National Weather Service

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

91°F

33°C

Humidity	63%
Wind Speed	E 15 mph
Barometer	29.95 in
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	104°F (40°C)
Last update	25 Sep 10:56 am AST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

San Lorenzo PR

Heat Advisory until September 25, 05:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until September 25, 05:00pm
NOW until 5:00pm Wed
Heat Advisory
Today
High: 92 °F⇓
Scattered
Showers
Tonight
Low: 75 °F
Showers
Likely
Thursday
High: 90 °F
Scattered
Showers
Thursday Night
Low: 75 °F
Scattered
Showers
Friday
High: 91 °F
Scattered
Showers
Friday Night
Low: 79 °F
Showers
Likely
Saturday
High: 92 °F
Showers
Likely then
Mostly Sunny
Saturday Night
Low: 79 °F
Showers
Likely

Detailed Forecast

Today

Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a temperature falling to around 84 by 5pm. Heat index values as high as 103. East wind around 10 mph. Chance of precipitation is 50%.

Tonight

Showers likely, mainly between midnight and 3am. Mostly cloudy, with a low around 75. Light and variable wind. Chance of precipitation is 60%.

Thursday

Scattered showers. Partly sunny, with a high near 90. Heat index values as high as 103. East wind 5 to 13 mph. Chance of precipitation is 40%.

Thursday Night

Scattered showers. Mostly cloudy, with a low around 75. Light northeast wind. Chance of precipitation is 50%.

Friday

Scattered showers. Partly sunny, with a high near 91. East wind 3 to 6 mph. Chance of precipitation is 50%.

Friday Night

Showers likely, mainly after 9pm. Mostly cloudy, with a low around 79. Light east wind. Chance of precipitation is 60%.

Saturday

Showers likely, mainly before noon. Mostly sunny, with a high near 92. East wind 5 to 10 mph. Chance of precipitation is 60%.

Saturday Night

Showers likely, mainly after 9pm. Mostly cloudy, with a low around 79. Light east northeast wind. Chance of precipitation is 60%.

Sunday

Scattered showers, mainly before noon. Partly sunny, with a high near 91. Light east wind becoming east southeast 5 to 9 mph in the morning. Chance of precipitation is 50%.

Sunday Night

Scattered showers. Partly cloudy, with a low around 78. Chance of precipitation is 30%.

Monday

Scattered showers. Mostly sunny, with a high near 91. Chance of precipitation is 40%.

Monday Night

Partly cloudy, with a low around 77.

Tuesday

Scattered showers. Mostly sunny, with a high near 92. Chance of precipitation is 30%.