Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

75°F

24°C

Humidity 88%
Wind Speed Calm
Barometer 29.97 in (1014.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 10 Dec 3:56 am AST
Extended Forecast for

3 Miles WNW Luis Muñoz Marín International Airport PR

  • Overnight

    Overnight: Isolated showers.  Partly cloudy, with a low around 73. Light southeast wind.  Chance of precipitation is 10%.

    Low: 73 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after 3pm.  Partly sunny, with a high near 87. East wind 6 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 87 °F

    Scattered
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Scattered showers, mainly before 3am.  Partly cloudy, with a low around 75. East southeast wind 7 to 10 mph.  Chance of precipitation is 50%.

    Low: 75 °F

    Scattered
    Showers

  • Thursday

    Thursday: Isolated showers.  Sunny, with a high near 88. East southeast wind 9 to 14 mph.  Chance of precipitation is 20%.

    High: 88 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Scattered showers, mainly before midnight.  Partly cloudy, with a low around 75. East wind 7 to 9 mph.  Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    Showers

  • Friday

    Friday: Isolated showers after noon.  Sunny, with a high near 87. East wind 8 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 10%.

    High: 87 °F

    Sunny then
    Isolated
    Showers

  • Friday Night

    Friday Night: Scattered showers.  Partly cloudy, with a low around 74. East wind 8 to 10 mph.  Chance of precipitation is 30%.

    Low: 74 °F

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers, mainly after noon.  Mostly sunny, with a high near 87. East wind 11 to 17 mph, with gusts as high as 23 mph.  Chance of precipitation is 30%.

    High: 87 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers.  Mostly cloudy, with a low around 75. East wind 8 to 11 mph.  Chance of precipitation is 40%.

    Low: 75 °F

    Scattered
    Showers

Detailed Forecast

Overnight
Isolated showers. Partly cloudy, with a low around 73. Light southeast wind. Chance of precipitation is 10%.
Wednesday
Showers likely, mainly after 3pm. Partly sunny, with a high near 87. East wind 6 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Scattered showers, mainly before 3am. Partly cloudy, with a low around 75. East southeast wind 7 to 10 mph. Chance of precipitation is 50%.
Thursday
Isolated showers. Sunny, with a high near 88. East southeast wind 9 to 14 mph. Chance of precipitation is 20%.
Thursday Night
Scattered showers, mainly before midnight. Partly cloudy, with a low around 75. East wind 7 to 9 mph. Chance of precipitation is 30%.
Friday
Isolated showers after noon. Sunny, with a high near 87. East wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.
Friday Night
Scattered showers. Partly cloudy, with a low around 74. East wind 8 to 10 mph. Chance of precipitation is 30%.
Saturday
Scattered showers, mainly after noon. Mostly sunny, with a high near 87. East wind 11 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 75. East wind 8 to 11 mph. Chance of precipitation is 40%.
Sunday
Scattered showers. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 74.
Monday
Scattered showers. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
Scattered showers. Partly sunny, with a high near 87. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Luis Muñoz Marín International Airport PR
 18.45°N 66.04°W (Elev. 7 ft)
3:34 am AST Dec 10, 2025
4am AST Dec 10, 2025-6pm AST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database