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

Dangerously hot conditions will continue across portions of the interior California, the Great Basin, the Southwest, and South Texas. Excessive Heat Warnings and Heat Advisories are in effect. Severe thunderstorms and excessive rainfall are possible from the central and southern High Plains into the central Plains. 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

82°F

28°C

Humidity	79%
Wind Speed	E 5 mph
Barometer	29.97 in
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	7 Jun 1:56 am AST

More Information:

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

Extended Forecast for

Guaynabo PR

Overnight
Low: 79 °F
Isolated
Showers
Friday
High: 92 °F
Isolated
Showers
Friday Night
Low: 81 °F
Clear then
Isolated
Showers
Saturday
High: 91 °F
Sunny then
Isolated
Showers
Saturday Night
Low: 80 °F
Clear then
Isolated
Showers
Sunday
High: 89 °F
Sunny then
Isolated
Showers
Sunday Night
Low: 79 °F
Partly Cloudy
Monday
High: 88 °F
Mostly Sunny
Monday Night
Low: 79 °F
Partly Cloudy

Detailed Forecast

Overnight

Isolated showers. Widespread haze. Partly cloudy, with a low around 79. Southeast wind around 6 mph. Chance of precipitation is 10%.

Friday

Isolated showers before 9am, then isolated showers after noon. Sunny, with a high near 92. Heat index values as high as 107. Southeast wind 7 to 13 mph. Chance of precipitation is 20%.

Friday Night

Isolated showers between midnight and 3am. Mostly clear, with a low around 81. Southeast wind around 6 mph. Chance of precipitation is 10%.

Saturday

Isolated showers after noon. Sunny, with a high near 91. Heat index values as high as 107. East southeast wind 6 to 13 mph. Chance of precipitation is 20%.

Saturday Night

Isolated showers after midnight. Mostly clear, with a low around 80. Southeast wind 5 to 7 mph. Chance of precipitation is 20%.

Sunday

Isolated showers after noon. Sunny, with a high near 89. East southeast wind 8 to 13 mph. Chance of precipitation is 10%.

Sunday Night

Partly cloudy, with a low around 79. East southeast wind 5 to 7 mph.

Monday

Mostly sunny, with a high near 88. East wind 8 to 14 mph.

Monday Night

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

Tuesday

Scattered showers, mainly after noon. Mostly sunny, with a high near 88. Chance of precipitation is 30%.