Weather forecast for tomorrowHaiku, HI
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 84°F
- 72°F
Mostly Sunny / Wind
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 25mphNE 54°
- Humidity: 63%
- UV index: 10
- Sunrise: 6:21 am HST
- Sunset: 5:58 pm HST
- details ▼
On Sunday, October 18, a cloudless sky and moderate winds are expected.
Predicted temperatures will peak at a temperate 84.2°F and dip to a minimum of a delightful 71.6°F.
The maximum heat index, which adjusts the air temperature based on humidity, is appraised at a hot 89.6°F. Note that heat index values are valued for light wind and location in the shade.
Forecasted temperatures are trending relatively higher than October's climate norm of 77.9°F.
Sunrise will be at 6:21 am and sunset at 5:58 pm; tomorrow's daylight will last for 11h and 37min.
Predicted temperatures will peak at a temperate 84.2°F and dip to a minimum of a delightful 71.6°F.
The maximum heat index, which adjusts the air temperature based on humidity, is appraised at a hot 89.6°F. Note that heat index values are valued for light wind and location in the shade.
Forecasted temperatures are trending relatively higher than October's climate norm of 77.9°F.
Sunrise will be at 6:21 am and sunset at 5:58 pm; tomorrow's daylight will last for 11h and 37min.
Hourly overview
Hourly temperatures
Warmest hour: 12 pm 88°C.
Coldest hour: 12 am 72°C.
Coldest hour: 12 am 72°C.
Chance of precipitation
Highest chance: 12 am 14%.
Hourly weather forecast
- 12 am
- 72°F
- Feels like:72°F
Mostly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 11mphENE 71°
- Humidity: 85%
- Pressure: 30"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 2 am
- 73°F
- Feels like:73°F
Partly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 14mphENE 70°
- Humidity: 82%
- Pressure: 30"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 4 am
- 72°F
- Feels like:72°F
Mostly Clear
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 14mphENE 70°
- Humidity: 83%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 73°F
- Feels like:75°F
Mostly Clear
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 12mphENE 63°
- Humidity: 81%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 6:21 am
- 8 am
- 77°F
- Feels like:81°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 16mphNE 53°
- Humidity: 72%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 10 am
- 82°F
- Feels like:84°F
Mostly Sunny / Wind
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 21mphNE 54°
- Humidity: 61%
- Pressure: 30.06"Hg
- Visibility: 10mi
- UV index: 6
- details ▼
- 12 pm
- 84°F
- Feels like:88°F
Sunny / Wind
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 23mphNE 51°
- Humidity: 56%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 10
- details ▼
- 2 pm
- 84°F
- Feels like:88°F
Mostly Sunny / Wind
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 24mphNE 52°
- Humidity: 55%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 7
- details ▼
- 4 pm
- 81°F
- Feels like:84°F
Sunny / Wind
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 24mphNE 54°
- Humidity: 61%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
Sunset: 5:58 pm
- 6 pm
- 77°F
- Feels like:81°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 19mphENE 59°
- Humidity: 70%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 77°F
- Feels like:81°F
Mostly Clear
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 17mphENE 61°
- Humidity: 73%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 75°F
- Feels like:77°F
Mostly Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 16mphENE 61°
- Humidity: 74%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, a combination of sunny and cloudy weather is expected.
The temperature will be between a minimum of 71.6°F and a maximum of 84.2°F. The hottest part of the day will be from noon to 2 pm.
The maximum temperature tomorrow will be slightly warmer than October's average high. The minimum temperature tomorrow will be also slightly cooler than October's average low.
The temperature will be between a minimum of 71.6°F and a maximum of 84.2°F. The hottest part of the day will be from noon to 2 pm.
The maximum temperature tomorrow will be slightly warmer than October's average high. The minimum temperature tomorrow will be also slightly cooler than October's average low.
Updated: Oct 18, 2026 @ 08:13:09 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
Tomorrow, in Haiku, windy and bright weather is anticipated.
Tomorrow, the highest temperature will be 84.2°F, while the lowest temperature will be 71.6°F. The maximum heat index, which measures the combined effect of heat and moisture, is evaluated at 89.6°F.
The maximum temperature tomorrow will be slightly warmer than the average highest temperature in October. The lowest temperature tomorrow will be also a few degrees lower than the average low temperature.
The maximum temperature tomorrow will be slightly warmer than the average highest temperature in October. The lowest temperature tomorrow will be also a few degrees lower than the average low temperature.
On Sunday, in Haiku, sunrise will be at 6:21 am and sunset at 5:58 pm (HST).
In Haiku, the length of the day tomorrow will be 11h and 37min.
