Severe Weather Threats Across the Plains; Dangerous Heat and Wildfire Concerns for the West; Watching the Tropics

Severe thunderstorms are expected across the Central Plains accompanied by damaging wind gusts and large hail. In addition, heavy rainfall may lead to instances of flash flooding from the Plains and mid-Atlantic regions. The heavy rainfall threat continues across Florida and across the northern Gulf as we monitor a tropical disturbance tracking westward. Critical fire weather for the Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

88°F

31°C

Humidity	66%
Wind Speed	E 18 mph
Barometer	30.08 in
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	98°F (37°C)
Last update	15 Jul 11:56 am AST

More Information:

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

Extended Forecast for

San Juan PR

Heat Advisory July 15, 12:19pm until July 15, 04:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 15, 12:19pm until July 15, 04:00pm
NOW until 4:00pm Tue
Heat Advisory
This Afternoon
High: 89 °F
Showers
Likely
Tonight
Low: 78 °F
Showers
Likely
Wednesday
High: 90 °F
Showers
Likely
Wednesday Night
Low: 78 °F
Scattered
Showers then
Clear
Thursday
High: 91 °F
Isolated
Showers
Thursday Night
Low: 78 °F
Haze
Friday
High: 90 °F
Haze
Friday Night
Low: 76 °F
Partly Cloudy

Detailed Forecast

This Afternoon

Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 89. Heat index values as high as 102. East wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Tonight

Showers likely and possibly a thunderstorm before 3am, then scattered showers. Mostly cloudy, with a low around 78. East wind 9 to 11 mph. Chance of precipitation is 60%.

Wednesday

Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 90. Heat index values as high as 103. East wind 11 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.

Wednesday Night

Scattered showers before midnight. Partly cloudy, with a low around 78. East southeast wind around 9 mph. Chance of precipitation is 30%.

Thursday

Isolated showers. Widespread haze. Mostly sunny, with a high near 91. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Thursday Night

Widespread haze. Clear, with a low around 78. East wind around 9 mph.

Friday

Widespread haze. Mostly sunny, with a high near 90. East northeast wind 8 to 15 mph.

Friday Night

Partly cloudy, with a low around 76. East wind 7 to 9 mph.

Saturday

Mostly sunny, with a high near 90. East wind 7 to 15 mph.

Saturday Night

Mostly clear, with a low around 77.

Sunday

Mostly sunny, with a high near 91.