Weather forecast for 10 daysKeauhou, HI

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 82°F
  • 72°F
Showers
Showers
  • Precip. probability: 52%
  • Precipitation: 0.12"
  • Wind: 10mphSW 236°
  • Humidity: 72%
  • UV index: 10
  • Sunrise: 6:19 am HST
  • Sunset: 5:58 pm HST
  • ▼
Tomorrow, on Sunday, October 18, expect light rain showers throughout the day, with a break in the rain later in the day.
Minimal precipitation is expected. The predicted temperature range extends from a high of a temperate 82.4°F to a low of an agreeable 71.6°F.
The maximum heat index, which integrates air moisture with ambient temperature, is appraised at a humid 87.8°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The forecasted maximum is expected to be uncommonly higher than October's regular temperature of 73.2°F.
Sunrise will be at 6:19 am and sunset at 5:58 pm; tomorrow's daylight will last for 11h and 39min.

10-day overview

Daily temperatures

Maximum temperature: 84°C.
Coldest day: Wednesday 81°C.

Chance of precipitation

Highest chance: tomorrow 52%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 72°F
Showers Early
Showers Early
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • Wind: 6mphSSE 155°
  • Humidity: 82%
  • UV index: 0
  • Sunrise: 6:19 am HST
  • Sunset: 5:59 pm HST
  • ▼
  • Sunday
  • Oct 18, 2026
  • 82°F
  • 72°F
Showers
Showers
  • Precip. probability: 52%
  • Precipitation: 0.12"
  • Wind: 10mphSW 236°
  • Humidity: 72%
  • UV index: 10
  • Sunrise: 6:19 am HST
  • Sunset: 5:58 pm HST
  • ▼
  • Monday
  • Oct 19, 2026
  • 84°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 10mphWSW 239°
  • Humidity: 69%
  • UV index: 10
  • Sunrise: 6:19 am HST
  • Sunset: 5:57 pm HST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 82°F
  • 72°F
PM Showers
PM Showers
  • Precip. probability: 36%
  • Precipitation: 0.12"
  • Wind: 11mphWSW 238°
  • Humidity: 69%
  • UV index: 10
  • Sunrise: 6:20 am HST
  • Sunset: 5:56 pm HST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 81°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 10mphWSW 240°
  • Humidity: 70%
  • UV index: 10
  • Sunrise: 6:20 am HST
  • Sunset: 5:56 pm HST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 82°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 11mphWSW 242°
  • Humidity: 68%
  • UV index: 10
  • Sunrise: 6:20 am HST
  • Sunset: 5:55 pm HST
  • ▼
  • Friday
  • Oct 23, 2026
  • 82°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 10mphWSW 245°
  • Humidity: 63%
  • UV index: 9
  • Sunrise: 6:21 am HST
  • Sunset: 5:54 pm HST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 84°F
  • 73°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 10mphWSW 245°
  • Humidity: 65%
  • UV index: 6
  • Sunrise: 6:21 am HST
  • Sunset: 5:54 pm HST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 84°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 10mphWSW 246°
  • Humidity: 67%
  • UV index: 9
  • Sunrise: 6:22 am HST
  • Sunset: 5:53 pm HST
  • ▼
  • Monday
  • Oct 26, 2026
  • 82°F
  • 73°F
Few Showers
Few Showers
  • Precip. probability: 34%
  • Precipitation: 0.16"
  • Wind: 11mphWSW 244°
  • Humidity: 70%
  • UV index: 8
  • Sunrise: 6:22 am HST
  • Sunset: 5:53 pm HST
  • ▼
Weather models show that a combination of cloud-filled and showery weather is predicted.
Rain is predicted for Saturday, Sunday, Tuesday and next Monday.
The high temperatures are expected to remain largely stable across the forecast window. Expected highs will hover between 80.6°F and 84.2°F, while changes in the overnight low will be also barely noticeable, as the minimum temperature is expected to range between 71.6°F and 73.4°F.
Monday, next Saturday and Sunday, with the highest temperature of 84.2°F, will be the hottest days in Keauhou, Hawaii; expect the coldest day on Wednesday with a high of 80.6°F.
Taking the humidity into consideration, the maximum feel-like temperature may increase and vary between 84.2°F and a tropical 91.4°F.
August and October, with an average high-temperature of 73.2°F, are the warmest months in Keauhou.
Updated: Oct 18, 2026 @ 07:14:04 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Keauhou, expect light rain showers throughout the day, with a break in the rain later in the day.

There is a high likelihood of rainfall, but precipitation will be minimal.

Tomorrow, the highest temperature will be 82.4°F, while the lowest temperature will be 71.6°F. The maximum heat index, which combines air temperature and relative humidity, is computed to be 87.8°F.
Tomorrow, the maximum temperature will be notably higher than the average highest temperature of 73.2°F in October. The lowest temperature will be in line with the average low of 70°F.

On Sunday, in Keauhou, sunrise will be at 6:19 am and sunset at 5:58 pm (HST).

In Keauhou, tomorrow, there will be 11h and 39min of daylight.