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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Partly Cloudy

82°F

28°C

Humidity 58%
Wind Speed E 10 G 17 mph
Barometer 29.94 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 20 Mar 9:56 am AST
Extended Forecast for

2 Miles WNW Catano PR

  • Today

    Today: Scattered showers, mainly after noon. Partly sunny, with a high near 87. Southeast wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 87 °F

    Scattered
    Showers

  • Tonight

    Tonight: Isolated showers before 9pm, then isolated showers after midnight. Partly cloudy, with a low around 75. South southeast wind 6 to 8 mph. Chance of precipitation is 10%.

    Low: 75 °F

    Isolated
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm, mainly after noon. Increasing clouds, with a high near 87. South southeast wind 7 to 11 mph. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.

    High: 87 °F

    Isolated
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Scattered showers. Mostly cloudy, with a low around 74. Light south southwest wind. Chance of precipitation is 40%.

    Low: 74 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 83. Light and variable wind becoming north 6 to 11 mph in the morning. Chance of precipitation is 70%.

    High: 83 °F

    Scattered
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 74. Northeast wind around 9 mph. Chance of precipitation is 70%.

    Low: 74 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely. Mostly cloudy, with a high near 82. Northeast wind around 11 mph. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely. Mostly cloudy, with a low around 74. East northeast wind around 9 mph. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, mainly before noon. Mostly cloudy, with a high near 82. East northeast wind 9 to 11 mph. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

Detailed Forecast

Today
Scattered showers, mainly after noon. Partly sunny, with a high near 87. Southeast wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Tonight
Isolated showers before 9pm, then isolated showers after midnight. Partly cloudy, with a low around 75. South southeast wind 6 to 8 mph. Chance of precipitation is 10%.
Saturday
Showers likely and possibly a thunderstorm, mainly after noon. Increasing clouds, with a high near 87. South southeast wind 7 to 11 mph. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 74. Light south southwest wind. Chance of precipitation is 40%.
Sunday
Scattered showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 83. Light and variable wind becoming north 6 to 11 mph in the morning. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 74. Northeast wind around 9 mph. Chance of precipitation is 70%.
Monday
Showers likely. Mostly cloudy, with a high near 82. Northeast wind around 11 mph. Chance of precipitation is 70%.
Monday Night
Showers likely. Mostly cloudy, with a low around 74. East northeast wind around 9 mph. Chance of precipitation is 60%.
Tuesday
Showers likely, mainly before noon. Mostly cloudy, with a high near 82. East northeast wind 9 to 11 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Wednesday
Scattered showers. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Thursday
Scattered showers. Partly sunny, with a high near 84. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Catano PR
 18.45°N 66.14°W (Elev. 3 ft)
Last Update:
2:07 am AST Mar 20, 2026
Forecast Valid:
10am AST Mar 20, 2026-6pm AST Mar 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