Tracking Storm System Across the Central U.S.

A storm system will slowly continue to press across the central U.S. Friday and Saturday with widespread showers and thunderstorms. Slight risks for severe thunderstorms and excessive rainfall have been issued Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. 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

81°F

27°C

Humidity 74%
Wind Speed S 5 mph
Barometer 29.81 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 17 Oct 2:56 am AST
Extended Forecast for

San Juan PR

  • Overnight

    Overnight: Isolated showers.  Mostly clear, with a low around 77. South southwest wind around 5 mph.  Chance of precipitation is 10%.

    Low: 77 °F

    Isolated
    Showers

  • Friday

    Friday: Isolated showers before noon, then showers and possibly a thunderstorm between noon and 3pm, then scattered showers after 3pm.  High near 88. South southwest wind around 5 mph becoming light and variable  in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    High: 88 °F

    Isolated
    Showers then
    Showers

  • Friday Night

    Friday Night: Scattered showers, mainly after 3am.  Partly cloudy, with a low around 77. Calm wind becoming south southeast around 5 mph.  Chance of precipitation is 30%.

    Low: 77 °F

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers, then showers likely and possibly a thunderstorm after 3pm.  Partly sunny, with a high near 88. Light and variable wind becoming east northeast 5 to 7 mph in the afternoon.  Chance of precipitation is 60%.

    High: 88 °F

    Scattered
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Scattered showers and thunderstorms.  Mostly cloudy, with a low around 78. East southeast wind 3 to 5 mph.  Chance of precipitation is 50%.

    Low: 78 °F

    Scattered
    Showers

  • Sunday

    Sunday: Isolated showers.  Mostly sunny, with a high near 87. East wind 7 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    High: 87 °F

    Isolated
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 79. East wind around 8 mph.

    Low: 79 °F

    Partly Cloudy

  • Monday

    Monday: Scattered showers.  Partly sunny, with a high near 89. East wind 9 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%.

    High: 89 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. East wind around 8 mph.

    Low: 78 °F

    Mostly Clear

Detailed Forecast

Overnight
Isolated showers. Mostly clear, with a low around 77. South southwest wind around 5 mph. Chance of precipitation is 10%.
Friday
Isolated showers before noon, then showers and possibly a thunderstorm between noon and 3pm, then scattered showers after 3pm. High near 88. South southwest wind around 5 mph becoming light and variable in the afternoon. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Friday Night
Scattered showers, mainly after 3am. Partly cloudy, with a low around 77. Calm wind becoming south southeast around 5 mph. Chance of precipitation is 30%.
Saturday
Scattered showers, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 88. Light and variable wind becoming east northeast 5 to 7 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. East southeast wind 3 to 5 mph. Chance of precipitation is 50%.
Sunday
Isolated showers. Mostly sunny, with a high near 87. East wind 7 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 79. East wind around 8 mph.
Monday
Scattered showers. Partly sunny, with a high near 89. East wind 9 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Monday Night
Mostly clear, with a low around 78. East wind around 8 mph.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Clear, with a low around 78.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
San Juan PR
 18.4°N 66.07°W (Elev. 56 ft)
3:38 am AST Oct 17, 2025
3am AST Oct 17, 2025-6pm AST Oct 23, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database