Weather forecast for tomorrowAgat, GU
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 82°F
- 79°F
Heavy Rain / Wind
- Precip. probability: 100%
- Precipitation: 4.69"
- Wind: 77mphSE 140°
- Humidity: 94%
- UV index: 4
- Sunrise: 6:12 am ChST
- Sunset: 6:00 pm ChST
- details ▼
On Sunday, October 18, wind-driven rainfall is also anticipated, requiring rain gear and extra caution on the roads.
Extreme precipitation of 4.69" is expected for tomorrow. Modest temperature shifts from a high of a moderately hot 82.4°F to a low of a warm 78.8°F are predicted.
The maximum heat index, which represents the influence of relative humidity on air temperature, is evaluated at a tropical 93.2°F. Note that heat index values are valued for light wind and location in the shade.
Expect the maximum temperature to remain consistent with the typical October high of 84.4°F.
Sunrise will be at 6:12 am and sunset at 6:00 pm; tomorrow's daylight will last for 11h and 49min.
Extreme precipitation of 4.69" is expected for tomorrow. Modest temperature shifts from a high of a moderately hot 82.4°F to a low of a warm 78.8°F are predicted.
The maximum heat index, which represents the influence of relative humidity on air temperature, is evaluated at a tropical 93.2°F. Note that heat index values are valued for light wind and location in the shade.
Expect the maximum temperature to remain consistent with the typical October high of 84.4°F.
Sunrise will be at 6:12 am and sunset at 6:00 pm; tomorrow's daylight will last for 11h and 49min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 93°C.
Coldest period: 12 am - 6 am 90°C.
Coldest period: 12 am - 6 am 90°C.
Chance of precipitation
Highest chance: 12 am 73%.
Hourly weather forecast
- 12 am
- 81°F
- Feels like:90°F
Showers / Wind
- Precip. probability: 73%
- Precipitation: 0.16"
- Wind: 25mphSE 145°
- Humidity: 91%
- Pressure: 29.68"Hg
- Visibility: 4mi
- UV index: 0
- details ▼
- 2 am
- 81°F
- Feels like:88°F
Showers / Wind
- Precip. probability: 67%
- Precipitation: 0.12"
- Wind: 25mphSSE 148°
- Humidity: 91%
- Pressure: 29.68"Hg
- Visibility: 7mi
- UV index: 0
- details ▼
- 4 am
- 81°F
- Feels like:88°F
Thunderstorms / Wind
- Precip. probability: 62%
- Precipitation: 0.08"
- Wind: 24mphSSE 148°
- Humidity: 92%
- Pressure: 29.68"Hg
- Visibility: 6mi
- UV index: 0
- details ▼
- 6 am
- 81°F
- Feels like:90°F
Showers / Wind
- Precip. probability: 49%
- Precipitation: 0.04"
- Wind: 22mphSSE 150°
- Humidity: 89%
- Pressure: 29.71"Hg
- Visibility: 7mi
- UV index: 0
- details ▼
Sunrise: 6:12 am
- 8 am
- 81°F
- Feels like:91°F
Showers / Wind
- Precip. probability: 73%
- Precipitation: 0.12"
- Wind: 22mphSSE 152°
- Humidity: 90%
- Pressure: 29.77"Hg
- Visibility: 7mi
- UV index: 1
- details ▼
- 10 am
- 82°F
- Feels like:93°F
Showers / Wind
- Precip. probability: 62%
- Precipitation: 0.04"
- Wind: 22mphSSE 152°
- Humidity: 87%
- Pressure: 29.8"Hg
- Visibility: 7mi
- UV index: 4
- details ▼
- 12 pm
- 82°F
- Feels like:91°F
Showers / Wind
- Precip. probability: 62%
- Precipitation: 0.08"
- Wind: 23mphSSE 154°
- Humidity: 88%
- Pressure: 29.8"Hg
- Visibility: 7mi
- UV index: 6
- details ▼
- 2 pm
- 82°F
- Feels like:91°F
Showers / Wind
- Precip. probability: 62%
- Precipitation: 0.08"
- Wind: 22mphSSE 154°
- Humidity: 88%
- Pressure: 29.77"Hg
- Visibility: 6mi
- UV index: 4
- details ▼
- 4 pm
- 82°F
- Feels like:91°F
Showers
- Precip. probability: 54%
- Precipitation: 0.04"
- Wind: 18mphSSE 153°
- Humidity: 88%
- Pressure: 29.77"Hg
- Visibility: 7mi
- UV index: 1
- details ▼
- 6 pm
- 81°F
- Feels like:91°F
Showers
- Precip. probability: 44%
- Precipitation: 0.04"
- Wind: 17mphSSE 148°
- Humidity: 88%
- Pressure: 29.8"Hg
- Visibility: 7mi
- UV index: 0
- details ▼
Sunset: 6:00 pm
- 8 pm
- 81°F
- Feels like:90°F
Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 15mphSE 140°
- Humidity: 88%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 81°F
- Feels like:90°F
Cloudy
- Precip. probability: 23%
- Precipitation: 0"
- Wind: 13mphSE 134°
- Humidity: 88%
- Pressure: 29.85"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
Tomorrow, a combination of primarily showery and occasionally overcast and thunderstorm-prone weather is expected.
Rainfall is anticipated from 12 am to 7 pm and at 9 pm. With moderate precipitation of 0.16", most rainfall is expected at 12 am.
The temperature difference throughout the day will be indistinguishable, with the lowest temperature of 80.6°F and the highest temperature of 82.4°F. The feels-like temperature variation will be indistinguishable, with the lowest temperature of 87.8°F and the highest temperature of 93.2°F.
Tomorrow, the forecasted high aligns resembling the average peak 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.
Rainfall is anticipated from 12 am to 7 pm and at 9 pm. With moderate precipitation of 0.16", most rainfall is expected at 12 am.
The temperature difference throughout the day will be indistinguishable, with the lowest temperature of 80.6°F and the highest temperature of 82.4°F. The feels-like temperature variation will be indistinguishable, with the lowest temperature of 87.8°F and the highest temperature of 93.2°F.
Tomorrow, the forecasted high aligns resembling the average peak 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 17, 2026 @ 13:50:13 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
On Sunday, windy and rainy conditions are expected, increasing the risk of water pooling on roads.
Yes, it will rain tomorrow. Weather alert - damaging precipitation of 4.69" is forecasted.
Tomorrow, the highest temperature in Agat 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 computed to be 93.2°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature will be a couple of degrees lower than the average low of 82.6°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature will be a couple of degrees lower than the average low of 82.6°F.
On Sunday, in Agat, sunrise will be at 6:12 am and sunset at 6:00 pm (ChST).
In Agat, the length of the day tomorrow will be 11h and 49min.





