Excessive Heat for the Southwest; Showers and Thunderstorms for Portions of the Plains and East Coast

Showers and thunderstorms are expected across the eastern two-thirds of the country today along and ahead of a cold front. Some of these storms may result in isolated incidences of severe weather, including flash flooding. Meanwhile, more records may be tied or broken as excessive heat across the California's Central Valley and much of the Desert Southwest continues. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Mostly Cloudy

88°F

31°C

Humidity	75%
Wind Speed	E 13 mph
Barometer	29.93 in
Dewpoint	79°F (26°C)
Visibility	10.00 mi
Heat Index	103°F (39°C)
Last update	6 Jun 2:56 pm AST

More Information:

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

Extended Forecast for

San Antonio PR

Heat Advisory until June 6, 05:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until June 6, 05:00pm
NOW until 5:00pm Thu
Heat Advisory
This Afternoon
High: 90 °F
Showers
Likely
Tonight
Low: 77 °F
Scattered
Showers
Friday
High: 93 °F
Isolated
Showers
Friday Night
Low: 81 °F
Mostly Clear
Saturday
High: 92 °F
Sunny then
Isolated
Showers
Saturday Night
Low: 80 °F
Clear then
Isolated
Showers
Sunday
High: 91 °F
Sunny
Sunday Night
Low: 77 °F
Partly Cloudy

Detailed Forecast

This Afternoon

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 90. Heat index values as high as 107. East southeast wind around 14 mph. Chance of precipitation is 60%.

Tonight

Scattered showers before midnight, then isolated showers after 3am. Widespread haze before 9pm, then widespread haze after midnight. Partly cloudy, with a low around 77. East southeast wind around 8 mph. Chance of precipitation is 30%.

Friday

Isolated showers. Mostly sunny, with a high near 93. Heat index values as high as 113. Southeast wind 7 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.

Friday Night

Mostly clear, with a low around 81. Southeast wind 6 to 8 mph.

Saturday

Isolated showers after noon. Sunny, with a high near 92. East wind 9 to 14 mph. Chance of precipitation is 20%.

Saturday Night

Isolated showers after midnight. Mostly clear, with a low around 80. Southeast wind 3 to 8 mph. Chance of precipitation is 10%.

Sunday

Sunny, with a high near 91. East wind 7 to 15 mph, with gusts as high as 20 mph.

Sunday Night

Partly cloudy, with a low around 77. East southeast wind 6 to 9 mph.

Monday

Mostly sunny, with a high near 89. East wind 7 to 15 mph, with gusts as high as 20 mph.