Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

77°F

25°C

Humidity 85%
Wind Speed E 7 mph
Barometer 30.05 in (1017.4 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 19 Jan 10:56 pm AST
Extended Forecast for

2 Miles NNE Catano PR

  • Tonight

    Tonight: Showers likely, mainly after 3am.  Mostly cloudy, with a low around 75. East wind around 14 mph.  Chance of precipitation is 60%.

    Low: 75 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Scattered showers.  Partly sunny, with a high near 83. East wind 14 to 18 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%.

    High: 83 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers.  Partly cloudy, with a low around 75. East wind around 15 mph, with gusts as high as 21 mph.  Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly before noon.  Partly sunny, with a high near 83. East wind 16 to 21 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely then
    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers.  Mostly cloudy, with a low around 75. East wind around 16 mph, with gusts as high as 22 mph.  Chance of precipitation is 50%.

    Low: 75 °F

    Scattered
    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 83. East wind 16 to 18 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Scattered showers.  Partly cloudy, with a low around 75. East southeast wind 9 to 11 mph.  Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers, mainly before noon.  Mostly sunny, with a high near 84. East wind 10 to 16 mph, with gusts as high as 22 mph.  Chance of precipitation is 40%.

    High: 84 °F

    Scattered
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 75. East wind around 10 mph.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly after 3am. Mostly cloudy, with a low around 75. East wind around 14 mph. Chance of precipitation is 60%.
Tuesday
Scattered showers. Partly sunny, with a high near 83. East wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday Night
Scattered showers. Partly cloudy, with a low around 75. East wind around 15 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Wednesday
Showers likely, mainly before noon. Partly sunny, with a high near 83. East wind 16 to 21 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 75. East wind around 16 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Thursday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 83. East wind 16 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 75. East southeast wind 9 to 11 mph. Chance of precipitation is 30%.
Friday
Scattered showers, mainly before noon. Mostly sunny, with a high near 84. East wind 10 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 75. East wind around 10 mph.
Saturday
Sunny, with a high near 83.
Saturday Night
Clear, with a low around 75.
Sunday
Sunny, with a high near 84.
Sunday Night
Clear, with a low around 75.
Monday
Scattered showers. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Catano PR
 18.47°N 66.1°W (Elev. 0 ft)
4:07 pm AST Jan 19, 2026
11pm AST Jan 19, 2026-6pm AST Jan 26, 2026
 
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Additional Resources

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