Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45° N Lon: 66° W Elev: 10 ft.

Mostly Cloudy

77°F

25°C

Humidity	88%
Wind Speed	E 6 mph
Barometer	30.01 in (1016.1 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	10 Dec 10:56 pm AST

More Information:

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

Detailed forecast for

San Juan and Vicinity

Rest Of Tonight

Variably cloudy late this evening, then clearing. Scattered showers late this evening, then isolated showers. Lows around 82. Southeast winds 5 to 10 mph. Chance of rain 50 percent.

Thursday

Partly cloudy with isolated showers. Highs around 89. Temperature falling in the afternoon. Southeast winds 10 to 15 mph. Chance of rain 20 percent.

Thursday Night

Partly cloudy with isolated showers in the evening, then mostly cloudy with numerous showers after midnight. Lows around 82. East winds 5 to 10 mph. Chance of rain 60 percent.

Friday

Sunny in the morning, then becoming partly cloudy. Isolated showers. Highs around 89. Temperature falling in the afternoon. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain less than 20 percent.

Friday Night

Variably cloudy with scattered showers. Lows around 82. East winds 5 to 10 mph. Chance of rain 40 percent.

Saturday

Partly cloudy with isolated showers. Highs around 89. Temperature falling in the afternoon. Chance of rain 20 percent.

Saturday Night

Variably cloudy with scattered showers. Lows around 82. Chance of rain 50 percent.

Sunday

Variably cloudy with scattered showers. Highs around 89. Temperature falling in the afternoon. Chance of rain 50 percent.

Sunday Night

Partly cloudy with isolated showers. Lows around 82. Chance of rain 20 percent.

Monday

Variably cloudy in the morning, then becoming mostly cloudy. Scattered showers. Highs around 89. Temperature falling in the afternoon. Chance of rain 50 percent.

Monday Night

Partly cloudy with isolated showers. Lows around 82. Chance of rain 20 percent.

Tuesday

Variably cloudy in the morning, then becoming mostly cloudy. Scattered showers. Highs around 88. Temperature falling in the afternoon. Chance of rain 50 percent.

Tuesday Night

Variably cloudy with scattered showers. Lows around 82. Chance of rain 40 percent.

Wednesday

Variably cloudy with scattered showers in the morning, then mostly cloudy with numerous showers in the afternoon. Highs around 88. Temperature falling in the afternoon. Chance of rain 60 percent.