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.

Fair

71°F

22°C

Humidity 84%
Wind Speed Calm
Barometer 30.00 in (1015.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 28 Jan 3:56 am AST
Extended Forecast for

3 Miles NE Comerio PR

  • Today

    Today: Scattered showers, mainly after 9am. Mostly sunny, with a high near 78. Calm wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 30%.

    High: 78 °F

    Scattered
    Showers

  • Tonight

    Tonight: Clear, with a low around 65. Calm wind.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Isolated showers before 9am, then scattered showers after noon. Mostly sunny, with a high near 79. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.

    High: 79 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Isolated showers after midnight. Mostly clear, with a low around 65. Calm wind. Chance of precipitation is 10%.

    Low: 65 °F

    Mostly Clear
    then Isolated
    Showers

  • Friday

    Friday: Scattered showers, mainly after noon. Mostly sunny, with a high near 78. Calm wind becoming east southeast 5 to 9 mph in the morning. Chance of precipitation is 40%.

    High: 78 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers. Mostly cloudy, with a low around 66. East southeast wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 66 °F

    Scattered
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 79. Light southeast wind increasing to 5 to 10 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Scattered showers. Partly cloudy, with a low around 68. South wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 68 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers, mainly after noon. Mostly sunny, with a high near 78. South wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 78 °F

    Mostly Sunny
    then
    Scattered
    Showers

Detailed Forecast

Today
Scattered showers, mainly after 9am. Mostly sunny, with a high near 78. Calm wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 30%.
Tonight
Clear, with a low around 65. Calm wind.
Thursday
Isolated showers before 9am, then scattered showers after noon. Mostly sunny, with a high near 79. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.
Thursday Night
Isolated showers after midnight. Mostly clear, with a low around 65. Calm wind. Chance of precipitation is 10%.
Friday
Scattered showers, mainly after noon. Mostly sunny, with a high near 78. Calm wind becoming east southeast 5 to 9 mph in the morning. Chance of precipitation is 40%.
Friday Night
Scattered showers. Mostly cloudy, with a low around 66. East southeast wind around 5 mph becoming calm. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 79. Light southeast wind increasing to 5 to 10 mph in the morning.
Saturday Night
Scattered showers. Partly cloudy, with a low around 68. South wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday
Scattered showers, mainly after noon. Mostly sunny, with a high near 78. South wind 5 to 10 mph. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Showers likely. Partly sunny, with a high near 76. Chance of precipitation is 60%.
Monday Night
Scattered showers. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Tuesday
Showers likely. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Comerio PR
 18.24°N 66.2°W (Elev. 1650 ft)
Last Update:
3:59 am AST Jan 28, 2026
Forecast Valid:
4am AST Jan 28, 2026-6pm AST Feb 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation