days in Waipahu.
Including the humidity's impact, the maximum feel-like temperature may increase and range between a blazing 87.8°F and a tropical 93.2°F.
Updated: Oct 18, 2026 @ 04:14:08 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, sunshine will lead the day, with clouds making only brief appearances.

Tomorrow, the highest temperature will be 86°F, while the lowest temperature will be 73.4°F. The maximum heat index, which adjusts the air temperature based on humidity, is calculated to be 91.4°F.
The maximum temperature will be relatively higher than the average highest temperature of 81.1°F in October. The lowest temperature will be in line with the average low of 74.7°F.

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

In Waipahu, the length of the day tomorrow will be 11h and 36min.