San Martín, San Juan, PR | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Friday
    50% Chance of Storms
    80°
    Forecast night icon
    Night
    50% Chance Rain Showers
    72°
    Friday 4/19
    Day
    80°
    50% Chance of Storms
    Forecast day icon
    Night
    72°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy then becoming partly cloudy late this morning then becoming mostly cloudy. Scattered showers. Isolated thunderstorms this afternoon. Highs around 85. Northeast winds 5 to 10 mph. Chance of rain 50 percent.
    Night Details
    Mostly cloudy in the evening then becoming variably cloudy. Scattered showers. Lows around 78. Northeast winds 5 to 10 mph. Chance of rain 50 percent.
  • Forecast day icon
    Saturday
    50% Chance Rain Showers
    81°
    Forecast night icon
    Night
    30% Chance Rain Showers
    74°
    Saturday 4/20
    Day
    81°
    50% Chance Rain Showers
    Forecast day icon
    Night
    74°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Variably cloudy with isolated showers in the morning then mostly cloudy with scattered showers in the afternoon. Highs around 84. Northeast winds 10 to 15 mph. Chance of rain 50 percent.
    Night Details
    Variably cloudy. Scattered showers mainly in the evening. Lows around 76. Northeast winds 5 to 10 mph. Chance of rain 30 percent.
  • Forecast day icon
    Sunday
    50% Chance of Storms
    81°
    Forecast night icon
    Night
    50% Chance Rain Showers
    74°
    Sunday 4/21
    Day
    81°
    50% Chance of Storms
    Forecast day icon
    Night
    74°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with scattered showers. Isolated thunderstorms in the afternoon. Highs around 85. East winds 10 to 15 mph. Chance of rain 50 percent.
    Night Details
    Mostly cloudy with scattered showers. Lows around 78. Chance of rain 50 percent.
  • Forecast day icon
    Monday
    60% Chance of Storms
    83°
    Forecast night icon
    Night
    60% Chance Rain Showers
    74°
    Monday 4/22
    Day
    83°
    60% Chance of Storms
    Forecast day icon
    Night
    74°
    60% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Variably cloudy with scattered showers in the morning then mostly cloudy with numerous showers with isolated thunderstorms in the afternoon. Highs around 90. Chance of rain 60 percent.
    Night Details
    Mostly cloudy with numerous showers. Lows around 77. Chance of rain 60 percent.
  • Forecast day icon
    Tuesday
    60% Chance of Storms
    84°
    Forecast night icon
    Night
    50% Chance Rain Showers
    73°
    Tuesday 4/23
    Day
    84°
    60% Chance of Storms
    Forecast day icon
    Night
    73°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Variably cloudy with scattered showers in the morning then mostly cloudy with numerous showers with isolated thunderstorms in the afternoon. Highs around 89. Chance of rain 60 percent.
    Night Details
    Mostly cloudy with scattered showers. Lows around 78. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    60% Chance of Storms
    84°
    Forecast night icon
    Night
    Partly Cloudy
    74°
    Wednesday 4/24
    Day
    84°
    60% Chance of Storms
    Forecast day icon
    Night
    74°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Numerous showers in the morning then scattered showers with isolated thunderstorms in the afternoon. Highs around 88. Chance of rain 60 percent.
    Night Details
    Partly cloudy with isolated showers. Lows around 78. Chance of rain 20 percent.
  • Forecast day icon
    Thursday
    40% Chance Rain Showers
    83°
    Forecast night icon
    Night
    60% Chance of Rain
    73°
    Thursday 4/25
    Day
    83°
    40% Chance Rain Showers
    Forecast day icon
    Night
    73°
    60% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Variably cloudy with scattered showers in the morning then partly cloudy with isolated showers in the afternoon. Highs around 86. Chance of rain 40 percent.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 73F. Dew point will be around 71F with an average humidity of 87%. Winds will be 9 mph from the E.
  • Forecast day icon
    Friday
    60% Chance of Rain
    82°
    Forecast night icon
    Night
    50% Chance of Rain
    73°
    Friday 4/26
    Day
    82°
    60% Chance of Rain
    Forecast day icon
    Night
    73°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 60%. High temperature around 82F. Dew point will be around 72F with an average humidity of 79%. Winds will be 11 mph from the NE.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 73F. Dew point will be around 70F with an average humidity of 87%. Winds will be 9 mph from the NE.
  • Forecast day icon
    Saturday
    80% Chance of Rain
    82°
    Forecast night icon
    Night
    70% Chance of Rain
    74°
    Saturday 4/27
    Day
    82°
    80% Chance of Rain
    Forecast day icon
    Night
    74°
    70% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with probable rain. Chance of precipitation 80%. High temperature around 82F. Dew point will be around 72F with an average humidity of 80%. Winds will be 10 mph from the NE.
    Night Details
    Clear with probable rain. Chance of precipitation 65%. Low temperature around 74F. Dew point will be around 71F with an average humidity of 88%. Winds will be 9 mph from the NE.
  • Forecast day icon
    Sunday
    80% Chance of Rain
    82°
    Forecast night icon
    Night
    70% Chance of Rain
    74°
    Sunday 4/28
    Day
    82°
    80% Chance of Rain
    Forecast day icon
    Night
    74°
    70% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a 80% chance for rain and thunderstorms. High temperature around 82F. Dew point will be around 72F with an average humidity of 80%. Winds will be 11 mph from the NE.
    Night Details
    Clear with a 65% chance for rain and thunderstorms. Low temperature around 74F. Dew point will be around 71F with an average humidity of 88%. Winds will be 9 mph from the NE.