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National Weather Service Today's Weather Impact Levels

National Weather Service Forecast for: San Juan, Puerto Rico  

Updated: 7:46 am AST May 5, 2026

Today

Today: Scattered showers. Partly sunny, with a high near 90. Southeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Scattered
Showers
Hi 90 °F
Tonight

Tonight: Scattered showers, mainly between midnight and 3am. Partly cloudy, with a low around 77. Southeast wind around 7 mph. Chance of precipitation is 40%.
Scattered
Showers
Lo 77 °F
Wednesday

Wednesday: Isolated showers before noon, then isolated showers after 3pm. Mostly sunny, with a high near 90. East wind 8 to 15 mph. Chance of precipitation is 20%.
Isolated
Showers
Hi 90 °F
Wednesday
Night
Wednesday Night: Isolated showers. Partly cloudy, with a low around 77. East wind 6 to 8 mph. Chance of precipitation is 10%.
Isolated
Showers
Lo 77 °F
Thursday

Thursday: Isolated showers. Mostly sunny, with a high near 90. East wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Isolated
Showers
Hi 90 °F
Thursday
Night
Thursday Night: Isolated showers. Partly cloudy, with a low around 76. East wind 6 to 9 mph. Chance of precipitation is 10%.
Isolated
Showers
Lo 76 °F
Friday

Friday: Mostly sunny, with a high near 89. East northeast wind 8 to 15 mph.
Mostly Sunny
Hi 89 °F
Friday
Night
Friday Night: Partly cloudy, with a low around 76. East wind 7 to 9 mph.
Partly Cloudy
Lo 76 °F
Saturday

Saturday: Scattered showers. Mostly sunny, with a high near 89. East wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Scattered
Showers
Hi 89 °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