| NWS Forecast for: San Juan and Vicinity Issued by: National Weather Service San Juan, PR Last Update: 243 PM AST Thu Apr 16 2026 | |
| Tonight: Mostly cloudy, then becoming partly cloudy after midnight, then becoming mostly cloudy. Isolated thunderstorms this evening. Numerous showers. Lows around 80. East winds 10 to 15 mph. Chance of rain 70 percent. Friday: Cloudy. Numerous showers with isolated thunderstorms in the morning, then showers and scattered thunderstorms in the afternoon. Highs around 87. East winds 10 to 15 mph. Chance of rain 90 percent. Friday Night: Mostly cloudy. Numerous showers with isolated thunderstorms in the evening, then scattered showers after midnight. Lows around 80. East winds 5 to 10 mph. Chance of rain 70 percent. Saturday: Variably cloudy with scattered showers. Highs around 86. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. Saturday Night: Variably cloudy with scattered showers in the evening, then mostly cloudy with numerous showers after midnight. Lows around 80. East winds 5 to 10 mph. Chance of rain 60 percent. Sunday: Partly cloudy with isolated showers. Highs around 87. Chance of rain 20 percent. Sunday Night: Partly cloudy with isolated showers. Lows around 80. Chance of rain less than 20 percent. Monday: Partly cloudy with isolated showers in the morning, then variably cloudy with scattered showers in the afternoon. Highs around 86. Chance of rain 40 percent. Monday Night: Partly cloudy with isolated showers. Lows around 80. Chance of rain 20 percent. Tuesday: Variably cloudy with scattered showers. Highs around 87. Chance of rain 40 percent. Tuesday Night: Variably cloudy with scattered showers. Lows around 80. Chance of rain 40 percent. Wednesday: Mostly cloudy in the morning, then becoming variably cloudy. Scattered showers. Isolated thunderstorms in the afternoon. Highs around 87. Chance of rain 50 percent. Wednesday Night: Partly cloudy with isolated showers. Lows around 80. Chance of rain 20 percent. Thursday: Variably cloudy. Isolated showers in the morning, then scattered showers in the afternoon. Highs around 88. Chance of rain 40 percent. | |
| Zone Forecast: San Juan and Vicinity | |
Visit your local NWS office at: https://www.weather.gov/sju |