| NWS Forecast for: San Juan and Vicinity Issued by: National Weather Service San Juan, PR Last Update: 243 AM AST Mon Apr 20 2026 | |
| Today: Variably cloudy with isolated showers this morning, then mostly cloudy with scattered showers with isolated thunderstorms this afternoon. Highs around 87. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. Tonight: Partly cloudy with isolated showers in the evening, then variably cloudy with scattered showers after midnight. Lows around 80. East winds 5 to 10 mph. Chance of rain 40 percent. Tuesday: Partly cloudy with isolated showers. Highs around 88. East winds 10 to 15 mph. Chance of rain 20 percent. Tuesday Night: Partly cloudy with isolated showers in the evening, then variably cloudy with scattered showers after midnight. Lows around 80. East winds 5 to 10 mph. Chance of rain 40 percent. Wednesday: Variably cloudy with scattered showers. Isolated thunderstorms in the afternoon. Highs around 87. Northeast winds 5 to 10 mph. Chance of rain 40 percent. Wednesday Night: Partly cloudy with isolated showers. Lows around 80. Chance of rain less than 20 percent. Thursday: Partly cloudy with isolated showers in the morning, then variably cloudy with scattered showers in the afternoon. Highs around 87. Chance of rain 40 percent. Thursday Night: Variably cloudy with scattered showers. Lows around 80. Chance of rain 30 percent. Friday: Partly cloudy with isolated showers in the morning, then mostly cloudy with numerous showers with isolated thunderstorms in the afternoon. Highs around 86. Chance of rain 60 percent. Friday Night: Partly cloudy with isolated showers. Lows around 80. Chance of rain 20 percent. Saturday: Partly cloudy with isolated showers in the morning, then mostly cloudy with scattered showers with isolated thunderstorms in the afternoon. Highs around 87. Chance of rain 50 percent. Saturday Night: Partly cloudy with isolated showers. Lows around 80. Chance of rain 20 percent. Sunday: Partly cloudy with isolated showers in the morning, then mostly cloudy with numerous showers with isolated thunderstorms in the afternoon. Highs around 87. Chance of rain 60 percent. | |
| Zone Forecast: San Juan and Vicinity | |
Visit your local NWS office at: https://www.weather.gov/sju |