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Local Weather Conditions

Weather Graph

 

National Weather Service Today's Weather Impact Levels

National Weather Service Forecast for: San Juan, Puerto Rico  

Updated: 3:52 am AST May 21, 2026

Today

Today: Scattered showers, mainly after noon. Mostly sunny, with a high near 88. East wind 9 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Scattered
Showers
Hi 88 °F
Tonight

Tonight: Scattered showers, mainly after midnight. Mostly cloudy, with a low around 76. East wind 8 to 11 mph. Chance of precipitation is 50%.
Scattered
Showers
Lo 76 °F
Friday

Friday: Scattered showers, mainly after noon. Partly sunny, with a high near 88. East wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Scattered
Showers
Hi 88 °F
Friday
Night
Friday Night: Isolated showers. Partly cloudy, with a low around 76. East wind around 10 mph. Chance of precipitation is 20%.
Isolated
Showers
Lo 76 °F
Saturday

Saturday: Isolated showers. Mostly sunny, with a high near 88. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Isolated
Showers
Hi 88 °F
Saturday
Night
Saturday Night: Mostly clear, with a low around 76. East wind 8 to 10 mph.
Mostly Clear
Lo 76 °F
Sunday

Sunday: Scattered showers. Partly sunny, with a high near 86. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Scattered
Showers
Hi 86 °F
Sunday
Night
Sunday Night: Scattered showers. Mostly cloudy, with a low around 76. East wind around 11 mph. Chance of precipitation is 40%.
Scattered
Showers
Lo 76 °F
Memorial
Day
Memorial Day: Showers likely, mainly after noon. Mostly cloudy, with a high near 87. East wind 14 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Showers
Likely
Hi 87 °F

National Weather Service Forecast Details

 

Caribbean Sea Satellite

NWS San Juan Doppler Radar

GRLevel3 Radar

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GRLevel3 radar from NWS station TJUA

Day 1 rainfall

Day 2 rainfall

Day 3 rainfall

National Weather Service in San Juan

Area Forecast Discussion (AFD)

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NWS SJU Office Area Forecast Discussion

Tropical Atlantic Satellite

Tropical Weather Outlook

Saharan Air Layer

Wind Shear Tendency

Sea Surface Temperatures

Sea Surface Temperatures Anomalies

200hPa Velocity Potential Forecast