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

Well below normal temperatures will continue for the eastern half of the Lower 48 this week. Another blast of arctic air will spread from the Plains through the East/Southeast Friday into Saturday with more record lows expected even into Florida. Forecasts are being monitored for increasing potential of another significant winter storm to impact the eastern United States this coming weekend. Read More >

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

74°F

23°C

Humidity 82%
Wind Speed Calm
Barometer 30.08 in (1018.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 27 Jan 1:56 am AST
Extended Forecast for

3 Miles NE Comerio PR

  • Overnight

    Overnight: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Showers likely, mainly between 9am and noon. Partly sunny, with a high near 78. Calm wind becoming east 5 to 9 mph in the morning. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Isolated showers before 9pm. Mostly clear, with a low around 66. Calm wind. Chance of precipitation is 10%.

    Low: 66 °F

    Isolated
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: Isolated showers before noon. Sunny, with a high near 78. Calm wind becoming east 5 to 9 mph in the morning. Chance of precipitation is 20%.

    High: 78 °F

    Isolated
    Showers then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. Light east wind.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. Calm wind becoming east 5 to 7 mph in the morning.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Light east southeast wind.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 78. Calm wind becoming east southeast 5 to 8 mph in the morning.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 66. Light southeast wind.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 66. Calm wind.
Tuesday
Showers likely, mainly between 9am and noon. Partly sunny, with a high near 78. Calm wind becoming east 5 to 9 mph in the morning. Chance of precipitation is 60%.
Tuesday Night
Isolated showers before 9pm. Mostly clear, with a low around 66. Calm wind. Chance of precipitation is 10%.
Wednesday
Isolated showers before noon. Sunny, with a high near 78. Calm wind becoming east 5 to 9 mph in the morning. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 65. Light east wind.
Thursday
Sunny, with a high near 79. Calm wind becoming east 5 to 7 mph in the morning.
Thursday Night
Mostly clear, with a low around 65. Light east southeast wind.
Friday
Mostly sunny, with a high near 78. Calm wind becoming east southeast 5 to 8 mph in the morning.
Friday Night
Partly cloudy, with a low around 66. Light southeast wind.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Showers likely. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Scattered showers. Mostly sunny, with a high near 76. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Comerio PR
 18.24°N 66.2°W (Elev. 1650 ft)
Last Update:
3:45 pm AST Jan 26, 2026
Forecast Valid:
2am AST Jan 27, 2026-6pm AST Feb 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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