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

Flooding Threats in the West and Southeast This Week

Monsoonal storms will continue to generate flash and urban flooding impacts into mid-week from the Intermountain West to the High Plains along the Rocky Mountain Front. Flash, urban, and isolated river flooding impacts are possible through Friday from coastal Virginia to the Georgia Coast as a stalled front brings periods of heavy rainfall to the Coastal Plain. 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

78°F

26°C

Humidity 87%
Wind Speed Calm
Barometer 30.04 in (1017.1 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 3 Aug 5:56 am AST
Extended Forecast for

Loiza PR

  • Today

    Today: Scattered showers and thunderstorms. Mostly sunny, with a high near 87. East wind 9 to 13 mph. Chance of precipitation is 40%.

    Scattered
    Showers

    High: 87 °F

  • Tonight

    Tonight: Scattered showers, mainly after 3am. Partly cloudy, with a low around 78. East southeast wind 7 to 10 mph. Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 78 °F

  • Wednesday

    Wednesday: Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then isolated showers after 3pm. Mostly sunny, with a high near 86. East wind 9 to 14 mph. Chance of precipitation is 40%.

    Scattered
    Showers

    High: 86 °F

  • Wednesday
    Night

    Wednesday Night: Scattered showers. Partly cloudy, with a low around 79. East southeast wind 9 to 11 mph. Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 79 °F

  • Thursday

    Thursday: Scattered showers, mainly before noon. Mostly sunny, with a high near 88. East wind 11 to 14 mph. Chance of precipitation is 30%.

    Scattered
    Showers

    High: 88 °F

  • Thursday
    Night

    Thursday Night: Scattered showers, mainly after midnight. Partly cloudy, with a low around 81. East southeast wind around 11 mph. Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 81 °F

  • Friday

    Friday: Scattered showers, mainly before noon. Mostly sunny, with a high near 89. East wind 10 to 13 mph. Chance of precipitation is 30%.

    Scattered
    Showers then
    Mostly Sunny

    High: 89 °F

  • Friday
    Night

    Friday Night: Scattered showers. Partly cloudy, with a low around 79. East wind around 10 mph. Chance of precipitation is 50%.

    Scattered
    Showers

    Low: 79 °F

  • Saturday

    Saturday: Scattered showers, mainly before noon. Mostly sunny, with a high near 89. East wind around 10 mph. Chance of precipitation is 40%.

    Scattered
    Showers then
    Mostly Sunny

    High: 89 °F

Detailed Forecast

Today
Scattered showers and thunderstorms. Mostly sunny, with a high near 87. East wind 9 to 13 mph. Chance of precipitation is 40%.
Tonight
Scattered showers, mainly after 3am. Partly cloudy, with a low around 78. East southeast wind 7 to 10 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then isolated showers after 3pm. Mostly sunny, with a high near 86. East wind 9 to 14 mph. Chance of precipitation is 40%.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 79. East southeast wind 9 to 11 mph. Chance of precipitation is 30%.
Thursday
Scattered showers, mainly before noon. Mostly sunny, with a high near 88. East wind 11 to 14 mph. Chance of precipitation is 30%.
Thursday Night
Scattered showers, mainly after midnight. Partly cloudy, with a low around 81. East southeast wind around 11 mph. Chance of precipitation is 30%.
Friday
Scattered showers, mainly before noon. Mostly sunny, with a high near 89. East wind 10 to 13 mph. Chance of precipitation is 30%.
Friday Night
Scattered showers. Partly cloudy, with a low around 79. East wind around 10 mph. Chance of precipitation is 50%.
Saturday
Scattered showers, mainly before noon. Mostly sunny, with a high near 89. East wind around 10 mph. Chance of precipitation is 40%.
Saturday Night
Scattered showers. Partly cloudy, with a low around 79. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Scattered showers. Partly cloudy, with a low around 80. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 89.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Loiza PR
 18.44°N 65.89°W (Elev. 3 ft)
Last Update:
3:35 am AST Aug 3, 2021
Forecast Valid:
7am AST Aug 3, 2021-6pm AST Aug 9, 2021
 
Forecast Discussion
 
Get as KML Get as XML

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