Weather forecast for tomorrowHagåtña, GU

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 82°F
  • 79°F
Showers
Showers
  • Precip. probability: 97%
  • Precipitation: 0.63"
  • Wind: 19mphSSE 147°
  • Humidity: 89%
  • UV index: 6
  • Sunrise: 6:12 am ChST
  • Sunset: 5:59 pm ChST
  • ▼
Tomorrow, in Hagåtña, showers are expected, with occasional breaks in the rain throughout the day.
With a high probability, moderate precipitation is predicted. Day and night temperatures will present a subtle variation, fluctuating between a warm 82.4°F and a moderately hot 78.8°F.
The maximum heat index, which indicates how humid air affects the felt temperature, is estimated at a hot 93.2°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The high temperature is expected to match October's standard maximum of 84.4°F.
Sunrise will be at 6:12 am and sunset at 5:59 pm; tomorrow's daylight will last for 11h and 48min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 93°C.
Coldest period: 12 am - 3 am 88°C.

Chance of precipitation

Highest chance: 12 am 79%.

Hourly weather forecast

  • 12 am
  • 81°F
  • Feels like:
    88°F
Showers / Wind
Showers / Wind
  • Precip. probability: 79%
  • Precipitation: 0.04"
  • Wind: 21mphSE 139°
  • Humidity: 91%
  • Pressure: 29.74"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
  • 2 am
  • 81°F
  • Feels like:
    88°F
Showers / Wind
Showers / Wind
  • Precip. probability: 74%
  • Precipitation: 0.04"
  • Wind: 22mphSE 138°
  • Humidity: 91%
  • Pressure: 29.71"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 4 am
  • 79°F
  • Feels like:
    88°F
Showers
Showers
  • Precip. probability: 51%
  • Precipitation: 0.16"
  • Wind: 19mphSE 138°
  • Humidity: 93%
  • Pressure: 29.74"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 6 am
  • 81°F
  • Feels like:
    90°F
Showers
Showers
  • Precip. probability: 56%
  • Precipitation: 0.08"
  • Wind: 18mphSE 144°
  • Humidity: 91%
  • Pressure: 29.77"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunrise: 6:12 am
  • 8 am
  • 81°F
  • Feels like:
    90°F
Showers
Showers
  • Precip. probability: 62%
  • Precipitation: 0.08"
  • Wind: 19mphSSE 148°
  • Humidity: 92%
  • Pressure: 29.83"Hg
  • Visibility: 7mi
  • UV index: 1
  • ▼
  • 10 am
  • 81°F
  • Feels like:
    91°F
Showers
Showers
  • Precip. probability: 57%
  • Precipitation: 0.04"
  • Wind: 18mphSSE 149°
  • Humidity: 91%
  • Pressure: 29.83"Hg
  • Visibility: 7mi
  • UV index: 4
  • ▼
  • 12 pm
  • 81°F
  • Feels like:
    91°F
Showers
Showers
  • Precip. probability: 68%
  • Precipitation: 0.08"
  • Wind: 19mphSSE 152°
  • Humidity: 91%
  • Pressure: 29.83"Hg
  • Visibility: 7mi
  • UV index: 6
  • ▼
  • 2 pm
  • 82°F
  • Feels like:
    93°F
Showers
Showers
  • Precip. probability: 53%
  • Precipitation: 0.04"
  • Wind: 18mphSSE 147°
  • Humidity: 88%
  • Pressure: 29.77"Hg
  • Visibility: 6mi
  • UV index: 4
  • ▼
  • 4 pm
  • 82°F
  • Feels like:
    93°F
Showers
Showers
  • Precip. probability: 40%
  • Precipitation: 0.04"
  • Wind: 16mphSE 143°
  • Humidity: 85%
  • Pressure: 29.8"Hg
  • Visibility: 7mi
  • UV index: 1
  • ▼
Sunset: 5:59 pm
  • 6 pm
  • 81°F
  • Feels like:
    91°F
Cloudy
Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 14mphSE 141°
  • Humidity: 88%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 81°F
  • Feels like:
    90°F
Cloudy
Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 11mphSE 127°
  • Humidity: 89%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 81°F
  • Feels like:
    90°F
Cloudy
Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 11mphSE 124°
  • Humidity: 90%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, a combination of primarily rainy and occasionally overcast and storm-filled weather is forecasted.
Rainfall is forecasted from 12 am to 5 pm. With moderate precipitation of 0.2", most rainfall is expected at 11 am.
The temperature difference throughout the day will be unnoticeable, with the lowest temperature of 78.8°F and the highest temperature of 82.4°F. The feels-like temperature difference will be unnoticeable, with a minimum of 87.8°F and a maximum of 93.2°F. The warmest part of the day will be from 1 pm to 5 pm.
The maximum temperature will be consistent with the average high of 84.4°F in October. The lowest temperature is expected to be also a couple of degrees lower than the average minimum in October, typically 82.6°F.
Updated: Oct 18, 2026 @ 11:08:21 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, expect intermittent showers, with dry spells in between.

Moderate precipitation of 0.63" is anticipated. The possibility of rainfall is high at 97%.

Tomorrow, the highest temperature will be 82.4°F, while the lowest temperature will be 78.8°F. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is appraised at 93.2°F.
The maximum temperature will be in line with the average highest temperature of 84.4°F in October. The lowest temperature will be a couple of degrees lower than the average low of 82.6°F.

On Monday, in Hagåtña, sunrise will be at 6:12 am and sunset at 5:59 pm (ChST).

In Hagåtña, Guam, the length of the day tomorrow will be 11h and 48min.