Weather forecast for tomorrowWaikapu, HI
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 86°F
- 70°F
Sunny / Wind
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 23mphNE 42°
- Humidity: 61%
- UV index: 10
- Sunrise: 6:22 am HST
- Sunset: 5:59 pm HST
- details ▼
Tomorrow, on Sunday, October 18, bright skies and windy conditions will continue.
The temperature will fluctuate from a high of a hot 86°F to a low of a pleasant 69.8°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is computed to be a blazing 91.4°F. Note that heat index values are valued for light wind and location in the shade.
Tomorrow, the maximum temperature is expected to be moderately higher than the common October peak of 79.3°F.
Sunrise will be at 6:22 am and sunset at 5:59 pm; tomorrow's daylight will last for 11h and 37min.
The temperature will fluctuate from a high of a hot 86°F to a low of a pleasant 69.8°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is computed to be a blazing 91.4°F. Note that heat index values are valued for light wind and location in the shade.
Tomorrow, the maximum temperature is expected to be moderately higher than the common October peak of 79.3°F.
Sunrise will be at 6:22 am and sunset at 5:59 pm; tomorrow's daylight will last for 11h and 37min.
Hourly overview
Hourly temperatures
Warmest hour: 12 pm 88°C.
Coldest period: 12 am - 3 am 72°C.
Coldest period: 12 am - 3 am 72°C.
Chance of precipitation
Highest chance: 6 am 7%.
Hourly weather forecast
- 12 am
- 72°F
- Feels like:72°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphNE 39°
- Humidity: 87%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 72°F
- Feels like:72°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 10mphNE 39°
- Humidity: 85%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 72°F
- Feels like:72°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 10mphNE 43°
- Humidity: 86%
- Pressure: 29.97"Hg
- Visibility: 8mi
- UV index: 0
- details ▼
- 6 am
- 72°F
- Feels like:73°F
Clear
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 11mphNE 45°
- Humidity: 85%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 6:22 am
- 8 am
- 77°F
- Feels like:81°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 14mphNE 39°
- Humidity: 71%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 10 am
- 82°F
- Feels like:86°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 19mphNE 42°
- Humidity: 58%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 6
- details ▼
- 12 pm
- 84°F
- Feels like:88°F
Sunny / Wind
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 21mphNE 41°
- Humidity: 53%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 10
- details ▼
- 2 pm
- 84°F
- Feels like:88°F
Sunny / Wind
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 23mphNE 43°
- Humidity: 53%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 7
- details ▼
- 4 pm
- 82°F
- Feels like:84°F
Sunny / Wind
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 22mphNE 43°
- Humidity: 58%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
Sunset: 5:59 pm
- 6 pm
- 77°F
- Feels like:81°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 17mphNE 44°
- Humidity: 69%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 75°F
- Feels like:77°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 16mphNE 46°
- Humidity: 74%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 73°F
- Feels like:75°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 14mphNE 45°
- Humidity: 74%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, primarily dry and sunny and occasionally gloomy weather is predicted.
The temperature will vary between a minimum of 71.6°F and a maximum of 84.2°F. The hottest part of the day will be from 11 am to 3 pm.
The high will be slightly warmer than the normal maximum of 79.3°F for October. The minimum temperature tomorrow will be also a few degrees lower than October's average low.
The temperature will vary between a minimum of 71.6°F and a maximum of 84.2°F. The hottest part of the day will be from 11 am to 3 pm.
The high will be slightly warmer than the normal maximum of 79.3°F for October. The minimum temperature tomorrow will be also a few degrees lower than October's average low.
Updated: Oct 18, 2026 @ 07:59:19 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, the weather will be sunny and windy.
Tomorrow, the maximum temperature will be 86°F, while the minimum temperature will be 69.8°F. The maximum heat index, which indicates how humid air affects the felt temperature, is calculated to be 91.4°F.
The highest temperature tomorrow will be slightly warmer than the average maximum temperature in October. Tomorrow, the lowest temperature will be also a couple of degrees lower than the average low temperature.
The highest temperature tomorrow will be slightly warmer than the average maximum temperature in October. Tomorrow, the lowest temperature will be also a couple of degrees lower than the average low temperature.
On Sunday, in Waikapu, sunrise will be at 6:22 am and sunset at 5:59 pm (HST).
Tomorrow, the daylight will last for 11h and 37min.
