Weather forecast for 10 daysKeauhou, HI

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 82°F
  • 72°F
Showers
Showers
  • Precip. probability: 42%
  • Precipitation: 0"
  • Wind: 11mphWSW 239°
  • Humidity: 71%
  • UV index: 10
  • Sunrise: 6:19 am HST
  • Sunset: 5:58 pm HST
  • ▼
Today, in Keauhou, expect showers with brief dry periods, especially during the afternoon.
Minimal precipitation is forecasted. Temperatures are anticipated to peak at a moderately hot 82.4°F and drop to a minimum of a delightful 71.6°F.
The maximum heat index, which integrates air moisture with ambient temperature, is estimated at a humid 87.8°F. Note that heat index values are valued for light wind and location in the shade.
Today's high is expected to be notably higher than the average October maximum of 73.2°F.
Sunrise will be at 6:19 am and sunset at 5:58 pm; the daylight will last for 11h and 39min.

10-day overview

Daily temperatures

Maximum temperature: 82°C.
Minimum temperature: 81°C.

Chance of precipitation

Highest chance: today 42%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 82°F
  • 72°F
Showers
Showers
  • Precip. probability: 42%
  • Precipitation: 0"
  • Wind: 11mphWSW 239°
  • Humidity: 71%
  • UV index: 10
  • Sunrise: 6:19 am HST
  • Sunset: 5:58 pm HST
  • ▼
  • Monday
  • Oct 19, 2026
  • 82°F
  • 70°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0.12"
  • Wind: 11mphWSW 237°
  • Humidity: 68%
  • UV index: 10
  • Sunrise: 6:19 am HST
  • Sunset: 5:57 pm HST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 82°F
  • 70°F
PM Showers
PM Showers
  • Precip. probability: 32%
  • Precipitation: 0"
  • Wind: 11mphWSW 239°
  • Humidity: 68%
  • 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: 0.08"
  • Wind: 11mphWSW 240°
  • Humidity: 69%
  • 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: 7%
  • Precipitation: 0"
  • Wind: 11mphWSW 239°
  • 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: 2%
  • Precipitation: 0"
  • Wind: 10mphWSW 243°
  • Humidity: 63%
  • UV index: 8
  • Sunrise: 6:21 am HST
  • Sunset: 5:54 pm HST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 82°F
  • 72°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 10mphWSW 243°
  • Humidity: 65%
  • UV index: 8
  • Sunrise: 6:21 am HST
  • Sunset: 5:54 pm HST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 82°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 11mphWSW 245°
  • Humidity: 67%
  • UV index: 8
  • Sunrise: 6:22 am HST
  • Sunset: 5:53 pm HST
  • ▼
  • Monday
  • Oct 26, 2026
  • 81°F
  • 72°F
Showers
Showers
  • Precip. probability: 38%
  • Precipitation: 0"
  • Wind: 11mphWSW 240°
  • Humidity: 71%
  • UV index: 7
  • Sunrise: 6:22 am HST
  • Sunset: 5:53 pm HST
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 81°F
  • 72°F
Showers
Showers
  • Precip. probability: 39%
  • Precipitation: 0.08"
  • Wind: 10mphSW 233°
  • Humidity: 73%
  • UV index: 8
  • Sunrise: 6:22 am HST
  • Sunset: 5:52 pm HST
  • ▼
It is expected that a combination of overcast and damp weather is anticipated.
Rainfall is predicted for Monday, Wednesday and next Tuesday.
Temperature differences will be unnoticeable throughout the coming week. Expected highs will hover between 80.6°F and 82.4°F, while changes in the overnight low will be also barely noticeable, as the minimum temperature will fluctuate between 69.8°F and 73.4°F.
With a maximum temperature of 82.4°F, Sunday through Tuesday, Thursday through next Sunday will be the warmest days in Keauhou; the coldest days will be Wednesday, next Monday and Tuesday, with a maximum of 80.6°F.
The warmest months are August and October, with an average high-temperature of 73.2°F.
Updated: Oct 18, 2026 @ 10:41:01 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Keauhou, expect light showers throughout the day, with a chance of dry weather later.

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

Today, the maximum temperature will be 82.4°F, while the minimum temperature will be 71.6°F. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is calculated to be 87.8°F.
Today, the maximum temperature will be notably higher than the average highest temperature of 73.2°F in October. Today, the lowest temperature will be in line with the average low temperature.

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

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