Weather forecast for 10 daysGuam National Wildlife Refuge, GU

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 82°F
  • 79°F
Rain / Wind
Rain / Wind
  • Precip. probability: 99%
  • Precipitation: 1.54"
  • Wind: 55mphSE 129°
  • Humidity: 90%
  • UV index: 6
  • Sunrise: 6:11 am ChST
  • Sunset: 5:59 pm ChST
  • ▼
Today, in Guam National Wildlife Refuge, rain will be accompanied by windy weather.
Intense precipitation of 1.54" is predicted. A narrow temperature span is forecasted, from a high of a temperate 82.4°F to a low of a warm 78.8°F.
The maximum heat index, which combines air temperature and relative humidity, is calculated to be a tropical 93.2°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
Sunrise will be at 6:11 am and sunset at 5:59 pm; the daylight will last for 11h and 49min.

10-day overview

Daily temperatures

Warmest period: Tuesday - Tuesday 84°C.
Coldest period: today - tomorrow 82°C.

Chance of precipitation

Highest chance: today 99%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 82°F
  • 79°F
Rain / Wind
Rain / Wind
  • Precip. probability: 99%
  • Precipitation: 1.54"
  • Wind: 55mphSE 129°
  • Humidity: 90%
  • UV index: 6
  • Sunrise: 6:11 am ChST
  • Sunset: 5:59 pm ChST
  • ▼
  • Monday
  • Oct 19, 2026
  • 82°F
  • 79°F
Showers / Wind
Showers / Wind
  • Precip. probability: 65%
  • Precipitation: 3.27"
  • Wind: 25mphSE 145°
  • Humidity: 88%
  • UV index: 6
  • Sunrise: 6:11 am ChST
  • Sunset: 5:59 pm ChST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 84°F
  • 79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0.47"
  • Wind: 12mphESE 103°
  • Humidity: 83%
  • UV index: 11
  • Sunrise: 6:11 am ChST
  • Sunset: 5:58 pm ChST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 84°F
  • 79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 13mphNE 56°
  • Humidity: 83%
  • UV index: 10
  • Sunrise: 6:12 am ChST
  • Sunset: 5:58 pm ChST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 84°F
  • 79°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 24%
  • Precipitation: 0.08"
  • Wind: 14mphENE 57°
  • Humidity: 84%
  • UV index: 11
  • Sunrise: 6:12 am ChST
  • Sunset: 5:57 pm ChST
  • ▼
  • Friday
  • Oct 23, 2026
  • 84°F
  • 79°F
Showers
Showers
  • Precip. probability: 47%
  • Precipitation: 0.12"
  • Wind: 14mphENE 62°
  • Humidity: 83%
  • UV index: 11
  • Sunrise: 6:12 am ChST
  • Sunset: 5:57 pm ChST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 84°F
  • 79°F
Showers
Showers
  • Precip. probability: 47%
  • Precipitation: 0.28"
  • Wind: 12mphENE 74°
  • Humidity: 83%
  • UV index: 11
  • Sunrise: 6:12 am ChST
  • Sunset: 5:56 pm ChST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 84°F
  • 79°F
Few Showers
Few Showers
  • Precip. probability: 35%
  • Precipitation: 0.24"
  • Wind: 8mphENE 78°
  • Humidity: 84%
  • UV index: 10
  • Sunrise: 6:12 am ChST
  • Sunset: 5:56 pm ChST
  • ▼
  • Monday
  • Oct 26, 2026
  • 84°F
  • 79°F
Showers
Showers
  • Precip. probability: 37%
  • Precipitation: 0.16"
  • Wind: 6mphENE 65°
  • Humidity: 83%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:55 pm ChST
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 84°F
  • 79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0.12"
  • Wind: 6mphNE 47°
  • Humidity: 80%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:55 pm ChST
  • ▼
rain-filled, dull and mostly clear weather is forecasted.
Rainfall is expected on Sunday through Tuesday, Thursday through next Tuesday.
The variation in maximum temperature will be negligible in the upcoming days. Expected highs will hover between 82.4°F and 84.2°F, while the low will not vary, staying at 78.8°F.
Over the coming ten days, daily highs will consistently reach 84.2°F; the coldest days will be Sunday and Monday, with a maximum of 82.4°F.
Including the humidity's impact, the maximum feel-like temperature may increase considerably and range between a humid 91.4°F and a steamy 96.8°F.
Updated: Oct 17, 2026 @ 15:45:01 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, rain and blustery winds are expected.

Yes, it will rain today. Beware - heavy precipitation of 1.54" is forecasted.

Today, the highest temperature will be 82.4°F, while the lowest temperature will be 78.8°F. The maximum heat index, which factors the actual air temperature with the relative humidity, is calculated to be 93.2°F.
The highest temperature today will be notably higher than the average maximum of 32°F in October. The lowest temperature today will be also uncommonly higher than the average low of 32°F.

On Sunday, in Guam National Wildlife Refuge, sunrise will be at 6:11 am and sunset at 5:59 pm (ChST).

In Guam National Wildlife Refuge, today, there will be 11h and 49min of daylight.