Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Overcast

79°F

26°C

Humidity	88%
Wind Speed	S 8 mph
Barometer	29.77 in (1007.7 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	17 Aug 9:56 am AST

More Information:

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

Extended Forecast for

Vega Baja PR

Flood Watch August 17, 10:25am until August 18, 08:00pm

High Surf Advisory August 17, 10:25am until August 18, 06:00am

Click here for hazard details and duration

Flood Watch

High Surf Advisory

Flood Watch August 17, 10:25am until August 18, 08:00pm
High Surf Advisory August 17, 10:25am until August 18, 06:00am
NOW: Multiple hazards in effect
Click HERE for Details
Today
High: 86 °F
Showers
Likely
Tonight
Low: 77 °F
Showers
Likely
Monday
High: 90 °F
Showers
Likely
Monday Night
Low: 75 °F
Scattered
Showers then
Clear
Tuesday
High: 91 °F
Isolated
Showers then
Showers
Likely
Tuesday Night
Low: 75 °F
Isolated
Showers
Wednesday
High: 93 °F
Sunny then
Scattered
Showers
Wednesday Night
Low: 76 °F
Mostly Clear

Detailed Forecast

Today

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 86. South southwest wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers likely and possibly a thunderstorm before 9pm, then scattered showers between 9pm and 3am, then scattered showers and thunderstorms after 3am. Mostly cloudy, with a low around 77. South southeast wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Monday

Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 90. South wind 7 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Scattered showers before midnight. Partly cloudy, with a low around 75. South southeast wind 5 to 7 mph. Chance of precipitation is 30%.

Tuesday

Isolated showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 91. Southeast wind around 7 mph. Chance of precipitation is 60%.

Tuesday Night

Isolated showers. Partly cloudy, with a low around 75. Southeast wind around 6 mph. Chance of precipitation is 10%.

Wednesday

Scattered showers after noon. Mostly sunny, with a high near 93. East wind 6 to 14 mph. Chance of precipitation is 40%.

Wednesday Night

Mostly clear, with a low around 76. East wind 6 to 8 mph.

Thursday

Scattered showers after noon. Mostly sunny, with a high near 91. East northeast wind 7 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

Thursday Night

Partly cloudy, with a low around 75.

Friday

Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%.

Friday Night

Scattered showers. Partly cloudy, with a low around 75. Chance of precipitation is 30%.

Saturday

Scattered showers. Partly sunny, with a high near 89. Chance of precipitation is 50%.