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National Weather Service Forecast for: San Juan, Puerto Rico  

Updated: 9:11 am AST Sep 7, 2025 

Hazardous Weather Outlook
 

This
Afternoon
This Afternoon: Showers likely and possibly a thunderstorm. Cloudy, with a high near 91. Heat index values as high as 104. East wind around 14 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
High: 91 °F		Tonight

Tonight: Isolated showers before 9pm, then showers likely after midnight. Increasing clouds, with a low around 78. Southeast wind 6 to 8 mph. Chance of precipitation is 60%.
Low: 78 °F		Monday

Monday: Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 91. Heat index values as high as 105. East wind 8 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
High: 91 °F		Monday
Night
Monday Night: Isolated showers before midnight. Mostly clear, with a low around 78. East southeast wind 5 to 9 mph. Chance of precipitation is 20%.
Low: 78 °F		Tuesday

Tuesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 92. East wind 5 to 14 mph. Chance of precipitation is 30%.
High: 92 °F		Tuesday
Night
Tuesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. East southeast wind 5 to 8 mph. Chance of precipitation is 40%.
Low: 78 °F		Wednesday

Wednesday: Showers likely, mainly after noon. Partly sunny, with a high near 91. East wind 5 to 14 mph. Chance of precipitation is 60%.
High: 91 °F		Wednesday
Night
Wednesday Night: Scattered showers. Mostly cloudy, with a low around 79. East southeast wind around 7 mph. Chance of precipitation is 40%.
Low: 79 °F
Showers
Likely

Isolated
Showers then
Showers
Likely
Showers
Likely

Isolated
Showers then
Mostly Clear
Scattered
Showers

Scattered
Showers

Showers
Likely

Scattered
Showers

National Weather Service Forecast Details

 

 

 

MARIA

 

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