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

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

70°F

21°C

Humidity 88%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 28 Jan 5:56 am AST
Extended Forecast for

Loiza PR

  • Today

    Today: Scattered showers, mainly after noon. Mostly sunny, with a high near 83. East wind 7 to 13 mph. Chance of precipitation is 40%.

    High: 83 °F

    Scattered
    Showers

  • Tonight

    Tonight: Isolated showers after midnight. Mostly clear, with a low around 71. East southeast wind around 7 mph. Chance of precipitation is 10%.

    Low: 71 °F

    Clear then
    Isolated
    Showers

  • Thursday

    Thursday: Isolated showers before 9am, then isolated showers after 3pm. Sunny, with a high near 84. East wind 8 to 13 mph. Chance of precipitation is 10%.

    High: 84 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Isolated showers. Partly cloudy, with a low around 72. East wind 6 to 8 mph. Chance of precipitation is 10%.

    Low: 72 °F

    Isolated
    Showers

  • Friday

    Friday: Scattered showers. Partly sunny, with a high near 83. East wind 9 to 13 mph. Chance of precipitation is 40%.

    High: 83 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers. Mostly cloudy, with a low around 73. Southeast wind 9 to 11 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Scattered
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 85. Southeast wind 9 to 15 mph, with gusts as high as 20 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Scattered showers. Mostly cloudy, with a low around 74. South southeast wind 7 to 9 mph. Chance of precipitation is 40%.

    Low: 74 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers, mainly after noon. Mostly sunny, with a high near 85. South southeast wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 85 °F

    Mostly Sunny
    then
    Scattered
    Showers

Detailed Forecast

Today
Scattered showers, mainly after noon. Mostly sunny, with a high near 83. East wind 7 to 13 mph. Chance of precipitation is 40%.
Tonight
Isolated showers after midnight. Mostly clear, with a low around 71. East southeast wind around 7 mph. Chance of precipitation is 10%.
Thursday
Isolated showers before 9am, then isolated showers after 3pm. Sunny, with a high near 84. East wind 8 to 13 mph. Chance of precipitation is 10%.
Thursday Night
Isolated showers. Partly cloudy, with a low around 72. East wind 6 to 8 mph. Chance of precipitation is 10%.
Friday
Scattered showers. Partly sunny, with a high near 83. East wind 9 to 13 mph. Chance of precipitation is 40%.
Friday Night
Scattered showers. Mostly cloudy, with a low around 73. Southeast wind 9 to 11 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 85. Southeast wind 9 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 74. South southeast wind 7 to 9 mph. Chance of precipitation is 40%.
Sunday
Scattered showers, mainly after noon. Mostly sunny, with a high near 85. South southeast wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 73.
Monday
Scattered showers. Mostly sunny, with a high near 83. Chance of precipitation is 40%.
Monday Night
Showers likely. Cloudy, with a low around 72. Chance of precipitation is 70%.
Tuesday
Showers likely. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Loiza PR
 18.44°N 65.89°W (Elev. 3 ft)
Last Update:
3:59 am AST Jan 28, 2026
Forecast Valid:
6am AST Jan 28, 2026-6pm AST Feb 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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