Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Hazardous Weather Conditions

Rip Current Statement until January 22, 06:00 PM AST

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

76°F

24°C

Humidity	85%
Wind Speed	E 3 mph
Barometer	30.04 in (1017.2 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	21 Jan 12:56 am AST

More Information:

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

Extended Forecast for

Loiza PR

Overnight
Low: 75 °F
Scattered
Showers
Wednesday
High: 84 °F
Showers
Likely
Wednesday Night
Low: 74 °F
Showers
Likely
Thursday
High: 83 °F
Showers
Likely
Thursday Night
Low: 75 °F
Showers
Likely
Friday
High: 83 °F
Showers
Likely
Friday Night
Low: 75 °F
Partly Cloudy
Saturday
High: 83 °F
Sunny
Saturday Night
Low: 75 °F
Mostly Clear

Detailed Forecast

Overnight

Scattered showers. Mostly cloudy, with a low around 75. East wind around 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

Wednesday

Showers likely, mainly after 3pm. Mostly cloudy, with a high near 84. East wind 16 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday Night

Scattered showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 74. East northeast wind around 17 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.

Thursday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. East wind around 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

Thursday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 75. East wind 11 to 13 mph. Chance of precipitation is 70%.

Friday

Showers likely and possibly a thunderstorm before noon, then scattered showers. Partly sunny, with a high near 83. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

Friday Night

Partly cloudy, with a low around 75. East wind around 11 mph.

Saturday

Sunny, with a high near 83. East wind 9 to 13 mph.

Saturday Night

Mostly clear, with a low around 75. East wind 11 to 14 mph.

Sunday

Scattered showers after noon. Mostly sunny, with a high near 84. Chance of precipitation is 30%.

Sunday Night

Clear, with a low around 75.

Monday

Sunny, with a high near 83.