National Weather Service United States Department of Commerce

A stalled frontal boundary and ample monsoonal moisture will lead to flash flood potential from the Great Basin to the Great Plains tonight and Tuesday

A stalled frontal boundary will set up along the southern and central Rockies for the next couple of days providing focus for showers and thunderstorms. In addition, ample monsoonal moisture will stream in across the southwest bringing enough moisture to introduce a flash flood threat from the Great Basin and Southwest eastward across the central and southern Rockies into the adjacent Plains.
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Hazardous Weather Conditions

Current Conditions

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Toa Baja PR

7 Day Forecast

For More Weather Information:

San Juan, PR Local Forecast Office

Today

Scattered Showers Chance for Measurable Precipitation 30%

Scattered
Showers

High: 90 °F

Tonight

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

Low: 75 °F

Wednesday

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

High: 91 °F

Wednesday
Night

Isolated Showers Chance for Measurable Precipitation 10%

Isolated
Showers

Low: 75 °F

Thursday

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

High: 91 °F

Thursday
Night

Isolated Showers Chance for Measurable Precipitation 10%

Isolated
Showers

Low: 76 °F

Friday

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

High: 90 °F

Friday
Night

Isolated Showers Chance for Measurable Precipitation 10%

Isolated
Showers

Low: 76 °F

Saturday

Isolated Showers Chance for Measurable Precipitation 10%

Isolated
Showers

High: 92 °F

Detailed Forecast

  • Today Isolated showers, then scattered showers and thunderstorms after noon. Mostly sunny, with a high near 90. Heat index values as high as 97. East wind 8 to 13 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Tonight Isolated showers. Partly cloudy, with a low around 75. East southeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 20%.
  • Wednesday Isolated showers. Mostly sunny, with a high near 91. Heat index values as high as 100. East wind 9 to 14 mph. Chance of precipitation is 20%.
  • Wednesday Night Isolated showers. Mostly clear, with a low around 75. East wind 5 to 10 mph. Chance of precipitation is 10%.
  • Thursday Isolated showers. Sunny, with a high near 91. East northeast wind 7 to 15 mph. Chance of precipitation is 20%.
  • Thursday Night Isolated showers. Partly cloudy, with a low around 76. East wind around 8 mph. Chance of precipitation is 10%.
  • Friday Isolated showers. Sunny, with a high near 90. East wind around 9 mph. Chance of precipitation is 20%.
  • Friday Night Isolated showers. Mostly clear, with a low around 76. East wind around 9 mph. Chance of precipitation is 10%.
  • Saturday Isolated showers. Sunny, with a high near 92. East wind around 10 mph. Chance of precipitation is 10%.
  • Saturday Night Isolated showers. Partly cloudy, with a low around 76. Chance of precipitation is 20%.
  • Sunday Scattered showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
  • Sunday Night Scattered showers. Mostly clear, with a low around 77. Chance of precipitation is 30%.
  • Monday Isolated showers. Sunny, with a high near 90. Chance of precipitation is 10%.