National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

78°F

26°C

Humidity 79%
Wind Speed E 10 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 16 Jan 10:56 pm AST
Extended Forecast for

San Juan PR

  • Tonight

    Tonight: Scattered showers, mainly after 3am. Partly cloudy, with a low around 73. East wind around 10 mph. Chance of precipitation is 40%.

    Low: 73 °F

    Scattered
    Showers

  • Saturday

    Saturday: Showers likely, mainly between 9am and noon. Cloudy through mid morning, then becoming mostly sunny, with a high near 86. East wind 8 to 13 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 86 °F

    Showers
    Likely then
    Isolated
    Showers

  • Saturday Night

    Saturday Night: Scattered showers, mainly before 3am. Partly cloudy, with a low around 73. East wind 10 to 13 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers. Partly sunny, with a high near 87. East wind 10 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 87 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Scattered showers, mainly before midnight. Partly cloudy, with a low around 72. East wind 8 to 10 mph. Chance of precipitation is 40%.

    Low: 72 °F

    Scattered
    Showers then
    Isolated
    Showers

  • M.L.King Day

    M.L.King Day: Scattered showers. Mostly sunny, with a high near 87. East wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers. Mostly cloudy, with a low around 72. East wind around 10 mph. Chance of precipitation is 40%.

    Low: 72 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East wind 11 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 86 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers. Partly cloudy, with a low around 72. East wind around 10 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Scattered
    Showers

Detailed Forecast

Tonight
Scattered showers, mainly after 3am. Partly cloudy, with a low around 73. East wind around 10 mph. Chance of precipitation is 40%.
Saturday
Showers likely, mainly between 9am and noon. Cloudy through mid morning, then becoming mostly sunny, with a high near 86. East wind 8 to 13 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Scattered showers, mainly before 3am. Partly cloudy, with a low around 73. East wind 10 to 13 mph. Chance of precipitation is 30%.
Sunday
Scattered showers. Partly sunny, with a high near 87. East wind 10 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Sunday Night
Scattered showers, mainly before midnight. Partly cloudy, with a low around 72. East wind 8 to 10 mph. Chance of precipitation is 40%.
M.L.King Day
Scattered showers. Mostly sunny, with a high near 87. East wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Monday Night
Scattered showers. Mostly cloudy, with a low around 72. East wind around 10 mph. Chance of precipitation is 40%.
Tuesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 86. East wind 11 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Tuesday Night
Scattered showers. Partly cloudy, with a low around 72. East wind around 10 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 50%.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Thursday
Scattered showers. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Friday
Scattered showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Juan PR
 18.41°N 66.07°W (Elev. 56 ft)
Last Update:
9:37 pm AST Jan 16, 2026
Forecast Valid:
11pm AST Jan 16, 2026-6pm AST Jan 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation