Excessive Rainfall and Severe Thunderstorms Threaten the Southern U.S. Again Friday

Heavy to excessive rainfall is forecast for eastern Louisiana into central Alabama which could bring flash, urban, and riverine flooding Friday. Scattered severe thunderstorms with a few tornadoes, very large hail, and damaging winds are possible across parts of the Gulf Coast States Friday and Friday night. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

85°F

29°C

Humidity	75%
Wind Speed	E 5 mph
Barometer	29.98 in (1015.1 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	95°F (35°C)
Last update	17 May 6:56 pm AST

More Information:

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

Extended Forecast for

2 Miles WNW Guaynabo PR

Tonight
Low: 77 °F
Isolated
Showers then
Clear
Saturday
High: 92 °F
Scattered
Showers
Saturday Night
Low: 77 °F
Mostly Clear
then Isolated
Showers
Sunday
High: 91 °F
Scattered
Showers then
Showers
Likely
Sunday Night
Low: 77 °F
Isolated
Showers
Monday
High: 91 °F
Scattered
Showers
Monday Night
Low: 77 °F
Mostly Clear
Tuesday
High: 90 °F
Sunny
Tuesday Night
Low: 77 °F
Mostly Clear

Detailed Forecast

Tonight

Isolated showers before 9pm. Mostly clear, with a low around 77. Southeast wind 3 to 7 mph. Chance of precipitation is 20%.

Saturday

Scattered showers, mainly after noon. Mostly sunny, with a high near 92. Heat index values as high as 108. East wind 5 to 14 mph. Chance of precipitation is 30%.

Saturday Night

Isolated showers after midnight. Mostly clear, with a low around 77. East southeast wind 5 to 7 mph. Chance of precipitation is 10%.

Sunday

Scattered showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 91. Heat index values as high as 105. East wind 6 to 14 mph. Chance of precipitation is 60%.

Sunday Night

Isolated showers. Mostly clear, with a low around 77. East southeast wind 5 to 7 mph. Chance of precipitation is 10%.

Monday

Scattered showers, mainly before noon. Mostly sunny, with a high near 91. East wind 6 to 15 mph. Chance of precipitation is 30%.

Monday Night

Mostly clear, with a low around 77. East southeast wind 6 to 8 mph.

Tuesday

Sunny, with a high near 90. East wind 8 to 14 mph.

Tuesday Night

Mostly clear, with a low around 77. East southeast wind 6 to 8 mph.

Wednesday

Scattered showers, mainly after noon. Mostly sunny, with a high near 90. Chance of precipitation is 40%.