Severe thunderstorms and heavy rain possible for portions of the southern and central plains and the lower Great Lakes. Hot conditions in the Northwest.

scattered to numerous showers and thunderstorms are expected across portions of the central and southern plains and across portions of the lower Great Lakes. Some thunderstorms may be severe with damaging winds and large hail. Hot and dry conditions are expected in the Northwest. High temperatures today and Friday will be 10 to 20 degrees above average across western Washington and Oregon. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

Mostly Cloudy

31°C

87°F

Humidity 72%
Wind Speed E 17 km/h
Barometer 1012.2 mb (29.90 in)
Dewpoint 25°C (77°F)
Visibility 16 km
Heat Index37°C (99°F)
Last update 25 Aug 4:56 pm AST
Extended Forecast for

San Juan PR

  • This
    Afternoon

    This Afternoon: Scattered showers.  Partly sunny, with a high near 33. East wind around 23 km/h.  Chance of precipitation is 50%. New precipitation amounts of less than 1 mm possible.

    Scattered
    Showers

    High: 33 °C

  • Tonight

    Tonight: Scattered showers, mainly before 8pm.  Mostly clear, with a low around 25. East wind 11 to 14 km/h.  Chance of precipitation is 30%. New precipitation amounts between 1 and 2.5 mm possible.

    Scattered
    Showers

    Low: 25 °C

  • Friday

    Friday: Isolated showers, then scattered showers and thunderstorms after noon.  Increasing clouds, with a high near 32. Heat index values as high as 37. East southeast wind 14 to 19 km/h increasing to 22 to 27 km/h in the afternoon.  Chance of precipitation is 50%. New rainfall amounts between 2.5 and 5 mm possible.

    Isolated
    Showers then
    Scattered
    Showers

    High: 32 °C

  • Friday
    Night

    Friday Night: Isolated showers.  Partly cloudy, with a low around 25. Southeast wind 10 to 13 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 25 °C

  • Saturday

    Saturday: Isolated showers, then scattered showers and thunderstorms after noon.  Mostly sunny, with a high near 32. Southeast wind 11 to 21 km/h.  Chance of precipitation is 40%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Scattered
    Showers

    High: 32 °C

  • Saturday
    Night

    Saturday Night: Isolated showers.  Partly cloudy, with a low around 25. South southeast wind 8 to 13 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 25 °C

  • Sunday

    Sunday: Isolated showers, then scattered showers and thunderstorms after noon.  Partly sunny, with a high near 33. East southeast wind 10 to 16 km/h.  Chance of precipitation is 30%.

    Scattered
    Showers

    High: 33 °C

  • Sunday
    Night

    Sunday Night: Isolated showers.  Partly cloudy, with a low around 26. Southeast wind 10 to 13 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    Low: 26 °C

  • Monday

    Monday: Isolated showers.  Mostly sunny, with a high near 33. East southeast wind 13 to 16 km/h.  Chance of precipitation is 20%.

    Isolated
    Showers

    High: 33 °C

Detailed Forecast

This Afternoon
Scattered showers. Partly sunny, with a high near 33. East wind around 23 km/h. Chance of precipitation is 50%. New precipitation amounts of less than 1 mm possible.
Tonight
Scattered showers, mainly before 8pm. Mostly clear, with a low around 25. East wind 11 to 14 km/h. Chance of precipitation is 30%. New precipitation amounts between 1 and 2.5 mm possible.
Friday
Isolated showers, then scattered showers and thunderstorms after noon. Increasing clouds, with a high near 32. Heat index values as high as 37. East southeast wind 14 to 19 km/h increasing to 22 to 27 km/h in the afternoon. Chance of precipitation is 50%. New rainfall amounts between 2.5 and 5 mm possible.
Friday Night
Isolated showers. Partly cloudy, with a low around 25. Southeast wind 10 to 13 km/h. Chance of precipitation is 20%.
Saturday
Isolated showers, then scattered showers and thunderstorms after noon. Mostly sunny, with a high near 32. Southeast wind 11 to 21 km/h. Chance of precipitation is 40%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Saturday Night
Isolated showers. Partly cloudy, with a low around 25. South southeast wind 8 to 13 km/h. Chance of precipitation is 20%.
Sunday
Isolated showers, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 33. East southeast wind 10 to 16 km/h. Chance of precipitation is 30%.
Sunday Night
Isolated showers. Partly cloudy, with a low around 26. Southeast wind 10 to 13 km/h. Chance of precipitation is 20%.
Monday
Isolated showers. Mostly sunny, with a high near 33. East southeast wind 13 to 16 km/h. Chance of precipitation is 20%.
Monday Night
Isolated showers. Partly cloudy, with a low around 25. Chance of precipitation is 20%.
Tuesday
Isolated showers. Mostly sunny, with a high near 33. Chance of precipitation is 20%.
Tuesday Night
Isolated showers. Partly cloudy, with a low around 26. Chance of precipitation is 20%.
Wednesday
Isolated showers. Mostly sunny, with a high near 32. Chance of precipitation is 20%.
Wednesday Night
Isolated showers. Partly cloudy, with a low around 26. Chance of precipitation is 20%.
Thursday
Isolated showers. Mostly sunny, with a high near 33.
Click Map For Forecast
Point Forecast:
San Juan PR
 18.41°N 66.07°W (Elev. 17 m)
1:01 pm AST Aug 25, 2016
5pm AST Aug 25, 2016-6pm AST Sep 1, 2016
 
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