7-Day Forecast 18.39°N 66.11°W (Text-Only)
NWS Forecast for: Guaynabo PR
Issued by: National Weather Service San Juan, PR
Last Update: 4:11 pm AST May 4, 2024




Tonight: Showers likely and possibly a thunderstorm before 3am, then scattered showers. Mostly cloudy, with a low around 77. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

Sunday: Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then scattered showers after 3pm. Partly sunny, with a high near 87. East northeast wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night: Scattered showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 77. East northeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a half and three quarters of an inch possible.

Monday: Showers and possibly a thunderstorm. High near 85. East northeast wind 5 to 8 mph. Chance of precipitation is 80%.

Monday Night: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 76. East northeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 70%.

Tuesday: Showers likely and possibly a thunderstorm before noon, then scattered showers. Partly sunny, with a high near 85. Calm wind becoming east northeast 5 to 8 mph in the morning. Chance of precipitation is 60%.

Tuesday Night: Scattered showers. Partly cloudy, with a low around 76. East wind around 6 mph. Chance of precipitation is 40%.

Wednesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 87. East northeast wind 3 to 6 mph. Chance of precipitation is 40%.

Wednesday Night: Scattered showers. Partly cloudy, with a low around 79. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

Thursday: Scattered showers. Mostly sunny, with a high near 85. Chance of precipitation is 50%.

Thursday Night: Clear, with a low around 78.

Friday: Scattered showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.

Friday Night: Mostly clear, with a low around 77.

Saturday: Sunny, with a high near 87.



Guaynabo PR
 18.39°N 66.11°W (Elev. 151 ft)

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