Weather forecast for tomorrow
Puerto Rico, USA

Weather forecast for tomorrow

Thursday, Apr 17.

Showers
06:04

18:43
AST
Showers
86°F / 73°F
  • Wind: 12mph ESE
  • Humidity: 70%
  • Precip. probability: 43%
  • Precipitation: 0.16"
  • UV index: 11
Tomorrow, in San Juan, showers are expected to spread throughout the day, with the heaviest rain expected in the morning.
The likelihood of rainfall is low, and light precipitation is anticipated. Temperatures are predicted to peak at a hot 86°F and drop to a minimum of a temperate 73.4°F.
The maximum heat index, which combines air temperature and relative humidity, is estimated at a sizzling 95°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Forecasts suggest the maximum temperature will be a few degrees higher than April's average of 81.1°F.
Sunrise will be at 6:04 am and sunset at 6:43 pm; tomorrow's daylight will last for 12h and 38min.

Hourly weather forecast

0h
  • 77°F
  • Feels like:
    82°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 3mph SE
  • Pressure: 29.97"Hg
  • Humidity: 79%
  • Precip. probability: 4%
  • Precipitation: 0"
  • Visibility: 10mi
2h
  • 77°F
  • Feels like:
    81°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 2mph SE
  • Pressure: 29.94"Hg
  • Humidity: 82%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
4h
  • 75°F
  • Feels like:
    81°F
Partly Cloudy
Partly Cloudy
  • Wind: 2mph SSE
  • Pressure: 29.94"Hg
  • Humidity: 85%
  • Precip. probability: 12%
  • Precipitation: 0"
  • Visibility: 10mi
6h
  • 75°F
  • Feels like:
    81°F
Partly Cloudy
Partly Cloudy
  • Wind: 2mph SSE
  • Pressure: 29.94"Hg
  • Humidity: 86%
  • Precip. probability: 17%
  • Precipitation: 0"
  • Visibility: 9mi
8h
  • 79°F
  • Feels like:
    84°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph SE
  • Pressure: 29.97"Hg
  • Humidity: 79%
  • Precip. probability: 11%
  • Precipitation: 0"
  • Visibility: 10mi
10h
  • 84°F
  • Feels like:
    90°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph ESE
  • Pressure: 29.97"Hg
  • Humidity: 66%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
12h
  • 86°F
  • Feels like:
    91°F
Showers
Showers
  • Wind: 12mph E
  • Pressure: 29.94"Hg
  • Humidity: 66%
  • Precip. probability: 41%
  • Precipitation: 0.04"
  • Visibility: 7mi
14h
  • 86°F
  • Feels like:
    93°F
Showers
Showers
  • Wind: 12mph E
  • Pressure: 29.91"Hg
  • Humidity: 66%
  • Precip. probability: 44%
  • Precipitation: 0.04"
  • Visibility: 7mi
16h
  • 84°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph E
  • Pressure: 29.88"Hg
  • Humidity: 70%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
18h
  • 82°F
  • Feels like:
    88°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph ESE
  • Pressure: 29.91"Hg
  • Humidity: 73%
  • Precip. probability: 17%
  • Precipitation: 0"
  • Visibility: 10mi
20h
  • 81°F
  • Feels like:
    86°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph ESE
  • Pressure: 29.94"Hg
  • Humidity: 79%
  • Precip. probability: 17%
  • Precipitation: 0"
  • Visibility: 10mi
22h
  • 79°F
  • Feels like:
    84°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph SE
  • Pressure: 29.97"Hg
  • Humidity: 85%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, on Thursday, primarily cloud-filled and occasionally wet weather is anticipated.
With minimal precipitation of 0.04", rainfall is predicted from 11 am to 3 pm and at 5 pm.
The temperature will vary between a minimum of 75.2°F and a maximum of 86°F. The feels-like temperature will be between the lowest temperature of 80.6°F and the highest temperature of 93.2°F. The hottest part of the day will be from noon to 2 pm.
The highest temperature will be moderately higher than April's average maximum of 81.1°F. The night temperature will be also comparable to the standard April low of 75.2°F.
Updated: Apr 16, 2025 @ 17:45:27 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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