Weather forecast for 10 daysHagåtña, GU

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 82°F
  • 79°F
Heavy Rain / Wind
Heavy Rain / Wind
  • Precip. probability: 99%
  • Precipitation: 4.45"
  • Wind: 68mphSE 136°
  • Humidity: 94%
  • UV index: 6
  • Sunrise: 6:11 am ChST
  • Sunset: 6:00 pm ChST
  • ▼
On Sunday, October 18, wind-driven rainfall is anticipated, requiring rain gear and extra caution on the roads.
Extreme precipitation of 4.45" is forecasted for tomorrow. A narrow temperature span is predicted, from a high of a moderately hot 82.4°F to a 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 blazing 93.2°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
Tomorrow's top temperature is set to align with the common October high of 84.4°F.
Sunrise will be at 6:11 am and sunset at 6:00 pm; tomorrow's daylight will last for 11h and 49min.

10-day overview

Daily temperatures

Maximum temperature: 86°C.
Coldest period: tomorrow - Monday 82°C.

Chance of precipitation

Highest chance: today 100%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 79°F
Heavy Rain / Wind
Heavy Rain / Wind
  • Precip. probability: 100%
  • Precipitation: 2.83"
  • Wind: 76mphNE 43°
  • Humidity: 92%
  • UV index: 0
  • Sunrise: 6:11 am ChST
  • Sunset: 6:01 pm ChST
  • ▼
  • Sunday
  • Oct 18, 2026
  • 82°F
  • 79°F
Heavy Rain / Wind
Heavy Rain / Wind
  • Precip. probability: 99%
  • Precipitation: 4.45"
  • Wind: 68mphSE 136°
  • Humidity: 94%
  • UV index: 6
  • Sunrise: 6:11 am ChST
  • Sunset: 6:00 pm ChST
  • ▼
  • Monday
  • Oct 19, 2026
  • 82°F
  • 81°F
Showers / Wind
Showers / Wind
  • Precip. probability: 92%
  • Precipitation: 0.63"
  • Wind: 21mphSSE 151°
  • Humidity: 89%
  • UV index: 6
  • Sunrise: 6:12 am ChST
  • Sunset: 5:59 pm ChST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 86°F
  • 79°F
PM Showers
PM Showers
  • Precip. probability: 34%
  • Precipitation: 0.08"
  • Wind: 12mphESE 110°
  • Humidity: 81%
  • UV index: 10
  • Sunrise: 6:12 am ChST
  • Sunset: 5:59 pm ChST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 86°F
  • 79°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0.04"
  • Wind: 11mphNE 55°
  • Humidity: 81%
  • UV index: 10
  • Sunrise: 6:12 am ChST
  • Sunset: 5:58 pm ChST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 86°F
  • 79°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 24%
  • Precipitation: 0.08"
  • Wind: 12mphNE 54°
  • Humidity: 81%
  • UV index: 11
  • Sunrise: 6:12 am ChST
  • Sunset: 5:58 pm ChST
  • ▼
  • Friday
  • Oct 23, 2026
  • 84°F
  • 79°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 32%
  • Precipitation: 0.16"
  • Wind: 12mphENE 64°
  • Humidity: 82%
  • UV index: 11
  • Sunrise: 6:12 am ChST
  • Sunset: 5:57 pm ChST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 86°F
  • 79°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 52%
  • Precipitation: 0.31"
  • Wind: 10mphENE 73°
  • Humidity: 83%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:57 pm ChST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 84°F
  • 79°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 39%
  • Precipitation: 0.28"
  • Wind: 7mphE 80°
  • Humidity: 82%
  • UV index: 10
  • Sunrise: 6:13 am ChST
  • Sunset: 5:56 pm ChST
  • ▼
  • Monday
  • Oct 26, 2026
  • 86°F
  • 79°F
Showers
Showers
  • Precip. probability: 44%
  • Precipitation: 0.12"
  • Wind: 6mphENE 70°
  • Humidity: 81%
  • UV index: 11
  • Sunrise: 6:13 am ChST
  • Sunset: 5:56 pm ChST
  • ▼
The weather will be unstable for the next ten days, and a mix of rainy, thunderstorm-prone, cloudy and sunny weather is forecasted.
Rain is predicted day-to-day, with daily precipitation varying from a minimal 0.04" to a maximum of 4.45".
The maximum temperature will be very similar in the coming days. The maximum temperature will vary between 82.4°F and 86°F, while the overnight low will be also nearly unchanged, as the minimum temperature is expected to range between 78.8°F and 80.6°F.
With a maximum temperature of 86°F, Tuesday through Thursday, next Saturday and Monday will be the hottest days in Hagåtña; the coldest days will be Sunday and Monday, with a maximum of 82.4°F.
Combining with the humidity, the maximum feel-like temperature may increase substantially and range between a hot 93.2°F and a torrid 102.2°F.
Updated: Oct 17, 2026 @ 13:36:55 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Hagåtña, windy and rainy conditions are expected, increasing the risk of water pooling on roads.

Yes, it will rain tomorrow. Weather alert - extreme precipitation of 4.45" is predicted.

Tomorrow, the maximum temperature will be 82.4°F, while the minimum temperature will be 78.8°F. The maximum heat index, which measures the combined effect of heat and moisture, is assessed at 93.2°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature tomorrow will be a couple of degrees lower than the average low temperature.

On Sunday, in Hagåtña, sunrise will be at 6:11 am and sunset at 6:00 pm (ChST).

In Hagåtña, the length of the day tomorrow will be 11h and 49min.