7-Day Forecast 18.37°N 66.11°W (Text-Only)
NWS Forecast for: Guaynabo PR
Issued by: National Weather Service San Juan, PR
Last Update: 4:21 pm AST May 31, 2024
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  • Overnight

    Overnight: Isolated showers.  Widespread haze. Partly cloudy, with a low around 79. East southeast wind around 8 mph.  Chance of precipitation is 10%.

    Low: 79 °F

    Isolated
    Showers


  • Saturday

    Saturday: Scattered showers, with thunderstorms also possible after 3pm.  Partly sunny, with a high near 91. Heat index values as high as 104. East southeast wind 9 to 13 mph.  Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Scattered
    Showers


  • Saturday
    Night

    Saturday Night: Scattered showers, mainly after midnight.  Widespread haze between 9pm and midnight. Partly cloudy, with a low around 79. East wind around 8 mph.  Chance of precipitation is 30%.

    Low: 79 °F

    Scattered
    Showers


  • Sunday

    Sunday: Scattered showers and thunderstorms after noon.  Widespread haze before noon. Mostly sunny, with a high near 87. Heat index values as high as 102. East wind 10 to 13 mph.  Chance of precipitation is 40%.

    High: 87 °F

    Haze then
    Scattered
    Showers

  • Sunday
    Night

    Sunday Night: Isolated showers.  Partly cloudy, with a low around 79. East wind 3 to 7 mph.  Chance of precipitation is 10%.

    Low: 79 °F

    Isolated
    Showers


  • Monday

    Monday: Isolated showers, then showers likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 87. East southeast wind 7 to 11 mph.  Chance of precipitation is 60%.

    High: 87 °F

    Isolated
    Showers then
    Showers
    Likely

  • Monday
    Night

    Monday Night: Scattered showers.  Partly cloudy, with a low around 79. Southeast wind around 6 mph.  Chance of precipitation is 30%.

    Low: 79 °F

    Scattered
    Showers


  • Tuesday

    Tuesday: Scattered showers.  Partly sunny, with a high near 89. South southeast wind 8 to 15 mph.  Chance of precipitation is 50%.

    High: 89 °F

    Scattered
    Showers


  • Tuesday
    Night

    Tuesday Night: Scattered showers.  Mostly cloudy, with a low around 80. Southeast wind around 10 mph.  Chance of precipitation is 40%.

    Low: 80 °F

    Scattered
    Showers




  • Overnight: Isolated showers. Widespread haze. Partly cloudy, with a low around 79. East southeast wind around 8 mph. Chance of precipitation is 10%.

    Saturday: Scattered showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 91. Heat index values as high as 104. East southeast wind 9 to 13 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    Saturday Night: Scattered showers, mainly after midnight. Widespread haze between 9pm and midnight. Partly cloudy, with a low around 79. East wind around 8 mph. Chance of precipitation is 30%.

    Sunday: Scattered showers and thunderstorms after noon. Widespread haze before noon. Mostly sunny, with a high near 87. Heat index values as high as 102. East wind 10 to 13 mph. Chance of precipitation is 40%.

    Sunday Night: Isolated showers. Partly cloudy, with a low around 79. East wind 3 to 7 mph. Chance of precipitation is 10%.

    Monday: Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 87. East southeast wind 7 to 11 mph. Chance of precipitation is 60%.

    Monday Night: Scattered showers. Partly cloudy, with a low around 79. Southeast wind around 6 mph. Chance of precipitation is 30%.

    Tuesday: Scattered showers. Partly sunny, with a high near 89. South southeast wind 8 to 15 mph. Chance of precipitation is 50%.

    Tuesday Night: Scattered showers. Mostly cloudy, with a low around 80. Southeast wind around 10 mph. Chance of precipitation is 40%.

    Wednesday: Showers, mainly after noon. High near 89. Chance of precipitation is 80%.

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 79. Chance of precipitation is 50%.

    Thursday: Showers likely. Mostly cloudy, with a high near 90. Chance of precipitation is 70%.

    Thursday Night: Partly cloudy, with a low around 80.

    Friday: Scattered showers. Mostly sunny, with a high near 91. Chance of precipitation is 50%.



    Guaynabo PR
     18.37°N 66.11°W (Elev. 115 ft)

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