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Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring critical fire weather to the southern High Plains Friday. A winter storm will track across the Great Lakes and Northeast U.S. Friday into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. 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 83%
Wind Speed SE 3 mph
Barometer 30.04 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 20 Feb 12:56 am AST
Extended Forecast for

Guaynabo PR

High Surf Advisory February 20, 01:14am until February 20, 06:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory February 20, 01:14am until February 20, 06:00pm

    NOW until 6:00pm Fri

    High Surf Advisory

  • Overnight

    Low: 71 °F

    Isolated
    Showers

  • Friday

    Friday: Isolated showers before 3pm. Sunny, with a high near 87. East southeast wind 8 to 14 mph. Chance of precipitation is 20%.

    High: 87 °F

    Isolated
    Showers

  • Friday Night

    Friday Night: Scattered showers, mainly between 9pm and 3am. Mostly clear, with a low around 72. East southeast wind 5 to 8 mph. Chance of precipitation is 50%.

    Low: 72 °F

    Isolated
    Showers then
    Scattered
    Showers

  • Saturday

    Saturday: Isolated showers after 9am. Sunny, with a high near 86. East wind 8 to 16 mph. Chance of precipitation is 20%.

    High: 86 °F

    Isolated
    Showers

  • Saturday Night

    Saturday Night: Scattered showers. Partly cloudy, with a low around 72. East wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers. Partly sunny, with a high near 88. East wind 7 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 88 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. Southeast wind 5 to 7 mph.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Scattered showers, mainly before noon. Mostly sunny, with a high near 87. East southeast wind 7 to 11 mph. Chance of precipitation is 30%.

    High: 87 °F

    Scattered
    Showers then
    Mostly Sunny

Detailed Forecast

Overnight
Isolated showers. Partly cloudy, with a low around 71. East wind around 6 mph. Chance of precipitation is 20%.
Friday
Isolated showers before 3pm. Sunny, with a high near 87. East southeast wind 8 to 14 mph. Chance of precipitation is 20%.
Friday Night
Scattered showers, mainly between 9pm and 3am. Mostly clear, with a low around 72. East southeast wind 5 to 8 mph. Chance of precipitation is 50%.
Saturday
Isolated showers after 9am. Sunny, with a high near 86. East wind 8 to 16 mph. Chance of precipitation is 20%.
Saturday Night
Scattered showers. Partly cloudy, with a low around 72. East wind 6 to 8 mph. Chance of precipitation is 30%.
Sunday
Scattered showers. Partly sunny, with a high near 88. East wind 7 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Sunday Night
Mostly clear, with a low around 72. Southeast wind 5 to 7 mph.
Monday
Scattered showers, mainly before noon. Mostly sunny, with a high near 87. East southeast wind 7 to 11 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 73. South southeast wind around 6 mph.
Tuesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Wednesday
Scattered showers. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Thursday
Scattered showers. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Guaynabo PR
 18.39°N 66.11°W (Elev. 151 ft)
Last Update:
9:48 pm AST Feb 19, 2026
Forecast Valid:
1am AST Feb 20, 2026-6pm AST Feb 26, 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