Weather forecast for tomorrowHaiku, HI

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 84°F
  • 73°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 24mphNE 54°
  • Humidity: 63%
  • UV index: 10
  • Sunrise: 6:21 am HST
  • Sunset: 5:58 pm HST
  • ▼
Tomorrow, on Sunday, expect blustery conditions under a sky filled with passing clouds.
Expected temperatures will peak at a moderately hot 84.2°F and dip to a minimum of a warm 73.4°F.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is computed to be a blazing 89.6°F. Note that heat index values are valued for light wind and location in the shade.
The temperature is expected to be a few degrees higher than the standard October peak 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 73°C.

Chance of precipitation

Highest chance: 12 am 16%.

Hourly weather forecast

  • 12 am
  • 73°F
  • Feels like:
    73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 14mphENE 70°
  • Humidity: 81%
  • Pressure: 30"Hg
  • Visibility: 8mi
  • UV index: 0
  • ▼
  • 2 am
  • 73°F
  • Feels like:
    73°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 13mphENE 71°
  • Humidity: 82%
  • Pressure: 30"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 4 am
  • 73°F
  • Feels like:
    75°F
Mostly Clear
Mostly Clear
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 12mphENE 62°
  • Humidity: 81%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 73°F
  • Feels like:
    75°F
Mostly Clear
Mostly Clear
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 12mphENE 64°
  • Humidity: 79%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 6:21 am
  • 8 am
  • 77°F
  • Feels like:
    81°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 16mphNE 53°
  • Humidity: 71%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 10 am
  • 82°F
  • Feels like:
    84°F
Sunny / Wind
Sunny / Wind
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 21mphNE 54°
  • Humidity: 60%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 6
  • ▼
  • 12 pm
  • 84°F
  • Feels like:
    88°F
Mostly Sunny / Wind
Mostly Sunny / Wind
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 23mphNE 52°
  • Humidity: 57%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 10
  • ▼
  • 2 pm
  • 84°F
  • Feels like:
    86°F
Sunny / Wind
Sunny / Wind
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 24mphNE 52°
  • Humidity: 55%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 7
  • ▼
  • 4 pm
  • 81°F
  • Feels like:
    84°F
Sunny / Wind
Sunny / Wind
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 24mphNE 54°
  • Humidity: 61%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
Sunset: 5:58 pm
  • 6 pm
  • 77°F
  • Feels like:
    81°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 19mphENE 60°
  • Humidity: 68%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 77°F
  • Feels like:
    81°F
Mostly Clear
Mostly Clear
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 16mphENE 62°
  • Humidity: 73%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 75°F
  • Feels like:
    79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 16mphENE 62°
  • Humidity: 74%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of cloudy and dry and sunny weather is forecasted.
The temperature will be between a minimum of 73.4°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 lowest temperature is also similar to October's typical minimum of 75.6°F.
Updated: Oct 18, 2026 @ 05:54:48 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Haiku, partly cloudy conditions with persistent winds will remain in place.

Tomorrow, the maximum temperature will be 84.2°F, while the minimum temperature will be 73.4°F. The maximum heat index, which integrates air moisture with ambient temperature, is appraised at 89.6°F.
The highest temperature will be a couple of degrees higher than the average maximum of 77.9°F in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Haiku, sunrise will be at 6:21 am and sunset at 5:58 pm (HST).

Tomorrow, the daylight will last for 11h and 37min.