Excessive Heat Returns to the Southwest U.S.; Heavy to Excessive Rainfall for Southern Florida

Dangerously hot temperatures will return to the southwestern U.S. and central valley of California Tuesday and Wednesday then spread across the southern & eastern U.S. the second half of this week. Heavy to excessive rainfall may bring areas of flash and urban flooding, with locally considerable urban flooding possible, at times Tuesday into this weekend over the southern Florida Peninsula. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

83°F

28°C

Humidity	82%
Wind Speed	E 5 mph
Barometer	30.03 in (1016.8 mb)
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	92°F (33°C)
Last update	11 Jun 12:56 am AST

More Information:

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

Extended Forecast for

3 Miles WSW Guaynabo PR

Excessive Heat Watch June 11, 09:00am until June 11, 06:00pm

Click here for hazard details and duration

Excessive Heat Watch

Overnight
Low: 78 °F
Isolated
Showers
Tuesday
High: 91 °F
Isolated
Showers then
Sunny
Tuesday Night
Low: 79 °F
Isolated
Showers
Wednesday
High: 91 °F
Scattered
Showers
Wednesday Night
Low: 79 °F
Isolated
Showers
Thursday
High: 88 °F
Isolated
Showers
Thursday Night
Low: 79 °F
Partly Cloudy
Friday
High: 87 °F
Mostly Sunny
then
Scattered
Showers
Friday Night
Low: 78 °F
Partly Cloudy

Detailed Forecast

Overnight

Isolated showers. Partly cloudy, with a low around 78. East southeast wind around 5 mph. Chance of precipitation is 20%.

Tuesday

Isolated showers before 9am. Sunny, with a high near 91. Heat index values as high as 102. East southeast wind 9 to 15 mph. Chance of precipitation is 10%.

Tuesday Night

Isolated showers after 9pm. Mostly clear, with a low around 79. East wind 5 to 9 mph. Chance of precipitation is 10%.

Wednesday

Scattered showers. Mostly sunny, with a high near 91. Heat index values as high as 103. East wind 8 to 14 mph. Chance of precipitation is 30%.

Wednesday Night

Isolated showers. Partly cloudy, with a low around 79. East wind around 8 mph. Chance of precipitation is 20%.

Thursday

Isolated showers. Mostly sunny, with a high near 88. East wind 7 to 14 mph. Chance of precipitation is 10%.

Thursday Night

Partly cloudy, with a low around 79. East wind 6 to 8 mph.

Friday

Scattered showers, mainly after noon. Mostly sunny, with a high near 87. East wind 7 to 14 mph. Chance of precipitation is 40%.