198
FPCA52 TJSJ 201843
ZFPPR

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

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Partly cloudy with isolated showers. Lows around 83.
Southeast winds 5 to 10 mph. Chance of rain 20 percent.
.MONDAY...Partly cloudy in the morning, then becoming mostly
cloudy. Scattered showers. Isolated thunderstorms in the
afternoon. Highs around 92. Temperature falling in the afternoon.
Southeast winds 10 to 15 mph. Chance of rain 50 percent.
.MONDAY NIGHT...Partly cloudy with scattered showers. Lows around
83. Southeast winds 5 to 10 mph. Chance of rain 50 percent.
.TUESDAY...Variably cloudy with scattered showers in the morning,
then mostly cloudy with numerous showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. East winds 10 to 15 mph. Chance of rain
60 percent.
.TUESDAY NIGHT...Variably cloudy with scattered showers. Isolated
thunderstorms after midnight. Lows around 83. Southeast winds
5 to 10 mph. Chance of rain 50 percent.
.WEDNESDAY...Variably cloudy with scattered showers in the
morning, then partly cloudy with isolated showers in the
afternoon. Highs around 92. Temperature falling in the afternoon.
Chance of rain 50 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain 20 percent.
.THURSDAY...Variably cloudy in the morning, then becoming mostly
cloudy. Scattered showers. Isolated thunderstorms in the
afternoon. Highs around 92. Temperature falling in the afternoon.
Chance of rain 50 percent.
.THURSDAY NIGHT...Variably cloudy with scattered showers with
isolated thunderstorms. Lows around 83. Chance of rain
40 percent.
.FRIDAY...Variably cloudy with scattered showers with isolated
thunderstorms. Highs around 92. Temperature falling in the
afternoon. Chance of rain 50 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. Chance of rain 20 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 92. Temperature falling in the afternoon. Chance of
rain 30 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain less than 20 percent.
.SUNDAY...Variably cloudy with scattered showers in the morning,
then partly cloudy with isolated showers in the afternoon. Highs
around 92. Temperature falling in the afternoon. Chance of rain
40 percent.

$$

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

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Variably cloudy with scattered showers. Isolated
thunderstorms after midnight. Lows around 83. Southeast winds
5 to 10 mph. Chance of rain 50 percent.
.MONDAY...Variably cloudy with scattered showers with isolated
thunderstorms. Highs around 92. Temperature falling in the
afternoon. Southeast winds 10 to 15 mph. Chance of rain
50 percent.
.MONDAY NIGHT...Variably cloudy with scattered showers in the
evening, then mostly cloudy with numerous showers after midnight.
Lows around 83. Southeast winds 5 to 10 mph. Chance of rain
60 percent.
.TUESDAY...Mostly cloudy with scattered showers. Isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. East winds 10 to 15 mph. Chance of rain
50 percent.
.TUESDAY NIGHT...Mostly cloudy with scattered showers with
isolated thunderstorms. Lows around 83. East winds 10 to 15 mph.
Chance of rain 50 percent.
.WEDNESDAY...Mostly cloudy with scattered showers in the morning,
then partly cloudy with isolated showers in the afternoon. Highs
around 92. Temperature falling in the afternoon. Chance of rain
50 percent.
.WEDNESDAY NIGHT...Variably cloudy with scattered showers. Lows
around 83. Chance of rain 30 percent.
.THURSDAY...Variably cloudy with scattered showers with isolated
thunderstorms. Highs around 92. Temperature falling in the
afternoon. Chance of rain 50 percent.
.THURSDAY NIGHT...Mostly cloudy with scattered showers with
isolated thunderstorms. Lows around 83. Chance of rain
50 percent.
.FRIDAY...Mostly cloudy with scattered showers with isolated
thunderstorms. Highs around 92. Temperature falling in the
afternoon. Chance of rain 50 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. Chance of rain 20 percent.
.SATURDAY...Variably cloudy with scattered showers. Highs around
92. Temperature falling in the afternoon. Chance of rain
30 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain less than 20 percent.
.SUNDAY...Mostly cloudy in the morning, then becoming variably
cloudy. Scattered showers. Highs around 92. Temperature falling
in the afternoon. Chance of rain 50 percent.

$$

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

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Partly cloudy with isolated showers. Lows around 83.
East winds 5 to 10 mph. 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 92. Temperature falling in the afternoon. Southeast winds
10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
.MONDAY NIGHT...Variably cloudy with scattered showers in the
evening, then mostly cloudy with numerous showers after midnight.
Lows around 83. East winds 5 to 10 mph. Chance of rain
60 percent.
.TUESDAY...Variably cloudy with scattered showers. Highs around
92. Temperature falling in the afternoon. East winds 10 to 15 mph
with gusts up to 25 mph. Chance of rain 50 percent.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
variably cloudy. Isolated thunderstorms in the evening. Scattered
showers. Lows around 83. East winds 5 to 10 mph. Chance of rain
50 percent.
.WEDNESDAY...Variably cloudy with scattered showers in the
morning, then partly cloudy with isolated showers in the
afternoon. Highs around 92. Temperature falling in the afternoon.
Chance of rain 50 percent.
.WEDNESDAY NIGHT...Variably cloudy with scattered showers. Lows
around 83. Chance of rain 30 percent.
.THURSDAY...Variably cloudy with scattered showers with isolated
thunderstorms. Highs around 92. Chance of rain 40 percent.
.THURSDAY NIGHT...Variably cloudy with scattered showers with
isolated thunderstorms. Lows around 83. Chance of rain
50 percent.
.FRIDAY...Variably cloudy in the morning, then becoming mostly
cloudy. Scattered showers with isolated thunderstorms. Highs
around 92. Temperature falling in the afternoon. Chance of rain
50 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. Chance of rain 20 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 92. Temperature falling in the afternoon. Chance of
rain 30 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain less than 20 percent.
.SUNDAY...Variably cloudy with scattered showers in the morning,
then partly cloudy with isolated showers in the afternoon. Highs
around 92. Temperature falling in the afternoon. Chance of rain
50 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 Sun Sep 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Partly cloudy with isolated showers. Lows around 77.
Southeast winds around 5 mph. Chance of rain 20 percent.
.MONDAY...Partly cloudy in the morning, then becoming variably
cloudy. Scattered showers. Highs around 92. Temperature falling
in the afternoon. Southeast winds 5 to 10 mph. Chance of rain
50 percent.
.MONDAY NIGHT...Variably cloudy with scattered showers. Lows
around 77. Southeast winds 5 to 10 mph. Chance of rain
50 percent.
.TUESDAY...Variably cloudy in the morning, then becoming mostly
cloudy. Scattered showers. Isolated thunderstorms in the
afternoon. Highs around 92. Temperature falling in the afternoon.
Southeast winds 5 to 10 mph. Chance of rain 50 percent.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
variably cloudy. Isolated thunderstorms in the evening. Scattered
showers. Lows around 77. East winds 5 to 10 mph. Chance of rain
50 percent.
.WEDNESDAY...Variably cloudy with scattered showers in the
morning, then partly cloudy with isolated showers in the
afternoon. Highs around 92. 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...Variably cloudy with scattered showers with isolated
thunderstorms. Highs around 92. Temperature falling in the
afternoon. Chance of rain 50 percent.
.THURSDAY NIGHT...Variably cloudy with scattered showers with
isolated thunderstorms. Lows around 77. Chance of rain
40 percent.
.FRIDAY...Variably cloudy in the morning, then becoming mostly
cloudy. Scattered showers with isolated thunderstorms. Highs
around 92. Temperature falling in the afternoon. Chance of rain
50 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
78. Chance of rain 20 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 92. Temperature falling in the afternoon. Chance of
rain 40 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 77. Chance of rain less than 20 percent.
.SUNDAY...Variably cloudy with scattered showers in the morning,
then partly cloudy with isolated showers in the afternoon. Highs
around 92. Temperature falling in the afternoon. Chance of rain
50 percent.

$$

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

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Variably cloudy with numerous showers with isolated
thunderstorms this evening, then partly cloudy with isolated
showers after midnight. Lows around 83. Southeast winds 5 to
10 mph. Chance of rain 70 percent.
.MONDAY...Partly cloudy with isolated showers in the morning,
then cloudy with showers with isolated thunderstorms in the
afternoon. Highs around 92. East winds 5 to 10 mph. Gusts up to
25 mph in the afternoon. Chance of rain 90 percent.
.MONDAY NIGHT...Partly cloudy with scattered showers in the
evening, then mostly clear with isolated showers after midnight.
Lows around 83. Southeast winds 5 to 10 mph. Chance of rain
50 percent.
.TUESDAY...Partly cloudy with isolated showers in the morning,
then mostly cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. East winds 10 to 15 mph. Chance of rain
50 percent.
.TUESDAY NIGHT...Variably cloudy with scattered showers with
isolated thunderstorms in the evening, then partly cloudy with
isolated showers after midnight. Lows around 83. Southeast winds
5 to 10 mph. Chance of rain 50 percent.
.WEDNESDAY...Partly cloudy with isolated showers. Highs around
92. Temperature falling in the afternoon. Chance of rain
20 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain 20 percent.
.THURSDAY...Partly cloudy with isolated showers in the morning,
then mostly cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. Chance of rain 50 percent.
.THURSDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain 20 percent.
.FRIDAY...Partly cloudy with isolated showers in the morning,
then mostly cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. Chance of rain 50 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. Chance of rain less than 20 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 92. Temperature falling in the afternoon. Chance of
rain 50 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain less than 20 percent.
.SUNDAY...Partly cloudy with isolated showers. Highs around 92.
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 Sun Sep 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Partly cloudy. Isolated showers this evening. Lows
around 76. Southeast winds around 5 mph. Chance of rain
20 percent.
.MONDAY...Partly cloudy with isolated showers in the morning,
then mostly cloudy with numerous showers with isolated
thunderstorms in the afternoon. Highs around 91. Temperature
falling in the afternoon. Southeast winds 5 to 10 mph with gusts
up to 20 mph. Chance of rain 70 percent.
.MONDAY NIGHT...Partly cloudy. Scattered showers, mainly in the
evening. Lows around 76. Southeast winds around 5 mph. Chance of
rain 50 percent.
.TUESDAY...Partly cloudy with isolated showers in the morning,
then mostly cloudy with numerous showers with isolated
thunderstorms in the afternoon. Highs around 91. Temperature
falling in the afternoon. Southeast winds 5 to 10 mph with gusts
up to 20 mph. Chance of rain 70 percent.
.TUESDAY NIGHT...Variably cloudy with scattered showers with
isolated thunderstorms in the evening, then partly cloudy with
isolated showers after midnight. Lows around 76. East winds
around 5 mph. Chance of rain 50 percent.
.WEDNESDAY...Variably cloudy with scattered showers. Isolated
thunderstorms in the afternoon. Highs around 91. Temperature
falling in the afternoon. Chance of rain 50 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 76. Chance of rain 20 percent.
.THURSDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. Chance of rain 50 percent.
.THURSDAY NIGHT...Partly cloudy with isolated showers. Lows
around 76. Chance of rain 20 percent.
.FRIDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. Chance of rain 50 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
77. Chance of rain 20 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 92. Temperature falling in the afternoon. Chance of
rain 50 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 76. Chance of rain less than 20 percent.
.SUNDAY...Partly cloudy with isolated showers. Highs around 91.
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 Sun Sep 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Partly cloudy with isolated showers. Lows around 83.
East winds 5 to 10 mph. Chance of rain 20 percent.
.MONDAY...Partly cloudy. Isolated showers in the morning, then
scattered showers with isolated thunderstorms in the afternoon.
Highs around 92. Temperature falling in the afternoon. Southeast
winds 10 to 15 mph with gusts up to 25 mph. Chance of rain
50 percent.
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. East winds 5 to 10 mph. Chance of rain 20 percent.
.TUESDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. Southeast winds 5 to 10 mph with gusts
up to 25 mph. Chance of rain 50 percent.
.TUESDAY NIGHT...Variably cloudy with scattered showers in the
evening, then partly cloudy with isolated showers after midnight.
Lows around 83. East winds 5 to 10 mph. Chance of rain
50 percent.
.WEDNESDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Chance of rain
40 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain 20 percent.
.THURSDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Chance of rain
50 percent.
.THURSDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain 20 percent.
.FRIDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Chance of rain
50 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. Chance of rain less than 20 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then mostly cloudy with scattered showers in the afternoon. Highs
around 92. Temperature falling in the afternoon. Chance of rain
50 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain less than 20 percent.
.SUNDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 92. Chance of rain 50 percent.

$$

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

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Mostly cloudy with numerous showers with isolated
thunderstorms this evening, then partly cloudy after midnight.
Lows around 83. Southeast winds around 5 mph. Chance of rain
70 percent.
.MONDAY...Partly cloudy in the morning, then cloudy with numerous
showers with isolated thunderstorms in the afternoon. Highs
around 92. Temperature falling in the afternoon. East winds 5 to
10 mph. Chance of rain 70 percent.
.MONDAY NIGHT...Partly cloudy with numerous showers with isolated
thunderstorms in the evening, then clear after midnight. Lows
around 83. Southeast winds around 5 mph. Chance of rain
70 percent.
.TUESDAY...Partly cloudy in the morning, then variably cloudy
with scattered showers with isolated thunderstorms in the
afternoon. Highs around 92. East winds 5 to 10 mph. Chance of
rain 50 percent.
.TUESDAY NIGHT...Variably cloudy with scattered showers with
isolated thunderstorms in the evening, then partly cloudy after
midnight. Lows around 83. East winds 5 to 10 mph. 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 92. Chance of rain 40 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain less than 20 percent.
.THURSDAY...Partly cloudy with isolated showers in the morning,
then cloudy with numerous showers with isolated thunderstorms in
the afternoon. Highs around 92. Temperature falling in the
afternoon. Chance of rain 70 percent.
.THURSDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain less than 20 percent.
.FRIDAY...Sunny in the morning, then mostly cloudy with numerous
showers with isolated thunderstorms in the afternoon. Highs
around 92. Temperature falling in the afternoon. Chance of rain
70 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. Chance of rain 20 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 92. Temperature falling in the afternoon. Chance of
rain 50 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. 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 92. 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 Sun Sep 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Variably cloudy with scattered showers with isolated
thunderstorms this evening, then partly cloudy after midnight.
Lows around 77. Southeast winds around 5 mph. Chance of rain
50 percent.
.MONDAY...Partly cloudy in the morning, then cloudy with showers
with isolated thunderstorms in the afternoon. Highs around 92.
Temperature falling in the afternoon. Southeast winds around
5 mph with gusts up to 25 mph. Chance of rain 90 percent.
.MONDAY NIGHT...Partly cloudy with scattered showers in the
evening, then clear with isolated showers after midnight. Lows
around 76. Southeast winds around 5 mph. Chance of rain
50 percent.
.TUESDAY...Partly cloudy in the morning, then cloudy with showers
with isolated thunderstorms in the afternoon. Highs around 92.
Temperature falling in the afternoon. East winds 5 to 10 mph with
gusts up to 25 mph. Chance of rain 90 percent.
.TUESDAY NIGHT...Mostly cloudy with numerous showers with
isolated thunderstorms in the evening, then partly cloudy after
midnight. Lows around 76. East winds around 5 mph. Chance of rain
60 percent.
.WEDNESDAY...Partly cloudy with isolated showers in the morning,
then mostly cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. Chance of rain 50 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 76. Chance of rain less than 20 percent.
.THURSDAY...Partly cloudy with isolated showers in the morning,
then cloudy with numerous showers with isolated thunderstorms in
the afternoon. Highs around 92. Temperature falling in the
afternoon. Chance of rain 70 percent.
.THURSDAY NIGHT...Partly cloudy with isolated showers. Lows
around 77. Chance of rain 20 percent.
.FRIDAY...Partly cloudy with isolated showers in the morning,
then mostly cloudy with numerous showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. Chance of rain 70 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
77. Chance of rain 20 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then mostly cloudy with numerous showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. Chance of rain 60 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 77. Chance of rain less than 20 percent.
.SUNDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 92. 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 Sun Sep 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Mostly cloudy with numerous showers with isolated
thunderstorms this evening, then partly cloudy after midnight.
Lows around 83. East winds 5 to 10 mph. Chance of rain
70 percent.
.MONDAY...Partly cloudy in the morning, then mostly cloudy with
numerous showers with isolated thunderstorms in the afternoon.
Highs around 92. East winds 5 to 10 mph with gusts up to 20 mph.
Chance of rain 70 percent.
.MONDAY NIGHT...Partly cloudy with numerous showers in the
evening, then clear with isolated showers after midnight. Lows
around 83. East winds 5 to 10 mph. Gusts up to 20 mph in the
evening. Chance of rain 70 percent.
.TUESDAY...Partly cloudy with isolated showers in the morning,
then cloudy with showers with isolated thunderstorms in the
afternoon. Highs around 92. East winds 5 to 10 mph. Chance of
rain 90 percent.
.TUESDAY NIGHT...Mostly cloudy with numerous showers with
isolated thunderstorms in the evening, then partly cloudy after
midnight. Lows around 83. East winds 5 to 10 mph with gusts up to
20 mph. Chance of rain 60 percent.
.WEDNESDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Chance of rain
50 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain 20 percent.
.THURSDAY...Mostly sunny in the morning, then cloudy with
numerous showers with isolated thunderstorms in the afternoon.
Highs around 92. Chance of rain 70 percent.
.THURSDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain 20 percent.
.FRIDAY...Mostly sunny with isolated showers in the morning, then
mostly cloudy with numerous showers with isolated thunderstorms
in the afternoon. Highs around 92. Temperature falling in the
afternoon. Chance of rain 70 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. Chance of rain 20 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then mostly cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. Chance of rain 50 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. 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 92. Chance of rain 50 percent.

$$

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

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Partly cloudy with isolated showers. Lows around 83.
East winds 5 to 10 mph with gusts up to 20 mph. Chance of rain
20 percent.
.MONDAY...Partly cloudy. Isolated showers in the morning, then
scattered showers in the afternoon. Highs around 92. Temperature
falling in the afternoon. Southeast winds 10 to 15 mph with gusts
up to 30 mph. Chance of rain 50 percent.
.MONDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. East winds 10 to 15 mph with gusts up to 25 mph. Chance of
rain 20 percent.
.TUESDAY...Partly cloudy with isolated showers in the morning,
then mostly cloudy with numerous showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. Southeast winds 10 to 15 mph with gusts
up to 30 mph. Chance of rain 70 percent.
.TUESDAY NIGHT...Variably cloudy with scattered showers with
isolated thunderstorms in the evening, then partly cloudy with
isolated showers after midnight. Lows around 83. East winds 5 to
10 mph with gusts up to 20 mph. Chance of rain 50 percent.
.WEDNESDAY...Partly cloudy with isolated showers. Highs around
92. Temperature falling in the afternoon. Chance of rain
20 percent.
.WEDNESDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain 20 percent.
.THURSDAY...Partly cloudy. Isolated showers in the morning, then
isolated showers and thunderstorms in the afternoon. Highs around
92. Temperature falling in the afternoon. Chance of rain
20 percent.
.THURSDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain 20 percent.
.FRIDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers with isolated
thunderstorms in the afternoon. Highs around 92. Temperature
falling in the afternoon. Chance of rain 50 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. Chance of rain 20 percent.
.SATURDAY...Partly cloudy with isolated showers in the morning,
then variably cloudy with scattered showers in the afternoon.
Highs around 92. Temperature falling in the afternoon. Chance of
rain 50 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. 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 92. Temperature falling in the afternoon. Chance of
rain 50 percent.

$$

PRZ012-210800-
Culebra-
243 PM AST Sun Sep 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Variably cloudy with scattered showers this evening,
then mostly cloudy with numerous showers with isolated
thunderstorms after midnight. Lows around 83. Southeast winds
around 10 mph. Chance of rain 60 percent.
.MONDAY...Partly cloudy in the morning, then becoming variably
cloudy. Scattered showers. Highs around 92. Southeast winds 10 to
15 mph. Chance of rain 40 percent.
.MONDAY NIGHT...Partly cloudy in the evening, then becoming
variably cloudy. Scattered showers. Lows around 83. East winds
10 to 15 mph. Chance of rain 50 percent.
.TUESDAY...Variably cloudy with scattered showers. Isolated
thunderstorms in the afternoon. Highs around 92. East winds 10 to
15 mph. Chance of rain 50 percent.
.TUESDAY NIGHT...Variably cloudy with scattered showers. Lows
around 83. East winds around 15 mph with gusts up to 25 mph.
Chance of rain 40 percent.
.WEDNESDAY...Variably cloudy with scattered showers in the
morning, then partly cloudy with isolated showers in the
afternoon. Highs around 92. Chance of rain 40 percent.
.WEDNESDAY NIGHT...Variably cloudy with scattered showers. Lows
around 83. Chance of rain 30 percent.
.THURSDAY...Variably cloudy with scattered showers with isolated
thunderstorms. Highs around 92. Chance of rain 40 percent.
.THURSDAY NIGHT...Mostly cloudy with scattered showers with
isolated thunderstorms. Lows around 81. Chance of rain
50 percent.
.FRIDAY...Mostly cloudy in the morning, then becoming variably
cloudy. Isolated thunderstorms in the morning. Scattered showers.
Highs around 92. Chance of rain 50 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
81. Chance of rain 20 percent.
.SATURDAY...Variably cloudy with scattered showers in the
morning, then partly cloudy with isolated showers in the
afternoon. Highs around 92. Chance of rain 30 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 81. Chance of rain 20 percent.
.SUNDAY...Variably cloudy with scattered showers in the morning,
then partly cloudy with isolated showers in the afternoon. Highs
around 92. Chance of rain 40 percent.

$$

PRZ013-210800-
Vieques-
243 PM AST Sun Sep 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Partly cloudy with isolated showers this evening, then
variably cloudy with scattered showers with isolated
thunderstorms after midnight. Lows around 83. Southeast winds
5 to 10 mph. Chance of rain 50 percent.
.MONDAY...Variably cloudy with scattered showers. Highs around
92. Temperature falling in the afternoon. Southeast winds around
10 mph. Chance of rain 40 percent.
.MONDAY NIGHT...Variably cloudy in the evening, then becoming
mostly cloudy. Scattered showers. Lows around 83. East winds
10 to 15 mph. Chance of rain 50 percent.
.TUESDAY...Variably cloudy with scattered showers. Highs around
92. Temperature falling in the afternoon. East winds 10 to
15 mph. Chance of rain 40 percent.
.TUESDAY NIGHT...Mostly cloudy in the evening, then becoming
variably cloudy. Isolated thunderstorms in the evening. Scattered
showers. Lows around 83. East winds 10 to 15 mph with gusts up to
25 mph. Chance of rain 50 percent.
.WEDNESDAY...Variably cloudy with scattered showers in the
morning, then partly cloudy with isolated showers in the
afternoon. Highs around 92. Temperature falling in the afternoon.
Chance of rain 50 percent.
.WEDNESDAY NIGHT...Variably cloudy with scattered showers. Lows
around 83. Chance of rain 30 percent.
.THURSDAY...Variably cloudy with scattered showers with isolated
thunderstorms. Highs around 92. Temperature falling in the
afternoon. Chance of rain 40 percent.
.THURSDAY NIGHT...Mostly cloudy with scattered showers with
isolated thunderstorms. Lows around 83. Chance of rain
50 percent.
.FRIDAY...Mostly cloudy in the morning, then becoming variably
cloudy. Scattered showers with isolated thunderstorms. Highs
around 92. Temperature falling in the afternoon. Chance of rain
50 percent.
.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. Chance of rain 20 percent.
.SATURDAY...Variably cloudy with scattered showers in the
morning, then partly cloudy with isolated showers in the
afternoon. Highs around 92. Temperature falling in the afternoon.
Chance of rain 30 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain less than 20 percent.
.SUNDAY...Variably cloudy with scattered showers. Highs around
92. Temperature falling in the afternoon. Chance of rain
40 percent.

$$

VIZ001-210800-
St Thomas, St John and Adjacent Islands-
243 PM AST Sun Sep 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Variably cloudy with scattered showers this evening,
then mostly cloudy with numerous showers with isolated
thunderstorms after midnight. Lows around 83. Southeast winds
around 10 mph. Chance of rain 60 percent.
.MONDAY...Partly cloudy in the morning, then becoming variably
cloudy. Scattered showers. Highs around 92. Southeast winds 10 to
15 mph. Chance of rain 40 percent.
.MONDAY NIGHT...Partly cloudy in the evening, then becoming
variably cloudy. Scattered showers. Lows around 83. East winds
10 to 15 mph. Chance of rain 50 percent.
.TUESDAY...Variably cloudy with scattered showers. Highs around
92. East winds 10 to 15 mph. Chance of rain 40 percent.
.TUESDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. East winds around 15 mph. Chance of rain 20 percent.
.WEDNESDAY...Variably cloudy with scattered showers in the
morning, then partly cloudy with isolated showers in the
afternoon. Highs around 92. Chance of rain 30 percent.
.WEDNESDAY NIGHT...Variably cloudy with scattered showers. Lows
around 83. Chance of rain 30 percent.
.THURSDAY...Isolated thunderstorms in the morning. Variably
cloudy with scattered showers. Highs around 92. Chance of rain
40 percent.
.THURSDAY NIGHT...Mostly cloudy with scattered showers with
isolated thunderstorms. Lows around 83. Chance of rain
50 percent.
.FRIDAY...Mostly cloudy with scattered showers with isolated
thunderstorms in the morning, then partly cloudy with isolated
showers in the afternoon. Highs around 92. Chance of rain
50 percent.
.FRIDAY NIGHT...Variably cloudy with scattered showers. Lows
around 83. Chance of rain 30 percent.
.SATURDAY...Partly cloudy with isolated showers. Highs around 92.
Chance of rain 20 percent.
.SATURDAY NIGHT...Partly cloudy with isolated showers. Lows
around 83. Chance of rain 20 percent.
.SUNDAY...Variably cloudy with scattered showers in the morning,
then partly cloudy with isolated showers in the afternoon. Highs
around 92. Chance of rain 40 percent.

$$

VIZ002-210800-
St Croix-
243 PM AST Sun Sep 20 2026

...HEAT ADVISORY IN EFFECT UNTIL 3 PM AST THIS AFTERNOON...

.TONIGHT...Partly cloudy with isolated showers this evening, then
mostly cloudy with numerous showers with isolated thunderstorms
after midnight. Lows around 83. East winds 5 to 10 mph. Chance of
rain 60 percent.
.MONDAY...Partly cloudy in the morning, then becoming variably
cloudy. Scattered showers. Highs around 92. Southeast winds 10 to
15 mph. Chance of rain 50 percent.
.MONDAY NIGHT...Variably cloudy with scattered showers. Lows
around 83. East winds 10 to 15 mph. Chance of rain 30 percent.
.TUESDAY...Variably cloudy with scattered showers. Highs around
92. Temperature falling in the afternoon. East winds 10 to
15 mph. Chance of rain 40 percent.
.TUESDAY NIGHT...Partly cloudy with isolated showers. Lows around
83. East winds 10 to 15 mph. Chance of rain 20 percent.
.WEDNESDAY...Variably cloudy with scattered showers. Highs around
92. Chance of rain 30 percent.
.WEDNESDAY NIGHT...Variably cloudy with scattered showers. Lows
around 83. Chance of rain 30 percent.
.THURSDAY...Isolated thunderstorms in the morning. Variably
cloudy with scattered showers. Highs around 92. Chance of rain
40 percent.
.THURSDAY NIGHT...Mostly cloudy with scattered showers with
isolated thunderstorms. Lows around 83. Chance of rain
50 percent.
.FRIDAY...Variably cloudy with scattered showers with isolated
thunderstorms in the morning, then partly cloudy with isolated
showers in the afternoon. Highs around 92. Chance of rain
40 percent.
.FRIDAY NIGHT...Variably cloudy with scattered showers. Lows
around 83. Chance of rain 30 percent.
.SATURDAY...Variably cloudy with scattered showers in the
morning, then partly cloudy with isolated showers in the
afternoon. Highs around 92. Chance of rain 30 percent.
.SATURDAY NIGHT...Variably cloudy with scattered showers. Lows
around 83. Chance of rain 30 percent.
.SUNDAY...Variably cloudy with scattered showers in the morning,
then partly cloudy with isolated showers in the afternoon. Highs
around 92. Chance of rain 30 percent.

$$