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

Strong to Severe Thunderstorms Continue Tonight in the East; Early Heat Wave in the West

Scattered strong to severe storms with damaging winds and potentially a tornado or two are expected tonight from the coastal Carolinas into the Mid-Atlantic states. An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

76°F

24°C

Humidity 74%
Wind Speed E 9 mph
Barometer 30.02 in (1016.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 17 Mar 3:56 am AST
Extended Forecast for

2 Miles NNE Catano PR

  • Overnight

    Overnight: Scattered showers. Partly cloudy, with a low around 75. East southeast wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Isolated showers. Mostly sunny, with a high near 81. East wind 16 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 81 °F

    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers, mainly after 9pm. Mostly cloudy, with a low around 74. East wind 10 to 13 mph. Chance of precipitation is 50%.

    Low: 74 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers, mainly before 3pm. Mostly sunny, with a high near 82. East wind 13 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 82 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Isolated showers before 9pm. Mostly clear, with a low around 74. East wind 7 to 10 mph. Chance of precipitation is 10%.

    Low: 74 °F

    Isolated
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Scattered showers. Partly sunny, with a high near 82. East wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 82 °F

    Scattered
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 73. Southeast wind 5 to 8 mph.

    Low: 73 °F

    Partly Cloudy

  • Friday

    Friday: Scattered showers, mainly after noon. Partly sunny, with a high near 83. Southeast wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 83 °F

    Mostly Sunny
    then
    Scattered
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73. South wind 3 to 5 mph.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Overnight
Scattered showers. Partly cloudy, with a low around 75. East southeast wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Tuesday
Isolated showers. Mostly sunny, with a high near 81. East wind 16 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Tuesday Night
Scattered showers, mainly after 9pm. Mostly cloudy, with a low around 74. East wind 10 to 13 mph. Chance of precipitation is 50%.
Wednesday
Scattered showers, mainly before 3pm. Mostly sunny, with a high near 82. East wind 13 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Wednesday Night
Isolated showers before 9pm. Mostly clear, with a low around 74. East wind 7 to 10 mph. Chance of precipitation is 10%.
Thursday
Scattered showers. Partly sunny, with a high near 82. East wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 73. Southeast wind 5 to 8 mph.
Friday
Scattered showers, mainly after noon. Partly sunny, with a high near 83. Southeast wind 5 to 10 mph. Chance of precipitation is 50%.
Friday Night
Partly cloudy, with a low around 73. South wind 3 to 5 mph.
Saturday
Showers likely, mainly after noon. Partly sunny, with a high near 82. Chance of precipitation is 70%.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 73. Chance of precipitation is 50%.
Sunday
Showers likely. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Sunday Night
Scattered showers. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.
Monday
Scattered showers. Mostly sunny, with a high near 81. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Catano PR
 18.47°N 66.1°W (Elev. 0 ft)
Last Update:
2:56 am AST Mar 17, 2026
Forecast Valid:
4am AST Mar 17, 2026-6pm AST Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation