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

84°F

29°C

Humidity 62%
Wind Speed E 16 mph
Barometer 30.06 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 19 Jan 11:56 am AST
Extended Forecast for

4 Miles SSW Palmer PR

  • M.L.King Day

    M.L.King Day: Scattered showers.  Partly sunny, with a temperature falling to around 70 by 5pm. East wind around 14 mph.  Chance of precipitation is 40%.

    High: 75 °F

    Scattered
    Showers

  • Tonight

    Tonight: Showers likely, mainly after 3am.  Mostly cloudy, with a low around 64. East wind around 10 mph.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Scattered showers.  Partly sunny, with a high near 75. East wind 11 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    High: 75 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers.  Mostly cloudy, with a low around 64. East wind around 11 mph.  Chance of precipitation is 50%.

    Low: 64 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Showers likely.  Mostly cloudy, with a high near 75. East northeast wind 11 to 17 mph, with gusts as high as 22 mph.  Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely.  Mostly cloudy, with a low around 64. East northeast wind around 10 mph.  Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely.  Mostly cloudy, with a high near 74. East wind 14 to 16 mph.  Chance of precipitation is 70%.

    High: 74 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Scattered showers.  Partly cloudy, with a low around 63. East wind 9 to 11 mph.  Chance of precipitation is 50%.

    Low: 63 °F

    Scattered
    Showers

  • Friday

    Friday: Showers likely.  Mostly cloudy, with a high near 76. East wind 10 to 14 mph.  Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

M.L.King Day
Scattered showers. Partly sunny, with a temperature falling to around 70 by 5pm. East wind around 14 mph. Chance of precipitation is 40%.
Tonight
Showers likely, mainly after 3am. Mostly cloudy, with a low around 64. East wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Scattered showers. Partly sunny, with a high near 75. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 64. East wind around 11 mph. Chance of precipitation is 50%.
Wednesday
Showers likely. Mostly cloudy, with a high near 75. East northeast wind 11 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 64. East northeast wind around 10 mph. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 74. East wind 14 to 16 mph. Chance of precipitation is 70%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 63. East wind 9 to 11 mph. Chance of precipitation is 50%.
Friday
Showers likely. Mostly cloudy, with a high near 76. East wind 10 to 14 mph. Chance of precipitation is 60%.
Friday Night
Scattered showers. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 75.
Saturday Night
Clear, with a low around 63.
Sunday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Palmer PR
 18.31°N 65.79°W (Elev. 2100 ft)
5:18 am AST Jan 19, 2026
12pm AST Jan 19, 2026-6pm AST Jan 25, 2026
 
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Additional Resources

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