Weather forecast for 10 daysGuam, USA

Weather forecast for the weekend

Saturday Oct 24, 2026

  • 86°F
  • 79°F
Showers
Showers
  • Precip. probability: 40%
  • Precipitation: 0"
  • Wind: 9mphE 92°
  • Humidity: 81%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:57 pm ChST
  • ▼
Today, on Saturday, October 24, expect showers with brief dry periods, especially during the afternoon.
Minimal precipitation is predicted. The day will observe a moderate high of a humid 86°F, subtly differing from a low of a temperate 78.8°F.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is estimated at a sizzling 100.4°F. Note that heat index values are valued for light wind and location in the shade. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The temperature will be in line with October's average maximum of 84.4°F.
Sunrise will be at 6:13 am and sunset at 5:57 pm; the daylight will last for 11h and 44min.

Sunday Oct 25, 2026

  • 86°F
  • 79°F
AM Showers
AM Showers
  • Precip. probability: 43%
  • Precipitation: 0.12"
  • Wind: 8mphE 89°
  • Humidity: 83%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:56 pm ChST
  • ▼
Tomorrow, in Hagåtña, patchy morning showers will bring occasional rain.
Minimal precipitation is anticipated. Temperature readings will slightly shift from a daytime peak of a tropical 86°F to a nighttime low of a temperate 78.8°F.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is calculated to be a steamy 102.2°F. Note that heat index values are valued for light wind and location in the shade. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The maximum temperature is forecasted to match the regular October high of 84.4°F.
Sunrise will be at 6:13 am and sunset at 5:56 pm; tomorrow's daylight will last for 11h and 44min.

Long-term weather forecast

  • Saturday
  • Oct 24, 2026
  • 86°F
  • 79°F
Showers
Showers
  • Precip. probability: 40%
  • Precipitation: 0"
  • Wind: 9mphE 92°
  • Humidity: 81%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:57 pm ChST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 86°F
  • 79°F
AM Showers
AM Showers
  • Precip. probability: 43%
  • Precipitation: 0.12"
  • Wind: 8mphE 89°
  • Humidity: 83%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:56 pm ChST
  • ▼
  • Monday
  • Oct 26, 2026
  • 86°F
  • 79°F
AM Showers
AM Showers
  • Precip. probability: 38%
  • Precipitation: 0.08"
  • Wind: 13mphE 84°
  • Humidity: 80%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:56 pm ChST
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 86°F
  • 79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0.08"
  • Wind: 7mphENE 78°
  • Humidity: 76%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:56 pm ChST
  • ▼
  • Wednesday
  • Oct 28, 2026
  • 86°F
  • 79°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 6mphNE 54°
  • Humidity: 78%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:55 pm ChST
  • ▼
  • Thursday
  • Oct 29, 2026
  • 86°F
  • 79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 12mphNE 52°
  • Humidity: 78%
  • UV index: 11
  • Sunrise: 6:14 am ChST
  • Sunset: 5:55 pm ChST
  • ▼
  • Friday
  • Oct 30, 2026
  • 86°F
  • 79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 9mphNE 44°
  • Humidity: 75%
  • UV index: 11
  • Sunrise: 6:14 am ChST
  • Sunset: 5:54 pm ChST
  • ▼
  • Saturday
  • Oct 31, 2026
  • 86°F
  • 79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 8mphE 97°
  • Humidity: 77%
  • UV index: 11
  • Sunrise: 6:14 am ChST
  • Sunset: 5:54 pm ChST
  • ▼
  • Sunday
  • Nov 1, 2026
  • 86°F
  • 79°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 7mphNE 51°
  • Humidity: 77%
  • UV index: 9
  • Sunrise: 6:15 am ChST
  • Sunset: 5:54 pm ChST
  • ▼
  • Monday
  • Nov 2, 2026
  • 84°F
  • 79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 10mphENE 58°
  • Humidity: 79%
  • UV index: 11
  • Sunrise: 6:15 am ChST
  • Sunset: 5:53 pm ChST
  • ▼
Looking ahead, conditions suggest a period of cloudy, damp and mostly clear weather is forecasted.
Rainfall is predicted for Sunday and Monday.
The maximum temperature will be almost identical in the forecast period ahead. Maximum temperatures will fall between 84.2°F and 86°F, while the minimum temperature will hold steady at 78.8°F.
Maximum temperatures during the upcoming ten days will remain around 86°F nearly every day; next Monday will be the coldest day, with the highest temperature of 84.2°F.
Taking the humidity into consideration, the maximum feel-like temperature may increase greatly and vary between a fiery hot 95°F and a sweltering 102.2°F.
Updated: Oct 23, 2026 @ 15:43:06 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, showers are expected at times, with breaks in the rain later in the day.

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

Today, the highest temperature in Hagåtña will be 86°F, while the lowest temperature will be 78.8°F. The maximum heat index, which integrates air moisture with ambient temperature, is assessed at 100.4°F.
Today, the highest temperature will be in line with the average maximum temperature in October. Today, the lowest temperature will be a couple of degrees lower than the average low temperature.

On Saturday, in Hagåtña, sunrise will be at 6:13 am and sunset at 5:57 pm (ChST).

In Hagåtña, the length of the day today will be 11h and 44min.

Tomorrow, occasional showers are expected in the morning.

Tomorrow, there is a low chance of minimal precipitation in Hagåtña.

Tomorrow, the maximum temperature will be 86°F, while the minimum temperature will be 78.8°F. The maximum heat index, which combines air temperature and relative humidity, is calculated to be 102.2°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature will be slightly cooler than the average low of 82.6°F.

On Sunday, in Hagåtña, sunrise will be at 6:13 am and sunset at 5:56 pm (ChST).

In Hagåtña, the length of the day tomorrow will be 11h and 44min.