Weather forecast for todayKapaa, HI

Weather forecast for today

Current condition 2:45 am HST

  • 75°F
  • Feels like:
    75°F
Mostly Cloudy
Mostly Cloudy
  • Precipitation: 0"
  • Wind: 11mphENE 70°
  • Humidity: 76%
  • Dewpoint: 66°F
  • Pressure: 30.04"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Currently, thick clouds are covering most of the sky, keeping conditions mostly cloudy.
The temperature is a moderately hot 75.2°F. The current temperature is only a few degrees off the highest temperature of the day.

Wednesday Oct 21, 2026

  • 81°F
  • 72°F
Showers
Showers
  • Precip. probability: 43%
  • Precipitation: 0"
  • Wind: 12mphENE 63°
  • Humidity: 75%
  • UV index: 8
  • Sunrise: 6:36 am HST
  • Sunset: 6:07 pm HST
  • ▼
On Wednesday, in Kapaa, expect showers with brief dry periods, especially during the afternoon.
Minimal precipitation is expected for today. Minor temperature shifts from a high of a temperate 80.6°F to a low of a delightful 71.6°F are anticipated.
The maximum heat index, which integrates air moisture with ambient temperature, is estimated at 84.2°F.
The highest temperature is predicted to follow the average for October, around 79.5°F.
Sunrise will be at 6:36 am and sunset at 6:07 pm; the daylight will last for 11h and 31min.

Hourly overview

Hourly temperatures

Warmest period: 12 pm - 3 pm 84°C.
Coldest hour: 6 am 73°C.

Chance of precipitation

Highest chance: 9 pm 40%.

Hourly weather forecast

  • 4 am
  • 73°F
  • Feels like:
    73°F
Cloudy
Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 9mphENE 75°
  • Humidity: 78%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 73°F
  • Feels like:
    73°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 9mphENE 73°
  • Humidity: 83%
  • Pressure: 30.03"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
Sunrise: 6:36 am
  • 8 am
  • 75°F
  • Feels like:
    75°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 9mphENE 71°
  • Humidity: 82%
  • Pressure: 30.06"Hg
  • Visibility: 6mi
  • UV index: 1
  • ▼
  • 10 am
  • 77°F
  • Feels like:
    82°F
Showers
Showers
  • Precip. probability: 43%
  • Precipitation: 0.04"
  • Wind: 11mphENE 66°
  • Humidity: 77%
  • Pressure: 30.06"Hg
  • Visibility: 6mi
  • UV index: 3
  • ▼
  • 12 pm
  • 81°F
  • Feels like:
    84°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 12mphENE 65°
  • Humidity: 70%
  • Pressure: 30"Hg
  • Visibility: 6mi
  • UV index: 7
  • ▼
  • 2 pm
  • 81°F
  • Feels like:
    84°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 12mphENE 62°
  • Humidity: 69%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 6
  • ▼
  • 4 pm
  • 79°F
  • Feels like:
    84°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 11mphENE 58°
  • Humidity: 71%
  • Pressure: 29.94"Hg
  • Visibility: 8mi
  • UV index: 2
  • ▼
  • 6 pm
  • 77°F
  • Feels like:
    81°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 11mphENE 59°
  • Humidity: 77%
  • Pressure: 29.97"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
Sunset: 6:07 pm
  • 8 pm
  • 75°F
  • Feels like:
    81°F
Showers
Showers
  • Precip. probability: 45%
  • Precipitation: 0.04"
  • Wind: 11mphENE 63°
  • Humidity: 80%
  • Pressure: 30"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 10 pm
  • 75°F
  • Feels like:
    77°F
Showers
Showers
  • Precip. probability: 51%
  • Precipitation: 0.04"
  • Wind: 10mphENE 72°
  • Humidity: 80%
  • Pressure: 30"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
Today, in Kapaa, a combination of gloomy and rain-filled weather is predicted.
With minimal precipitation of 0.04", rainfall is predicted at 10 am, 11 am, 1 pm, 5 pm, and from 7 pm to 11 pm.
The temperature will vary between the lowest temperature of 73.4°F and the highest temperature of 80.6°F. The warmest part of the day will be from noon to 3 pm.
The forecasted high will be comparable to the typical October maximum of 79.5°F. The lowest temperature is expected to be also a few degrees lower than the average minimum in October, typically 75.4°F.
Updated: Oct 21, 2026 @ 12:45:03 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (2:45 am HST) is 75.2°F.

Today, scattered showers will occur throughout the day, with lighter rain expected during the afternoon.

Today, there is a low chance of minimal precipitation in Kapaa.

Today, the maximum temperature will be 80.6°F, while the minimum temperature will be 71.6°F. The maximum heat index, which integrates air moisture with ambient temperature, is assessed at 84.2°F.
The maximum temperature will be in line with the average highest temperature of 79.5°F in October. The lowest temperature will be a couple of degrees lower than the average low of 75.4°F.

On Wednesday, in Kapaa, sunrise will be at 6:36 am and sunset at 6:07 pm (HST).

In Kapaa, Hawaii, today, there will be 11h and 31min of daylight.