Weather forecast for tomorrowGuam National Wildlife Refuge, GU
Weather forecast for tomorrow
Tuesday Oct 20, 2026
- 84°F
- 79°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 12mphE 96°
- Humidity: 84%
- UV index: 9
- Sunrise: 6:11 am ChST
- Sunset: 5:58 pm ChST
- details ▼
Tomorrow, on Tuesday, October 20, thin clouds will pass through at times, but overall, it will remain bright.
Rainfall is not predicted. A narrow temperature span is anticipated, from a high of a moderately hot 84.2°F to a low of a warm 78.8°F.
The maximum heat index, which adjusts the air temperature based on humidity, is assessed at a steamy 96.8°F. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Sunrise will be at 6:11 am and sunset at 5:58 pm; tomorrow's daylight will last for 11h and 47min.
Rainfall is not predicted. A narrow temperature span is anticipated, from a high of a moderately hot 84.2°F to a low of a warm 78.8°F.
The maximum heat index, which adjusts the air temperature based on humidity, is assessed at a steamy 96.8°F. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Sunrise will be at 6:11 am and sunset at 5:58 pm; tomorrow's daylight will last for 11h and 47min.
Hourly overview
Hourly temperatures
Warmest period: 12 pm - 3 pm 95°C.
Coldest period: 3 am - 6 am 90°C.
Coldest period: 3 am - 6 am 90°C.
Chance of precipitation
Highest chance: 12 am 11%.
Hourly weather forecast
- 12 am
- 81°F
- Feels like:91°F
Cloudy
- Precip. probability: 11%
- Precipitation: 0"
- Wind: 12mphESE 115°
- Humidity: 90%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 81°F
- Feels like:90°F
Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 12mphESE 112°
- Humidity: 91%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 81°F
- Feels like:90°F
Mostly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 12mphESE 114°
- Humidity: 91%
- Pressure: 29.83"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 81°F
- Feels like:90°F
Mostly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 12mphESE 113°
- Humidity: 90%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 6:11 am
- 8 am
- 82°F
- Feels like:93°F
Mostly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphESE 109°
- Humidity: 87%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 10 am
- 82°F
- Feels like:93°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphESE 105°
- Humidity: 84%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 8
- details ▼
- 12 pm
- 84°F
- Feels like:95°F
Mostly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphESE 103°
- Humidity: 82%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 8
- details ▼
- 2 pm
- 84°F
- Feels like:95°F
Mostly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 10mphE 91°
- Humidity: 81%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 7
- details ▼
- 4 pm
- 84°F
- Feels like:95°F
Mostly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 8mphE 84°
- Humidity: 81%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
Sunset: 5:58 pm
- 6 pm
- 82°F
- Feels like:93°F
Mostly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphENE 74°
- Humidity: 85%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 8 pm
- 81°F
- Feels like:90°F
Mostly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 8mphENE 71°
- Humidity: 87%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 81°F
- Feels like:91°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphENE 65°
- Humidity: 88%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, primarily dull and occasionally showery weather is forecasted.
The temperature variation throughout the day will be indistinguishable, with a minimum of 80.6°F and a maximum of 84.2°F. The feels-like temperature variation throughout the day will be unnoticeable, with the lowest temperature of 89.6°F and the highest temperature of 95°F. The hottest part of the day will be from 11 am to 5 pm.
The temperature variation throughout the day will be indistinguishable, with a minimum of 80.6°F and a maximum of 84.2°F. The feels-like temperature variation throughout the day will be unnoticeable, with the lowest temperature of 89.6°F and the highest temperature of 95°F. The hottest part of the day will be from 11 am to 5 pm.
Updated: Oct 18, 2026 @ 17:43:11 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 Guam National Wildlife Refuge, some passing clouds may drift through, but the sun will shine at times.
No, it will not rain tomorrow.
Tomorrow, the maximum temperature will be 84.2°F, while the minimum temperature will be 78.8°F. The maximum heat index, which combines air temperature and relative humidity, is evaluated at 96.8°F.
The highest temperature will be uncommonly higher than the average maximum of 32°F in October. The lowest temperature will be also uncommonly higher than the average low of 32°F.
The highest temperature will be uncommonly higher than the average maximum of 32°F in October. The lowest temperature will be also uncommonly higher than the average low of 32°F.
On Tuesday, in Guam National Wildlife Refuge, sunrise will be at 6:11 am and sunset at 5:58 pm (ChST).
In Guam National Wildlife Refuge, tomorrow, there will be 11h and 47min of daylight.
