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.

Fair

79°F

26°C

Humidity 74%
Wind Speed E 7 mph
Barometer 30.03 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 18 Jan 9:56 pm AST
Extended Forecast for

Caguas PR

  • Tonight

    Tonight: Isolated showers after midnight.  Mostly clear, with a low around 71. East southeast wind around 6 mph.  Chance of precipitation is 20%.

    Low: 71 °F

    Clear then
    Isolated
    Showers

  • M.L.King Day

    M.L.King Day: Scattered showers, mainly after noon.  Mostly sunny, with a high near 87. Light east southeast wind becoming east 8 to 13 mph in the morning.  Chance of precipitation is 40%.

    High: 87 °F

    Isolated
    Showers then
    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers, mainly after midnight.  Partly cloudy, with a low around 71. Light east wind.  Chance of precipitation is 40%.

    Low: 71 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers, mainly after 9am.  Mostly sunny, with a high near 87. Light east wind increasing to 6 to 11 mph in the morning.  Chance of precipitation is 40%.

    High: 87 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers.  Partly cloudy, with a low around 71. Light east northeast wind.  Chance of precipitation is 40%.

    Low: 71 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers.  Partly sunny, with a high near 86. Light east northeast wind increasing to 9 to 14 mph in the morning.  Chance of precipitation is 50%.

    High: 86 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers.  Mostly cloudy, with a low around 71. Light east wind.  Chance of precipitation is 50%.

    Low: 71 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers.  Partly sunny, with a high near 86. East wind 5 to 13 mph.  Chance of precipitation is 50%.

    High: 86 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Scattered showers.  Mostly cloudy, with a low around 71. East wind 3 to 5 mph.  Chance of precipitation is 40%.

    Low: 71 °F

    Scattered
    Showers

Detailed Forecast

Tonight
Isolated showers after midnight. Mostly clear, with a low around 71. East southeast wind around 6 mph. Chance of precipitation is 20%.
M.L.King Day
Scattered showers, mainly after noon. Mostly sunny, with a high near 87. Light east southeast wind becoming east 8 to 13 mph in the morning. Chance of precipitation is 40%.
Monday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 71. Light east wind. Chance of precipitation is 40%.
Tuesday
Scattered showers, mainly after 9am. Mostly sunny, with a high near 87. Light east wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 40%.
Tuesday Night
Scattered showers. Partly cloudy, with a low around 71. Light east northeast wind. Chance of precipitation is 40%.
Wednesday
Scattered showers. Partly sunny, with a high near 86. Light east northeast wind increasing to 9 to 14 mph in the morning. Chance of precipitation is 50%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 71. Light east wind. Chance of precipitation is 50%.
Thursday
Scattered showers. Partly sunny, with a high near 86. East wind 5 to 13 mph. Chance of precipitation is 50%.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 71. East wind 3 to 5 mph. Chance of precipitation is 40%.
Friday
Showers likely, mainly before noon. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 71.
Saturday
Scattered showers. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Scattered showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Caguas PR
 18.23°N 66.04°W (Elev. 230 ft)
6:49 pm AST Jan 18, 2026
10pm AST Jan 18, 2026-6pm AST Jan 25, 2026
 
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Additional Resources

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