Weather forecast for 10 daysKapaa, HI
Weather forecast for the weekend
Saturday Oct 17, 2026
- min.
- 73°F
Showers
- Precip. probability: 66%
- Precipitation: 0.24"
- Wind: 16mphENE 66°
- Humidity: 82%
- UV index: 0
- Sunrise: 6:34 am HST
- Sunset: 6:10 pm HST
- details ▼
For the rest of Saturday, showers will occur throughout the day, with some dry intervals in between.
The likelihood of rainfall for today is high. However, precipitation will be light. The lowest temperature will be a moderately hot 73.4°F.
Sunrise was at 6:34 am and sunset will be at 6:10 pm; the daylight will last for 11h and 36min.
The likelihood of rainfall for today is high. However, precipitation will be light. The lowest temperature will be a moderately hot 73.4°F.
Sunrise was at 6:34 am and sunset will be at 6:10 pm; the daylight will last for 11h and 36min.
Sunday Oct 18, 2026
- 81°F
- 73°F
AM Showers
- Precip. probability: 36%
- Precipitation: 0.24"
- Wind: 16mphENE 67°
- Humidity: 72%
- UV index: 9
- Sunrise: 6:34 am HST
- Sunset: 6:09 pm HST
- details ▼
Tomorrow, in Kapaa, expect light passing rain showers before midday.
The likelihood of rainfall is low, and light precipitation is predicted. Temperatures will experience a minor oscillation, reaching a high of a warm 80.6°F and dropping to a low of a temperate 73.4°F.
The maximum heat index, which combines air temperature and relative humidity, is evaluated at 84.2°F.
The maximum temperature tomorrow is forecasted to reflect October's average high of 79.5°F.
Sunrise will be at 6:34 am and sunset at 6:09 pm; tomorrow's daylight will last for 11h and 35min.
The likelihood of rainfall is low, and light precipitation is predicted. Temperatures will experience a minor oscillation, reaching a high of a warm 80.6°F and dropping to a low of a temperate 73.4°F.
The maximum heat index, which combines air temperature and relative humidity, is evaluated at 84.2°F.
The maximum temperature tomorrow is forecasted to reflect October's average high of 79.5°F.
Sunrise will be at 6:34 am and sunset at 6:09 pm; tomorrow's daylight will last for 11h and 35min.
10-day overview
Daily temperatures
Warmest period: Friday - Saturday 82°C.
Minimum temperature: 81°C.
Minimum temperature: 81°C.
Chance of precipitation
Highest chance: today 66%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 73°F
Showers
- Precip. probability: 66%
- Precipitation: 0.24"
- Wind: 16mphENE 66°
- Humidity: 82%
- UV index: 0
- Sunrise: 6:34 am HST
- Sunset: 6:10 pm HST
- details ▼
- Sunday
- Oct 18, 2026
- 81°F
- 73°F
AM Showers
- Precip. probability: 36%
- Precipitation: 0.24"
- Wind: 16mphENE 67°
- Humidity: 72%
- UV index: 9
- Sunrise: 6:34 am HST
- Sunset: 6:09 pm HST
- details ▼
- Monday
- Oct 19, 2026
- 81°F
- 73°F
Showers
- Precip. probability: 49%
- Precipitation: 0.35"
- Wind: 16mphENE 69°
- Humidity: 74%
- UV index: 9
- Sunrise: 6:35 am HST
- Sunset: 6:09 pm HST
- details ▼
- Tuesday
- Oct 20, 2026
- 81°F
- 73°F
AM Showers
- Precip. probability: 49%
- Precipitation: 0.08"
- Wind: 16mphENE 68°
- Humidity: 74%
- UV index: 9
- Sunrise: 6:35 am HST
- Sunset: 6:08 pm HST
- details ▼
- Wednesday
- Oct 21, 2026
- 81°F
- 72°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0.04"
- Wind: 13mphENE 66°
- Humidity: 72%
- UV index: 9
- Sunrise: 6:36 am HST
- Sunset: 6:07 pm HST
- details ▼
- Thursday
- Oct 22, 2026
- 81°F
- 72°F
Mostly Sunny
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 10mphENE 66°
- Humidity: 72%
- UV index: 9
- Sunrise: 6:36 am HST
- Sunset: 6:06 pm HST
- details ▼
- Friday
- Oct 23, 2026
- 82°F
- 72°F
Partly Cloudy
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 9mphENE 62°
- Humidity: 72%
- UV index: 9
- Sunrise: 6:37 am HST
- Sunset: 6:06 pm HST
- details ▼
- Saturday
- Oct 24, 2026
- 82°F
- 72°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 11mphNE 50°
- Humidity: 73%
- UV index: 8
- Sunrise: 6:37 am HST
- Sunset: 6:05 pm HST
- details ▼
- Sunday
- Oct 25, 2026
- 81°F
- 72°F
AM Showers
- Precip. probability: 38%
- Precipitation: 0.08"
- Wind: 12mphNE 52°
- Humidity: 73%
- UV index: 7
- Sunrise: 6:37 am HST
- Sunset: 6:04 pm HST
- details ▼
- Monday
- Oct 26, 2026
- 81°F
- 73°F
Showers
- Precip. probability: 36%
- Precipitation: 0.2"
- Wind: 12mphENE 74°
- Humidity: 72%
- UV index: 7
- Sunrise: 6:38 am HST
- Sunset: 6:04 pm HST
- details ▼
For the next ten days, a combination of rainy, cloudy and mostly clear weather is forecasted.
Rainfall is anticipated on Saturday through Wednesday, next Sunday and Monday.
Temperature variation will be minimal in the coming days. Highs will range from 80.6°F to 82.4°F, while the overnight low will be also nearly unchanged, as the minimum temperature is expected to range between 71.6°F and 73.4°F.
Friday and next Saturday, with the highest temperature of 82.4°F, will be the warmest days; all other days, the maximum temperature will be the same 80.6°F.
Rainfall is anticipated on Saturday through Wednesday, next Sunday and Monday.
Temperature variation will be minimal in the coming days. Highs will range from 80.6°F to 82.4°F, while the overnight low will be also nearly unchanged, as the minimum temperature is expected to range between 71.6°F and 73.4°F.
Friday and next Saturday, with the highest temperature of 82.4°F, will be the warmest days; all other days, the maximum temperature will be the same 80.6°F.
Updated: Oct 18, 2026 @ 01:58:08 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, wet conditions with brief showers are expected early in the day.
Light precipitation of 0.24" is anticipated. The possibility of rainfall is 36%.
Tomorrow, the maximum temperature will be 80.6°F, while the minimum temperature will be 73.4°F. The maximum heat index, which combines air temperature and relative humidity, is estimated at 84.2°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature will be also in line with the average low of 75.4°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature will be also in line with the average low of 75.4°F.
On Sunday, in Kapaa, sunrise will be at 6:34 am and sunset at 6:09 pm (HST).
Tomorrow in Kapaa, the daylight will last for 11h and 35min.





