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FPCA52 TJSJ 201844
ZFPPR

Zone Forecast for Puerto Rico and the U.S. Virgin Islands
National Weather Service San Juan PR
243 PM AST Thu Aug 20 2026

PRZ001-210800-
San Juan and Vicinity-
Including the municipalities of Bayamon, Carolina, Catano, Guaynabo,
San Juan, Toa Alta, Toa Baja, and Trujillo Alto
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Clear this evening, then partly cloudy with isolated
showers after midnight. Hazy. Lows around 82. East winds 10 to
15 mph. Chance of rain 20 percent.
.FRIDAY...Partly cloudy with isolated showers. Hazy. Highs around
91. East winds 15 to 20 mph. Chance of rain 20 percent.
.FRIDAY NIGHT...Hazy in the evening. Partly cloudy with isolated
showers. Lows around 82. East winds 10 to 15 mph. Chance of rain
20 percent.
.SATURDAY...Sunny with isolated showers in the morning, then
variably cloudy with scattered showers in the afternoon. Highs
around 93. Temperature falling in the afternoon. East winds 10 to
15 mph with gusts up to 25 mph. Chance of rain 40 percent.
.SATURDAY NIGHT...Variably cloudy with scattered showers. Lows
around 82. East winds 10 to 15 mph. Chance of rain 40 percent.
.SUNDAY...Variably cloudy with scattered showers in the morning,
then partly cloudy with isolated showers in the afternoon. Highs
around 93. Temperature falling in the afternoon. Chance of rain
40 percent.
.SUNDAY NIGHT...Variably cloudy with scattered showers. Lows
around 82. Chance of rain 40 percent.
.MONDAY...Partly cloudy with isolated showers. Highs around 93.
Temperature falling in the afternoon. Chance of rain 20 percent.
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain less than 20 percent.
.TUESDAY...Partly cloudy with isolated showers. Highs around 93.
Temperature falling in the afternoon. Chance of rain 20 percent.
.TUESDAY NIGHT...Mostly cloudy with scattered showers with
isolated thunderstorms. Lows around 82. Chance of rain
50 percent.
.WEDNESDAY...Partly cloudy with isolated showers. Highs around
94. Temperature falling in the afternoon. Chance of rain
20 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 82. Chance of rain 20 percent.
.THURSDAY...Variably cloudy with scattered showers. Highs around
93. Temperature falling in the afternoon. Chance of rain
50 percent.

$$

PRZ002-210800-
Northeast-
Including the municipalities of Ceiba, Canovanas, Fajardo, Humacao,
Loiza, Luquillo, Naguabo, and Rio Grande
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Partly cloudy with isolated showers. Hazy. Lows around
82. East winds 10 to 15 mph with gusts up to 25 mph. Chance of
rain 20 percent.
.FRIDAY...Partly cloudy with isolated showers. Hazy. Highs around
92. East winds 10 to 15 mph with gusts up to 25 mph. Chance of
rain 20 percent.
.FRIDAY NIGHT...Variably cloudy with scattered showers. Lows
around 82. East winds 10 to 15 mph. Chance of rain 30 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 94. Temperature falling in the afternoon. East winds
10 to 15 mph. Chance of rain 40 percent.
.SATURDAY NIGHT...Variably cloudy with scattered showers. Lows
around 82. East winds 10 to 15 mph. Chance of rain 40 percent.
.SUNDAY...Variably cloudy with scattered showers in the morning,
then partly cloudy with isolated showers in the afternoon. Highs
around 94. Chance of rain 40 percent.
.SUNDAY NIGHT...Variably cloudy with scattered showers. Lows
around 82. Chance of rain 40 percent.
.MONDAY...Variably cloudy with scattered showers in the morning,
then partly cloudy with isolated showers in the afternoon. Highs
around 94. Chance of rain 50 percent.
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain less than 20 percent.
.TUESDAY...Breezy. Variably cloudy with scattered showers. Highs
around 94. Chance of rain 40 percent.
.TUESDAY NIGHT...Mostly cloudy with scattered showers with
isolated thunderstorms. Lows around 82. Chance of rain
50 percent.
.WEDNESDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 94. Chance of rain 50 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 82. Chance of rain 20 percent.
.THURSDAY...Mostly cloudy with scattered showers. Highs around
93. Chance of rain 50 percent.

$$

PRZ003-210800-
Southeast-
Including the municipalities of Arroyo, Guayama, Maunabo, Patillas,
Salinas, and Yabucoa
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Clear this evening, then becoming partly cloudy.
Isolated showers. Hazy. Lows around 82. East winds 10 to 15 mph
with gusts up to 30 mph. Chance of rain 20 percent.
.FRIDAY...Sunny in the morning, then becoming partly cloudy.
Isolated showers. Hazy. Highs around 92. East winds 15 to 20 mph
with gusts up to 30 mph. Chance of rain 20 percent.
.FRIDAY NIGHT...Hazy in the evening. Partly cloudy with isolated
showers. Lows around 82. Northeast winds 10 to 15 mph with gusts
up to 25 mph. Chance of rain 20 percent.
.SATURDAY...Sunny in the morning, then variably cloudy with
scattered showers in the afternoon. Highs around 94. Temperature
falling in the afternoon. East winds 10 to 15 mph with gusts up
to 25 mph. Chance of rain 40 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 82. East winds 10 to 15 mph. Chance of rain 20 percent.
.SUNDAY...Partly cloudy with isolated showers. Highs around 94.
Temperature falling in the afternoon. Chance of rain 20 percent.
.SUNDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain 20 percent.
.MONDAY...Partly cloudy with isolated showers. Highs around 94.
Temperature falling in the afternoon. Chance of rain 20 percent.
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain less than 20 percent.
.TUESDAY...Partly cloudy with isolated showers. Highs around 94.
Temperature falling in the afternoon. Chance of rain 20 percent.
.TUESDAY NIGHT...Variably cloudy with scattered showers with
isolated thunderstorms. Lows around 82. Chance of rain
50 percent.
.WEDNESDAY...Partly cloudy with isolated showers. Highs around
94. Temperature falling in the afternoon. Chance of rain
20 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 82. Chance of rain 20 percent.
.THURSDAY...Partly cloudy with isolated showers. Highs around 94.
Chance of rain 20 percent.

$$

PRZ004-210800-
Eastern Interior-
Including the municipalities of Aguas Buenas, Caguas, Cayey, Cidra,
Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Clear this evening, then partly cloudy with isolated
showers after midnight. Hazy. Lows around 78. East winds 10 to
15 mph. Chance of rain 20 percent.
.FRIDAY...Partly cloudy. Isolated showers in the morning, then
scattered showers in the afternoon. Hazy. Highs around 92. East
winds 10 to 15 mph. Chance of rain 30 percent.
.FRIDAY NIGHT...Hazy in the evening. Partly cloudy with isolated
showers. Lows around 78. East winds 5 to 10 mph. Chance of rain
20 percent.
.SATURDAY...Sunny with isolated showers in the morning, then
variably cloudy with scattered showers in the afternoon. Highs
around 93. Temperature falling in the afternoon. East winds 10 to
15 mph. Chance of rain 40 percent.
.SATURDAY NIGHT...Variably cloudy with scattered showers. Lows
around 78. East winds 5 to 10 mph. Chance of rain 40 percent.
.SUNDAY...Partly cloudy. Scattered showers, mainly in the
morning. Highs around 94. Chance of rain 40 percent.
.SUNDAY NIGHT...Partly cloudy with isolated showers. Lows around
79. Chance of rain 20 percent.
.MONDAY...Partly cloudy with isolated showers. Highs around 94.
Temperature falling in the afternoon. Chance of rain 20 percent.
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows around
79. Chance of rain less than 20 percent.
.TUESDAY...Partly cloudy with isolated showers. Highs around 93.
Temperature falling in the afternoon. Chance of rain 20 percent.
.TUESDAY NIGHT...Mostly cloudy with scattered showers with
isolated thunderstorms. Lows around 79. Chance of rain
50 percent.
.WEDNESDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 94. Temperature falling in the afternoon. Chance of
rain 50 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 79. Chance of rain 20 percent.
.THURSDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 94. Temperature falling in the afternoon. Chance of
rain 40 percent.

$$

PRZ005-210800-
North Central-
Including the municipalities of Arecibo, Barceloneta, Dorado, Florida,
Manati, Vega Alta, and Vega Baja
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Clear this evening, then partly cloudy with isolated
showers after midnight. Hazy. Lows around 82. East winds 10 to
15 mph. Gusts up to 30 mph this evening. Chance of rain less than
20 percent.
.FRIDAY...Breezy. Sunny in the morning, then becoming partly
cloudy. Isolated showers. Hazy. Highs around 92. East winds 10 to
15 mph, becoming northeast 15 to 25 mph in the afternoon. Chance
of rain 20 percent.
.FRIDAY NIGHT...Hazy in the evening. Partly cloudy with isolated
showers. Lows around 82. East winds 10 to 15 mph. Gusts up to
30 mph in the evening. Chance of rain 20 percent.
.SATURDAY...Sunny in the morning, then partly cloudy with
isolated showers in the afternoon. Highs around 94. Temperature
falling in the afternoon. East winds 5 to 10 mph, increasing to
15 to 20 mph in the afternoon. Chance of rain 20 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 82. East winds 10 to 15 mph. Gusts up to 30 mph in the
evening. Chance of rain 20 percent.
.SUNDAY...Partly cloudy with isolated showers. Highs around 94.
Temperature falling in the afternoon. Chance of rain 20 percent.
.SUNDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain 20 percent.
.MONDAY...Partly cloudy with isolated showers. Highs around 94.
Temperature falling in the afternoon. Chance of rain 20 percent.
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain less than 20 percent.
.TUESDAY...Partly cloudy with isolated showers. Highs around 94.
Temperature falling in the afternoon. Chance of rain 20 percent.
.TUESDAY NIGHT...Variably cloudy with scattered showers with
isolated thunderstorms. Lows around 82. Chance of rain
50 percent.
.WEDNESDAY...Breezy. Partly cloudy with isolated showers. Highs
around 94. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 82.
.THURSDAY...Breezy. Partly cloudy with isolated showers. Highs
around 94. Temperature falling in the afternoon. Chance of rain
20 percent.

$$

PRZ006-210800-
Central Interior-
Including the municipalities of Aibonito, Barranquitas, Ciales, Coamo,
Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba
243 PM AST Thu Aug 20 2026

.TONIGHT...Clear, hazy. Lows around 77. East winds 5 to 10 mph.
Gusts up to 25 mph this evening.
.FRIDAY...Sunny with isolated showers in the morning, then partly
cloudy with scattered showers in the afternoon. Hazy. Highs
around 92. Temperature falling in the afternoon. East winds 10 to
15 mph with gusts up to 30 mph. Chance of rain 30 percent.
.FRIDAY NIGHT...Hazy in the evening. Partly cloudy with isolated
showers. Lows around 77. Northeast winds 5 to 10 mph. Chance of
rain less than 20 percent.
.SATURDAY...Sunny in the morning, then partly cloudy with
isolated showers in the afternoon. Highs around 93. Temperature
falling in the afternoon. East winds 10 to 15 mph with gusts up
to 25 mph. Chance of rain 20 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 77. East winds 5 to 10 mph. Chance of rain 20 percent.
.SUNDAY...Partly cloudy. Isolated showers in the morning. Highs
around 93. Chance of rain 20 percent.
.SUNDAY NIGHT...Partly cloudy with isolated showers. Lows around
78. Chance of rain 20 percent.
.MONDAY...Partly cloudy. Isolated showers in the afternoon. Highs
around 93. Chance of rain 20 percent.
.MONDAY NIGHT...Partly cloudy. Lows around 78.
.TUESDAY...Partly cloudy. Isolated showers in the afternoon.
Highs around 92. Temperature falling in the afternoon. Chance of
rain 20 percent.
.TUESDAY NIGHT...Variably cloudy with isolated showers. Lows
around 78. Chance of rain 20 percent.
.WEDNESDAY...Partly cloudy with isolated showers. Highs around
93. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 78. Chance of rain 20 percent.
.THURSDAY...Partly cloudy. Isolated showers in the afternoon.
Highs around 93. Temperature falling in the afternoon. Chance of
rain 20 percent.

$$

PRZ007-210800-
Ponce and Vicinity-
Including the municipalities of Guayanilla, Juana Diaz, Yauco, Penuelas,
Ponce, and Santa Isabel
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Clear, hazy. Lows around 82. East winds 10 to 15 mph.
Gusts up to 30 mph this evening.
.FRIDAY...Sunny in the morning, then partly cloudy with isolated
showers in the afternoon. Hazy. Highs around 92. East winds 15 to
20 mph with gusts up to 30 mph. Chance of rain 20 percent.
.FRIDAY NIGHT...Partly cloudy. Hazy in the evening. Isolated
showers after midnight. Lows around 82. Northeast winds 5 to
10 mph. Gusts up to 25 mph in the evening. Chance of rain less
than 20 percent.
.SATURDAY...Sunny in the morning, then partly cloudy with
isolated showers in the afternoon. Highs around 94. Temperature
falling in the afternoon. East winds 10 to 15 mph with gusts up
to 30 mph. Chance of rain 20 percent.
.SATURDAY NIGHT...Clear in the evening, then becoming partly
cloudy. Isolated showers. Lows around 82. East winds 5 to 10 mph.
Gusts up to 25 mph in the evening. Chance of rain less than
20 percent.
.SUNDAY...Partly cloudy. Highs around 94. Temperature falling in
the afternoon.
.SUNDAY NIGHT...Partly cloudy. Lows around 82.
.MONDAY...Partly cloudy. Isolated showers in the afternoon. Highs
around 94. Chance of rain 20 percent.
.MONDAY NIGHT...Partly cloudy. Lows around 82.
.TUESDAY...Partly cloudy. Isolated showers in the afternoon.
Highs around 94. Chance of rain 20 percent.
.TUESDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain 20 percent.
.WEDNESDAY...Partly cloudy in the morning, then variably cloudy
with scattered showers with isolated thunderstorms in the
afternoon. Highs around 94. Temperature falling in the afternoon.
Chance of rain 50 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 82. Chance of rain 20 percent.
.THURSDAY...Partly cloudy in the morning, then variably cloudy
with scattered showers in the afternoon. Highs around 94.
Temperature falling in the afternoon. Chance of rain 50 percent.

$$

PRZ008-210800-
Northwest-
Including the municipalities of Aguadilla, Camuy, Hatillo, Isabela,
and Quebradillas
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Clear, hazy. Isolated showers after midnight. Lows
around 82. East winds 15 to 20 mph with gusts up to 35 mph.
Chance of rain less than 20 percent.
.FRIDAY...Breezy. Sunny in the morning, then partly cloudy with
scattered showers with isolated thunderstorms in the afternoon.
Hazy. Highs around 92. East winds 10 to 15 mph, becoming
northeast 15 to 25 mph in the afternoon. Chance of rain
40 percent.
.FRIDAY NIGHT...Hazy in the evening. Partly cloudy with isolated
showers. Lows around 82. East winds 15 to 20 mph with gusts up to
30 mph. Chance of rain less than 20 percent.
.SATURDAY...Sunny with isolated showers in the morning, then
variably cloudy with scattered showers in the afternoon. Highs
around 93. Temperature falling in the afternoon. East winds 10 to
15 mph with gusts up to 30 mph. Chance of rain 50 percent.
.SATURDAY NIGHT...Clear in the evening, then partly cloudy with
isolated showers after midnight. Lows around 82. East winds 10 to
15 mph with gusts up to 30 mph. Chance of rain 20 percent.
.SUNDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 94. Temperature falling in the afternoon. Chance of
rain 40 percent.
.SUNDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain less than 20 percent.
.MONDAY...Partly cloudy in the morning, then mostly cloudy with
scattered showers with isolated thunderstorms in the afternoon.
Highs around 94. Temperature falling in the afternoon. Chance of
rain 50 percent.
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain 20 percent.
.TUESDAY...Partly cloudy in the morning, then variably cloudy
with scattered showers in the afternoon. Highs around 94. Chance
of rain 50 percent.
.TUESDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain 20 percent.
.WEDNESDAY...Breezy. Partly cloudy with isolated showers. Highs
around 94. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Breezy. Partly cloudy. Lows around 82.
.THURSDAY...Breezy. Partly cloudy with isolated showers in the
morning, then variably cloudy with scattered showers in the
afternoon. Highs around 94. Temperature falling in the afternoon.
Chance of rain 40 percent.

$$

PRZ009-210800-
Western Interior-
Including the municipalities of Adjuntas, Lares, Las Marias, Maricao,
Sabana Grande, San Sebastian, and Utuado
243 PM AST Thu Aug 20 2026

.TONIGHT...Partly cloudy with isolated showers this evening, then
clear after midnight. Hazy. Lows around 76. East winds 5 to
10 mph. Gusts up to 25 mph this evening. Chance of rain
20 percent.
.FRIDAY...Sunny in the morning, then variably cloudy with
scattered showers with isolated thunderstorms in the afternoon.
Hazy. Highs around 92. East winds 5 to 10 mph with gusts up to
30 mph. Chance of rain 50 percent.
.FRIDAY NIGHT...Partly cloudy. Hazy in the evening. Isolated
showers after midnight. Lows around 76. East winds 5 to 10 mph.
Chance of rain less than 20 percent.
.SATURDAY...Sunny in the morning, then variably cloudy with
scattered showers in the afternoon. Highs around 94. East winds
5 to 10 mph with gusts up to 25 mph. Chance of rain 50 percent.
.SATURDAY NIGHT...Clear in the evening, then partly cloudy with
isolated showers after midnight. Lows around 75. East winds 5 to
10 mph. Chance of rain 20 percent.
.SUNDAY...Partly cloudy with isolated showers. Highs around 94.
Temperature falling in the afternoon. Chance of rain 20 percent.
.SUNDAY NIGHT...Partly cloudy. Lows around 76.
.MONDAY...Partly cloudy in the morning, then mostly cloudy with
scattered showers with isolated thunderstorms in the afternoon.
Highs around 94. Temperature falling in the afternoon. Chance of
rain 50 percent.
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows around
77. Chance of rain 20 percent.
.TUESDAY...Partly cloudy in the morning, then mostly cloudy with
scattered showers with isolated thunderstorms in the afternoon.
Highs around 94. Temperature falling in the afternoon. Chance of
rain 50 percent.
.TUESDAY NIGHT...Partly cloudy with isolated showers. Lows around
77. Chance of rain 20 percent.
.WEDNESDAY...Partly cloudy in the morning, then mostly cloudy
with scattered showers with isolated thunderstorms in the
afternoon. Highs around 94. Temperature falling in the afternoon.
Chance of rain 50 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 77. Chance of rain 20 percent.
.THURSDAY...Partly cloudy in the morning, then variably cloudy
with scattered showers in the afternoon. Highs around 94.
Temperature falling in the afternoon. Chance of rain 50 percent.

$$

PRZ010-210800-
Mayaguez and Vicinity-
Including the municipalities of Aguada, Anasco, Hormigueros, Mayaguez,
Moca, Rincon, and San German
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Partly cloudy with isolated showers this evening, then
clear after midnight. Hazy. Lows around 82. East winds 10 to
15 mph with gusts up to 30 mph. Chance of rain 20 percent.
.FRIDAY...Sunny in the morning, then partly cloudy with scattered
showers with isolated thunderstorms in the afternoon. Hazy. Highs
around 92. East winds 5 to 10 mph with gusts up to 25 mph. Chance
of rain 50 percent.
.FRIDAY NIGHT...Partly cloudy. Isolated showers in the evening.
Hazy in the evening. Lows around 82. East winds 10 to 15 mph with
gusts up to 30 mph. Chance of rain 20 percent.
.SATURDAY...Sunny in the morning, then variably cloudy with
scattered showers in the afternoon. Highs around 94. East winds
5 to 10 mph. Chance of rain 50 percent.
.SATURDAY NIGHT...Clear in the evening, then becoming partly
cloudy. Isolated showers. Lows around 82. East winds 5 to 10 mph
with gusts up to 25 mph. Chance of rain 20 percent.
.SUNDAY...Partly cloudy in the morning, then variably cloudy with
scattered showers in the afternoon. Highs around 94. Chance of
rain 40 percent.
.SUNDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain 20 percent.
.MONDAY...Partly cloudy in the morning, then mostly cloudy with
scattered showers with isolated thunderstorms in the afternoon.
Highs around 94. Chance of rain 50 percent.
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain 20 percent.
.TUESDAY...Partly cloudy in the morning, then mostly cloudy with
scattered showers with isolated thunderstorms in the afternoon.
Highs around 94. Chance of rain 50 percent.
.TUESDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain 20 percent.
.WEDNESDAY...Partly cloudy in the morning, then mostly cloudy
with scattered showers with isolated thunderstorms in the
afternoon. Highs around 94. Temperature falling in the afternoon.
Chance of rain 50 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 82. Chance of rain 20 percent.
.THURSDAY...Partly cloudy in the morning, then variably cloudy
with scattered showers in the afternoon. Highs around 94. Chance
of rain 50 percent.

$$

PRZ011-210800-
Southwest-
Including the municipalities of Cabo Rojo, Guanica, and Lajas
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Clear. Isolated showers this evening. Hazy. Lows
around 82. East winds 15 to 20 mph, diminishing to 5 to 10 mph
after midnight. Gusts up to 35 mph. Chance of rain 20 percent.
.FRIDAY...Sunny in the morning, then partly cloudy with isolated
showers and thunderstorms in the afternoon. Hazy. Highs around
92. Temperature falling in the afternoon. East winds 10 to 15 mph
with gusts up to 35 mph. Chance of rain 20 percent.
.FRIDAY NIGHT...Hazy in the evening. Partly cloudy. Lows around
82. East winds 5 to 10 mph.
.SATURDAY...Sunny in the morning, then partly cloudy with
isolated showers in the afternoon. Highs around 94. East winds
10 to 15 mph with gusts up to 30 mph. Chance of rain 20 percent.
.SATURDAY NIGHT...Clear. Lows around 82. East winds 10 to 15 mph
with gusts up to 25 mph.
.SUNDAY...Partly cloudy. Isolated showers in the afternoon. Highs
around 94. Chance of rain 20 percent.
.SUNDAY NIGHT...Partly cloudy. Lows around 82.
.MONDAY...Partly cloudy. Isolated showers in the afternoon. Highs
around 94. Chance of rain 20 percent.
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain 20 percent.
.TUESDAY...Partly cloudy in the morning, then variably cloudy
with scattered showers in the afternoon. Highs around 94. Chance
of rain 50 percent.
.TUESDAY NIGHT...Partly cloudy with isolated showers. Lows around
82. Chance of rain 20 percent.
.WEDNESDAY...Breezy. Partly cloudy in the morning, then mostly
cloudy with scattered showers with isolated thunderstorms in the
afternoon. Highs around 94. Chance of rain 50 percent.
.WEDNESDAY NIGHT...Variably cloudy with scattered showers. Lows
around 82. Chance of rain 40 percent.
.THURSDAY...Partly cloudy in the morning, then variably cloudy
with scattered showers in the afternoon. Highs around 94. Chance
of rain 50 percent.

$$

PRZ012-210800-
Culebra-
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Clear this evening, then partly cloudy with isolated
showers after midnight. Hazy, breezy with lows around 81. East
winds around 20 mph with gusts up to 30 mph. Chance of rain less
than 20 percent.
.FRIDAY...Breezy. Partly cloudy with isolated showers. Hazy.
Highs around 92. East winds 15 to 20 mph. Chance of rain
20 percent.
.FRIDAY NIGHT...Breezy. Variably cloudy. Hazy in the evening.
Isolated showers in the evening, then scattered showers after
midnight. Lows around 80. East winds 15 to 20 mph. Chance of rain
30 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 94. East winds around 15 mph with gusts up to
25 mph. Chance of rain 40 percent.
.SATURDAY NIGHT...Breezy. Variably cloudy with scattered showers.
Lows around 81. East winds 15 to 20 mph. Chance of rain
40 percent.
.SUNDAY...Breezy. Partly cloudy with isolated showers. Highs
around 94. Chance of rain 20 percent.
.SUNDAY NIGHT...Breezy. Partly cloudy with isolated showers. Lows
around 81. Chance of rain 20 percent.
.MONDAY...Breezy. Variably cloudy with scattered showers. Highs
around 94. Chance of rain 40 percent.
.MONDAY NIGHT...Breezy. Partly cloudy with isolated showers. Lows
around 81. Chance of rain less than 20 percent.
.TUESDAY...Breezy. Partly cloudy with isolated showers in the
morning, then variably cloudy with scattered showers in the
afternoon. Highs around 94. Chance of rain 30 percent.
.TUESDAY NIGHT...Breezy. Variably cloudy with scattered showers.
Lows around 81. Chance of rain 30 percent.
.WEDNESDAY...Breezy. Partly cloudy with isolated showers in the
morning, then variably cloudy with scattered showers in the
afternoon. Highs around 94. Chance of rain 30 percent.
.WEDNESDAY NIGHT...Breezy. Variably cloudy with scattered
showers. Lows around 81. Chance of rain 40 percent.
.THURSDAY...Breezy. Variably cloudy in the morning, then becoming
mostly cloudy. Scattered showers. Highs around 94. Chance of rain
50 percent.

$$

PRZ013-210800-
Vieques-
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Clear until early morning, then becoming partly
cloudy. Isolated showers. Hazy, breezy with lows around 80. East
winds 15 to 20 mph with gusts up to 30 mph. Chance of rain less
than 20 percent.
.FRIDAY...Breezy. Partly cloudy in the morning, then becoming
mostly sunny. Isolated showers. Hazy. Highs around 91. East winds
15 to 20 mph. Chance of rain 20 percent.
.FRIDAY NIGHT...Breezy. Partly cloudy. Hazy in the evening.
Isolated showers in the evening, then scattered showers after
midnight. Lows around 82. East winds 15 to 20 mph. Chance of rain
30 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 92. East winds around 15 mph with gusts up to
25 mph. Chance of rain 40 percent.
.SATURDAY NIGHT...Breezy. Variably cloudy with scattered showers.
Lows around 80. East winds 15 to 20 mph. Chance of rain
30 percent.
.SUNDAY...Breezy. Partly cloudy with isolated showers. Highs
around 93. Chance of rain 20 percent.
.SUNDAY NIGHT...Breezy. Partly cloudy with isolated showers. Lows
around 80. Chance of rain 20 percent.
.MONDAY...Breezy. Mostly cloudy with scattered showers in the
morning, then partly cloudy with isolated showers in the
afternoon. Highs around 93. Temperature falling in the afternoon.
Chance of rain 50 percent.
.MONDAY NIGHT...Breezy. Partly cloudy with isolated showers. Lows
around 80. Chance of rain less than 20 percent.
.TUESDAY...Breezy. Variably cloudy with scattered showers in the
morning, then partly cloudy with isolated showers in the
afternoon. Highs around 93. Chance of rain 30 percent.
.TUESDAY NIGHT...Breezy. Variably cloudy with scattered showers.
Lows around 80. Chance of rain 40 percent.
.WEDNESDAY...Breezy. Partly cloudy with isolated showers in the
morning, then variably cloudy with scattered showers in the
afternoon. Highs around 93. Temperature falling in the afternoon.
Chance of rain 30 percent.
.WEDNESDAY NIGHT...Breezy. Variably cloudy with scattered
showers. Lows around 80. Chance of rain 40 percent.
.THURSDAY...Breezy. Variably cloudy in the morning, then becoming
mostly cloudy. Scattered showers. Highs around 93. Chance of rain
50 percent.

$$

VIZ001-210800-
St Thomas, St John and Adjacent Islands-
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Clear, hazy, breezy with lows around 82. East winds
around 20 mph with gusts up to 30 mph.
.FRIDAY...Breezy. Partly cloudy with isolated showers. Hazy.
Highs around 92. East winds 15 to 20 mph. Chance of rain
20 percent.
.FRIDAY NIGHT...Breezy. Hazy in the evening. Partly cloudy with
isolated showers in the evening, then variably cloudy with
scattered showers after midnight. Lows around 82. East winds
15 to 20 mph. Chance of rain 30 percent.
.SATURDAY...Breezy. Variably cloudy with scattered showers. Highs
around 94. East winds 15 to 20 mph. Chance of rain 40 percent.
.SATURDAY NIGHT...Breezy. Variably cloudy with scattered showers.
Lows around 82. East winds 15 to 20 mph. Chance of rain
40 percent.
.SUNDAY...Breezy. Partly cloudy with isolated showers. Highs
around 94. Chance of rain 20 percent.
.SUNDAY NIGHT...Breezy. Partly cloudy with isolated showers. Lows
around 82. Chance of rain 20 percent.
.MONDAY...Breezy. Variably cloudy with scattered showers. Highs
around 94. Chance of rain 30 percent.
.MONDAY NIGHT...Breezy. Partly cloudy with isolated showers. Lows
around 82. Chance of rain less than 20 percent.
.TUESDAY...Breezy. Partly cloudy with isolated showers in the
morning, then variably cloudy with scattered showers in the
afternoon. Highs around 94. Chance of rain 30 percent.
.TUESDAY NIGHT...Breezy. Variably cloudy with scattered showers.
Lows around 82. Chance of rain 30 percent.
.WEDNESDAY...Breezy. Partly cloudy. Isolated showers in the
morning, then scattered showers in the afternoon. Highs around
94. Chance of rain 30 percent.
.WEDNESDAY NIGHT...Breezy. Partly cloudy with isolated showers.
Lows around 82. Chance of rain 20 percent.
.THURSDAY...Breezy. Variably cloudy in the morning, then becoming
mostly cloudy. Scattered showers. Highs around 94. Chance of rain
50 percent.

$$

VIZ002-210800-
St Croix-
243 PM AST Thu Aug 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

.TONIGHT...Clear this evening, then partly cloudy with isolated
showers after midnight. Hazy, breezy with lows around 80. East
winds 15 to 20 mph with gusts up to 30 mph. Chance of rain less
than 20 percent.
.FRIDAY...Breezy. Partly cloudy with isolated showers. Hazy.
Highs around 92. East winds 15 to 20 mph. Chance of rain less
than 20 percent.
.FRIDAY NIGHT...Breezy. Hazy in the evening. Partly cloudy with
isolated showers. Lows around 82. East winds 15 to 20 mph. Chance
of rain 20 percent.
.SATURDAY...Breezy. Sunny in the morning, then partly cloudy with
isolated showers in the afternoon. Highs around 94. Temperature
falling in the afternoon. East winds 15 to 20 mph. Chance of rain
20 percent.
.SATURDAY NIGHT...Breezy. Partly cloudy with isolated showers.
Lows around 82. East winds 15 to 20 mph. Chance of rain
20 percent.
.SUNDAY...Partly cloudy with isolated showers. Highs around 94.
Chance of rain 20 percent.
.SUNDAY NIGHT...Breezy. Partly cloudy with isolated showers. Lows
around 80. Chance of rain 20 percent.
.MONDAY...Variably cloudy with scattered showers in the morning,
then partly cloudy with isolated showers in the afternoon. Highs
around 94. Chance of rain 30 percent.
.MONDAY NIGHT...Breezy. Partly cloudy. Lows around 82.
.TUESDAY...Breezy. Partly cloudy with isolated showers in the
morning, then variably cloudy with scattered showers in the
afternoon. Highs around 94. Chance of rain 30 percent.
.TUESDAY NIGHT...Breezy. Variably cloudy with scattered showers.
Lows around 80. Chance of rain 30 percent.
.WEDNESDAY...Breezy. Partly cloudy with isolated showers. Highs
around 94. Chance of rain 20 percent.
.WEDNESDAY NIGHT...Breezy. Partly cloudy with isolated showers.
Lows around 82. Chance of rain 20 percent.
.THURSDAY...Breezy. Partly cloudy with isolated showers in the
morning, then variably cloudy with scattered showers in the
afternoon. Highs around 94. Chance of rain 40 percent.

$$