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

Significant Flood Threat Continues For South-Central U.S.

A widespread and significant flood risk continues across the south-central U.S. from repeated rounds of intense rain and strong to severe thunderstorms. Flash flood watches are in effect for large part of the ArkLaTex. Today's concern extends from the Louisiana and extreme Upper Texas Gulf Coast to northeastern Texas and southeastern Oklahoma before shifting to all of eastern Texas on Wednesday. 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

90°F

32°C

Humidity 50%
Wind Speed SE 9 mph
Barometer 29.96 in (1014.2 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 18 May 4:56 pm AST
Extended Forecast for

Loiza PR

  • Tonight

    Tonight: Isolated showers. Partly cloudy, with a low around 76. South southeast wind 7 to 10 mph. Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 76 °F

  • Wednesday

    Wednesday: Isolated showers. Mostly sunny, with a high near 90. East southeast wind 8 to 14 mph. Chance of precipitation is 20%.

    Isolated
    Showers

    High: 90 °F

  • Wednesday
    Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 77. Southeast wind around 7 mph. Chance of precipitation is 50%.

    Scattered
    Showers

    Low: 77 °F

  • Thursday

    Thursday: Scattered showers, mainly after noon. Mostly sunny, with a high near 87. East southeast wind around 11 mph. Chance of precipitation is 30%.

    Scattered
    Showers

    High: 87 °F

  • Thursday
    Night

    Thursday Night: Scattered showers. Mostly cloudy, with a low around 77. East wind 9 to 11 mph. Chance of precipitation is 40%.

    Scattered
    Showers

    Low: 77 °F

  • Friday

    Friday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 87. East southeast wind 10 to 14 mph. Chance of precipitation is 50%.

    Scattered
    Showers

    High: 87 °F

  • Friday
    Night

    Friday Night: Scattered showers. Mostly cloudy, with a low around 77. East wind around 10 mph. Chance of precipitation is 40%.

    Scattered
    Showers

    Low: 77 °F

  • Saturday

    Saturday: Scattered showers. Partly sunny, with a high near 87. East southeast wind 10 to 13 mph. Chance of precipitation is 40%.

    Scattered
    Showers

    High: 87 °F

  • Saturday
    Night

    Saturday Night: Scattered showers. Mostly cloudy, with a low around 79. East southeast wind around 11 mph. Chance of precipitation is 50%.

    Scattered
    Showers

    Low: 79 °F

Detailed Forecast

Tonight
Isolated showers. Partly cloudy, with a low around 76. South southeast wind 7 to 10 mph. Chance of precipitation is 20%.
Wednesday
Isolated showers. Mostly sunny, with a high near 90. East southeast wind 8 to 14 mph. Chance of precipitation is 20%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 77. Southeast wind around 7 mph. Chance of precipitation is 50%.
Thursday
Scattered showers, mainly after noon. Mostly sunny, with a high near 87. East southeast wind around 11 mph. Chance of precipitation is 30%.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 77. East wind 9 to 11 mph. Chance of precipitation is 40%.
Friday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 87. East southeast wind 10 to 14 mph. Chance of precipitation is 50%.
Friday Night
Scattered showers. Mostly cloudy, with a low around 77. East wind around 10 mph. Chance of precipitation is 40%.
Saturday
Scattered showers. Partly sunny, with a high near 87. East southeast wind 10 to 13 mph. Chance of precipitation is 40%.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 79. East southeast wind around 11 mph. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 78.
Monday
Scattered showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 79.
Tuesday
Mostly sunny, with a high near 88.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Loiza PR
 18.44°N 65.89°W (Elev. 3 ft)
Last Update:
4:26 pm AST May 18, 2021
Forecast Valid:
7pm AST May 18, 2021-6pm AST May 25, 2021
 
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