Weather forecast for tomorrow
Arroyo, PR

Weather forecast for tomorrow

Friday, Apr 18.

Thunderstorms
6:04 am

6:42 pm
AST
Thunderstorms
84°F / 73°F
  • Wind: 9mph ENE
  • Humidity: 80%
  • Precip. probability: 93%
  • Precipitation: 0.83"
  • UV index: 11
Tomorrow, unstable weather may lead to more thunderstorms.
Elevated precipitation of 0.83" is anticipated. The temperature will vary between a maximum of a warm 84.2°F and a minimum of a temperate 73.4°F.
The maximum heat index, which factors the actual air temperature with the relative humidity, is evaluated at a torrid 95°F. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
The expected maximum is forecasted to be in line with the regular April temperature of 81.9°F.
Sunrise will be at 6:04 am and sunset at 6:42 pm; tomorrow's daylight will last for 12h and 38min.

Frequently asked questions

What is the weather forecast for Arroyo for tomorrow?
Tomorrow, scattered thunderstorms are expected to form.
Will it rain tomorrow?
Yes. With a probability of 93%, substantial precipitation of 0.83" is predicted.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature in Arroyo will be 84.2°F, while the lowest temperature will be 73.4°F. The maximum heat index, which reflects the perceived temperature due to humidity levels, is computed to be 95°F.
The highest temperature will be in line with the average maximum of 81.9°F in April. The lowest temperature will be also in line with the average low of 73°F.
When are sunrise and sunset tomorrow?
On Friday, in Arroyo, sunrise will be at 6:04 am and sunset at 6:42 pm (AST).
How long will the day be tomorrow?
In Arroyo, the length of the day tomorrow will be 12h and 38min.

Hourly weather forecast

12 am
  • 77°F
  • Feels like:
    81°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 2mph NE
  • Pressure: 29.97"Hg
  • Humidity: 90%
  • Precip. probability: 42%
  • Precipitation: 0.04"
  • Visibility: 6mi
2 am
  • 77°F
  • Feels like:
    81°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 2mph N
  • Pressure: 29.94"Hg
  • Humidity: 90%
  • Precip. probability: 47%
  • Precipitation: 0.08"
  • Visibility: 4mi
4 am
  • 75°F
  • Feels like:
    79°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 2mph N
  • Pressure: 29.91"Hg
  • Humidity: 93%
  • Precip. probability: 44%
  • Precipitation: 0.04"
  • Visibility: 2mi
6 am
  • 73°F
  • Feels like:
    79°F
Partly Cloudy
Partly Cloudy
  • Wind: 2mph NNE
  • Pressure: 29.94"Hg
  • Humidity: 93%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 7mi
Sunrise: 6:04 am
8 am
  • 79°F
  • Feels like:
    84°F
Partly Cloudy
Partly Cloudy
  • Wind: 3mph ENE
  • Pressure: 30"Hg
  • Humidity: 84%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 82°F
  • Feels like:
    90°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph E
  • Pressure: 30"Hg
  • Humidity: 74%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 82°F
  • Feels like:
    90°F
Thunderstorms
Thunderstorms
  • Wind: 8mph E
  • Pressure: 30"Hg
  • Humidity: 76%
  • Precip. probability: 75%
  • Precipitation: 0.04"
  • Visibility: 6mi
2 pm
  • 82°F
  • Feels like:
    90°F
Thunderstorms
Thunderstorms
  • Wind: 9mph E
  • Pressure: 29.97"Hg
  • Humidity: 77%
  • Precip. probability: 71%
  • Precipitation: 0.12"
  • Visibility: 4mi
4 pm
  • 81°F
  • Feels like:
    88°F
Thunderstorms
Thunderstorms
  • Wind: 7mph E
  • Pressure: 29.97"Hg
  • Humidity: 82%
  • Precip. probability: 73%
  • Precipitation: 0.31"
  • Visibility: 6mi
6 pm
  • 79°F
  • Feels like:
    84°F
Showers
Showers
  • Wind: 6mph NE
  • Pressure: 29.97"Hg
  • Humidity: 84%
  • Precip. probability: 40%
  • Precipitation: 0.04"
  • Visibility: 7mi
Sunset: 6:42 pm
8 pm
  • 77°F
  • Feels like:
    82°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph NNE
  • Pressure: 29.97"Hg
  • Humidity: 90%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 9mi
10 pm
  • 77°F
  • Feels like:
    81°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph NNE
  • Pressure: 30"Hg
  • Humidity: 90%
  • Precip. probability: 10%
  • Precipitation: 0"
  • Visibility: 9mi
Tomorrow, a combination of cloudy, unstable and rain-soaked weather is anticipated.
Rain is anticipated at 12 am, and from 2 am to 5 am, and from 11 am to 6 pm. With moderate precipitation of 0.31", most rainfall is expected at 4 pm.
The temperature will be between the lowest temperature of 73.4°F and the highest temperature of 84.2°F. The feels-like temperature will vary between the lowest temperature of 78.8°F and the highest temperature of 91.4°F. The hottest part of the day is expected around 11 am.
The forecasted high will be in line with the typical April maximum of 81.9°F. The temperature low is forecasted to be also comparable to the usual April value of 73°F.
Updated: Apr 17, 2025 @ 18:02:41 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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