Weather forecast for 10 days
Arroyo, PR

Today, on Saturday, May 18, the sky will be partially clouded.
Temperatures will oscillate between a hot 87.8°F (31°C) at their highest and a moderately hot 77°F (25°C) at their lowest.
The maximum heat index, which combines air temperature and relative humidity, is appraised at a torrid 100.4°F (38°C). Take into consideration that the heat index values are calculated for shade and light wind conditions. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Today's maximum temperature will be relatively higher than the average high temperature during May.
Sunrise was at 5:50 am and sunset will be at 6:51 pm; the daylight will last for 13h and 1min.

Tomorrow, in Arroyo, a primarily bright and cloudless sky is also expected.
Minimal precipitation is anticipated. Day and night temperatures will present a subtle difference, from a maximum of a hot 87.8°F (31°C) to a minimum of a moderately hot 78.8°F (26°C).
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is evaluated at an extremely hot 104°F (40°C). Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
The highest temperature tomorrow will be a few degrees higher than May's average maximum temperature.
Sunrise will be at 5:49 am and sunset at 6:51 pm; tomorrow's daylight will last for 13h and 2min.

The weather will be unstable for the next ten days, and a mix of rainy, stormy, cloudy and sunny weather is forecasted.
Rainfall is forecasted for Sunday through next Monday. With moderate precipitation of 0.55" (14mm), most rainfall is expected on Wednesday.
The maximum temperature will be almost identical in the next ten days. The maximum temperature will vary between 86°F (30°C) and 89.6°F (32°C), while the lowest nightly temperature will be also almost identical, as the lowest temperature will vary between 77°F (25°C) and 78.8°F (26°C).
The hottest day will be Monday, with a maximum of 89.6°F (32°C); with a maximum temperature of 86°F (30°C), Wednesday through Friday will be the coldest days.
Including the humidity's impact, the maximum feel-like temperature may increase substantially and vary between a very hot 98.6°F (37°C) and an extremely hot 107.6°F (42°C).