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Mid-Atlantic Severe Storms; Western Heat and Fire Weather Threats

A frontal system will produce a line of strong to severe thunderstorms with potential for damaging winds, hail, and locally heavy rain in the Mid-Atlantic and into the Northeast. Isolated storms may develop in the High Plains and Upper Midwest. Dangerous heat and critical fire weather threats will develop across the Southwest and Great Basin. Record highs will be possible into the High Plains. 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

26°C

79°F

Humidity 85%
Wind Speed Calm
Barometer 1016.5 mb (30.02 in)
Dewpoint 23°C (74°F)
Visibility 16 km
Heat Index28°C (83°F)
Last update 13 Jun 1:56 am AST
Extended Forecast for

Loiza PR

  • Overnight

    Overnight: Scattered showers. Partly cloudy, with a low around 26. East southeast wind around 18 km/h. Chance of precipitation is 40%.

    Scattered
    Showers

    Low: 26 °C

  • Sunday

    Sunday: Scattered showers, mainly after 3pm. Mostly sunny, with a high near 32. East wind 16 to 24 km/h, with gusts as high as 37 km/h. Chance of precipitation is 40%.

    Scattered
    Showers

    High: 32 °C

  • Sunday
    Night

    Sunday Night: Scattered showers, mainly between 9pm and 3am. Partly cloudy, with a low around 26. East wind 21 to 23 km/h, with gusts as high as 34 km/h. Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 26 °C

  • Monday

    Monday: Isolated showers after noon. Mostly sunny, with a high near 33. Heat index values as high as 39. East wind around 24 km/h, with gusts as high as 37 km/h. Chance of precipitation is 20%.

    Sunny then
    Isolated
    Showers

    High: 33 °C

  • Monday
    Night

    Monday Night: Scattered showers. Partly cloudy, with a low around 27. East wind around 24 km/h, with gusts as high as 35 km/h. Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 27 °C

  • Tuesday

    Tuesday: Isolated showers. Mostly sunny, with a high near 32. East wind 27 to 29 km/h, with gusts as high as 42 km/h. Chance of precipitation is 20%.

    Isolated
    Showers

    High: 32 °C

  • Tuesday
    Night

    Tuesday Night: Scattered showers. Partly cloudy, with a low around 27. East wind 21 to 23 km/h, with gusts as high as 34 km/h. Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 27 °C

  • Wednesday

    Wednesday: Mostly sunny, with a high near 32. East wind 24 to 26 km/h, with gusts as high as 37 km/h.

    Mostly Sunny

    High: 32 °C

  • Wednesday
    Night

    Wednesday Night: Scattered showers. Partly cloudy, with a low around 27. East wind around 21 km/h, with gusts as high as 32 km/h. Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 27 °C

Detailed Forecast

Overnight
Scattered showers. Partly cloudy, with a low around 26. East southeast wind around 18 km/h. Chance of precipitation is 40%.
Sunday
Scattered showers, mainly after 3pm. Mostly sunny, with a high near 32. East wind 16 to 24 km/h, with gusts as high as 37 km/h. Chance of precipitation is 40%.
Sunday Night
Scattered showers, mainly between 9pm and 3am. Partly cloudy, with a low around 26. East wind 21 to 23 km/h, with gusts as high as 34 km/h. Chance of precipitation is 30%.
Monday
Isolated showers after noon. Mostly sunny, with a high near 33. Heat index values as high as 39. East wind around 24 km/h, with gusts as high as 37 km/h. Chance of precipitation is 20%.
Monday Night
Scattered showers. Partly cloudy, with a low around 27. East wind around 24 km/h, with gusts as high as 35 km/h. Chance of precipitation is 30%.
Tuesday
Isolated showers. Mostly sunny, with a high near 32. East wind 27 to 29 km/h, with gusts as high as 42 km/h. Chance of precipitation is 20%.
Tuesday Night
Scattered showers. Partly cloudy, with a low around 27. East wind 21 to 23 km/h, with gusts as high as 34 km/h. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 32. East wind 24 to 26 km/h, with gusts as high as 37 km/h.
Wednesday Night
Scattered showers. Partly cloudy, with a low around 27. East wind around 21 km/h, with gusts as high as 32 km/h. Chance of precipitation is 30%.
Thursday
Scattered showers, mainly before noon. Mostly sunny, with a high near 32. Chance of precipitation is 30%.
Thursday Night
Scattered showers. Partly cloudy, with a low around 27. Chance of precipitation is 30%.
Friday
Scattered showers. Partly sunny, with a high near 32. Chance of precipitation is 50%.
Friday Night
Scattered showers. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 32.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Loiza PR
 18.44°N 65.89°W (Elev. 1 m)
Last Update:
3:46 pm AST Jun 12, 2021
Forecast Valid:
2am AST Jun 13, 2021-6pm AST Jun 19, 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