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National Weather Service Today's Weather Impact Levels

National Weather Service Forecast for: San Juan, Puerto Rico  

Updated: 1:43 pm AST May 11, 2026

This
Afternoon
This Afternoon: Isolated showers. Mostly sunny, with a high near 90. East wind around 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Isolated
Showers

Hi 90 °F
Tonight

Tonight: Showers likely, mainly after midnight. Mostly cloudy, with a low around 76. East wind around 11 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Scattered
Showers then
Showers
Likely
Lo 76 °F
Tuesday

Tuesday: Showers likely, mainly before 9am. Partly sunny, with a high near 89. East wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Showers
Likely then
Scattered
Showers
Hi 89 °F
Tuesday
Night
Tuesday Night: Isolated showers. Partly cloudy, with a low around 76. East southeast wind 8 to 10 mph. Chance of precipitation is 20%.
Isolated
Showers

Lo 76 °F
Wednesday

Wednesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 91. East southeast wind 10 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Scattered
Showers

Hi 91 °F
Wednesday
Night
Wednesday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 77. East southeast wind 6 to 9 mph. Chance of precipitation is 40%.
Scattered
Showers

Lo 77 °F
Thursday

Thursday: Mostly sunny, with a high near 91. East southeast wind 8 to 18 mph, with gusts as high as 23 mph.
Mostly Sunny

Hi 91 °F
Thursday
Night
Thursday Night: Partly cloudy, with a low around 77. East southeast wind 7 to 9 mph.
Partly Cloudy

Lo 77 °F
Friday

Friday: Scattered showers, mainly after noon. Mostly sunny, with a high near 92. East southeast wind 8 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Mostly Sunny
then
Scattered
Showers
Hi 92 °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)

Weather Summary unavailable, please try later.

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