Area Forecast Matrices
Issued by NWS San Juan, PR

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FOCA52 TJSJ 290631
AFMSJU

Area Forecast Matrices
National Weather Service San Juan PR
231 AM AST Tue Sep 29 2026

PRZ001-292000-
San Juan and Vicinity-
Including the cities of Bayamon, Carolina, Catano, Guaynabo,
San Juan, Toa Alta, Toa Baja, and Trujillo Alto
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                81 87 91    72 76 80    81 87 91    71 75 80    82 89 91
Temp          77 83 86 87 82 79 78 76 76 83 87 87 82 79 77 76 75 83 88 89 82 79
Dewpt         75 77 78 77 77 76 76 75 75 76 77 76 76 75 76 75 75 76 77 77 76 76
RH            94 82 77 72 85 91 94 97 97 80 72 70 82 88 97 97100 80 70 68 82 91
Wind dir      SE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd       4  6 12 13 12  8  8  6  8 11 14 16 13  9  9  6  6  8 13 14 12  6
Wind gust                                                              25
Clouds        SC B1 SC B1 SC SC FW SC B1 B1 SC B1 SC SC SC B1 B1 SC SC B1 B1 SC
PoP 12hr                     40          40          40          30          50
QPF 12hr              0.13-0.21   0.04-0.10   0.12-0.22   0.07-0.20   0.06-0.35
Snow 12hr                    MM          MM          MM
Rain shwrs    IS SC SC SC IS IS IS IS SC SC IS SC IS IS IS SC SC IS IS SC SC IS
Tstms                  IS
Heat index       92 99 99 91 83          90 97 98 89 81          91 99100 89 81
Max heat         97   109   107    88    95   107   105    89    96   110   108


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          74    88      75    88      75    89      75    90
Temp          75 82 88 79   76 82 88 79   76 83 89 79   76 83 90 80
Dewpt         75 76 76 75   75 76 77 75   75 76 77 76   75 77 77 76
PWind dir         E     E      SE     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    SC SC B1 B2   B1 B1 B1 B1   SC SC SC SC   FW SC SC SC
PoP 12hr         20    60      40    50      20    20      30    30
Rain shwrs    IS IS IS SC   SC SC SC SC   IS IS IS IS   IS SC SC IS
Tstms               IS IS            IS

$$
PRZ002-292000-
Northeast-
Including the cities of Ceiba, Canovanas, Fajardo, Humacao,
Loiza, Luquillo, Naguabo, and Rio Grande
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                73 85 90    68 76 80    73 85 90    65 74 80    74 86 91
Temp          77 82 84 85 81 79 77 76 76 81 84 85 80 77 76 75 74 81 85 86 80 77
Dewpt         74 75 75 75 75 74 74 74 74 75 74 74 74 74 74 74 74 75 75 74 75 74
RH            90 79 74 72 82 85 90 94 94 82 72 70 82 90 94 97100 82 72 68 85 90
Wind dir       E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd       6  8 11 12 12 10 10 10 10 12 14 14 13 11 10  9  9 10 12 12 10  9
Wind gust                    21 20 21                21 23 19                19
Clouds        SC B1 B1 B1 B1 SC SC SC SC B1 SC B1 SC B1 B1 B1 B1 B1 B1 B2 B2 B1
PoP 12hr                     50          30          40          40          50
QPF 12hr              0.13-0.23        0.07        0.20        0.20   0.18-0.37
Snow 12hr                    MM          MM          MM
Rain shwrs    IS SC SC SC SC SC IS SC SC SC IS SC IS SC SC SC SC SC SC SC SC SC
Tstms                  IS IS
Heat index       88 93 93 87 82          87 92 92 85             86 93 94 85
Max heat         94   101    99    88    93   100    98    89    93   102   100


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          73    86      74    86      74    87      74    88
Temp          74 80 86 77   75 81 86 78   75 81 87 78   75 82 88 79
Dewpt         74 74 74 74   73 74 74 74   74 75 74 74   74 75 74 74
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    B1 B1 B2 B2   B1 B1 B2 B2   SC SC B1 B1   SC SC SC SC
PoP 12hr         50    60      50    60      30    40      30    30
Rain shwrs    SC SC NM NM   SC SC NM NM   SC SC SC SC   IS SC SC IS
Tstms               IS IS         IS IS

$$
PRZ003-292000-
Southeast-
Including the cities of Arroyo, Guayama, Maunabo, Patillas,
Salinas, and Yabucoa
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                76 86 90    68 75 79    77 85 90    66 74 79    76 86 90
Temp          76 82 85 86 81 78 77 75 75 81 84 85 80 77 76 74 74 80 85 86 80 77
Dewpt         73 74 74 74 74 74 74 74 73 73 73 73 74 73 74 73 72 74 73 74 74 74
RH            90 77 70 68 79 88 90 97 94 77 70 67 82 87 94 97 93 82 67 68 82 90
Wind dir      NE NE  E  E  E NE NE NE NE  E  E  E  E NE NE  E  E  E  E  E  E  E
Wind spd       6  6 13 14 12  9  9  8  9 11 14 14 13  9  9  9  8 10 13 12 10  8
Wind gust           25 32 24             23 27 27 26 19 20       20 27 26 23
Clouds        SC FW SC SC SC SC FW SC SC SC SC B1 SC SC SC B1 B1 B1 B1 B1 B1 B1
PoP 12hr                     30          30          40          40          50
QPF 12hr              0.04-0.16   0.02-0.10   0.09-0.21   0.09-0.21   0.06-0.37
Snow 12hr                    MM          MM          MM
Rain shwrs    IS IS IS SC IS IS IS IS IS SC SC SC IS SC SC SC SC SC SC SC SC SC
Heat index       87 92 93 86 81          86 91 92 85             85 91 93 84
Max heat         96   103   102    87    94   102   101    87    93   103   101


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          73    85      73    86      74    86      74    88
Temp          74 80 85 77   74 80 86 77   75 81 86 78   75 82 88 78
Dewpt         73 74 73 73   72 74 73 73   73 73 71 72   73 74 73 74
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      GN    GN      LT    GN
Avg clouds    B1 B1 B1 B1   B1 B1 B1 B1   SC SC SC SC   SC SC SC SC
PoP 12hr         50    40      50    50      30    20      30    30
Rain shwrs    SC SC SC SC   SC SC SC SC   SC SC IS IS   IS SC SC IS

$$
PRZ004-292000-
Eastern Interior-
Including the cities of Aguas Buenas, Caguas, Cayey, Cidra,
Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                76 84 89    68 72 76    76 84 89    66 72 75    76 85 89
Temp          74 80 83 84 79 76 74 73 73 79 83 84 79 75 73 72 72 79 84 85 78 75
Dewpt         72 74 74 74 74 73 73 72 72 74 73 73 73 73 73 72 71 74 74 73 74 73
RH            93 82 74 72 85 90 97 97 97 85 72 70 82 94100100 97 85 72 67 88 94
Wind dir       E  E  E  E  E NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd       3  4 10 12 10  4  4  3  5  9 12 12 12  5  5  4  4  8 11 11  9  4
Clouds        SC SC SC B1 B1 SC FW SC SC SC SC B1 SC SC SC B1 B1 SC SC B1 B1 B1
PoP 12hr                     50          30          40          30          40
QPF 12hr              0.09-0.22        0.04   0.11-0.20   0.08-0.21   0.07-0.37
Snow 12hr                    MM          MM          MM
Rain shwrs    IS IS SC SC SC IS IS IS IS SC IS SC IS SC SC SC SC SC SC SC SC SC
Tstms                  IS IS
Heat index       84 90 91 82             83 89 90 81             82 91 91 80
Max heat         94   102   100          93   100    98          91   102   100


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          71    85      71    85      71    85      71    86
Temp          72 78 85 75   72 78 85 75   72 79 85 76   72 80 86 76
Dewpt         71 73 73 73   71 74 73 73   72 74 73 73   72 74 73 73
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    B1 B1 B1 B1   B1 B1 B1 B1   SC SC SC SC   SC SC SC SC
PoP 12hr         40    50      40    50      30    20      30    30
Rain shwrs    SC SC SC SC   SC SC SC SC   SC SC IS IS   IS SC SC IS
Tstms               IS IS

$$
PRZ005-292000-
North Central-
Including the cities of Arecibo, Barceloneta, Dorado, Florida,
Manati, Vega Alta, and Vega Baja
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                82 87 90    71 74 79    82 87 90    71 74 79    84 88 91
Temp          75 82 86 86 81 78 76 75 74 81 86 87 81 78 76 75 74 82 87 88 81 77
Dewpt         74 77 78 77 76 76 75 74 74 76 77 76 75 75 75 74 73 76 77 77 76 75
RH            97 85 77 75 85 94 97 97100 85 75 70 82 91 97 97 97 82 72 70 85 94
Wind dir      SE  E NE NE NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd       5  5 12 14 14 11 10  6  8  9 14 18 17 11  9  5  5  6 12 16 14 10
Wind gust              25 27 21             25 31 29 21                29 27
Clouds        FW SC SC SC SC SC FW FW B1 B1 FW B1 SC SC SC SC SC FW FW B1 B1 FW
PoP 12hr                     30          40          30          10          40
QPF 12hr              0.07-0.16   0.03-0.10   0.11-0.33   0.02-0.11   0.05-0.77
Snow 12hr                    MM          MM          MM
Rain shwrs    IS SC IS SC IS IS    IS SC SC    SC IS IS IS IS IS       SC SC
Tstms                                                                  IS IS
Heat index       89 98 98 88             88 97 97 87             89 99100 87
Max heat         97   109   107    87    95   107   105    87    96   110   107


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          73    88      73    87      73    88      73    89
Temp          74 81 88 77   74 81 87 78   74 82 88 78   74 82 89 79
Dewpt         74 75 77 75   74 76 77 75   74 76 77 75   74 77 77 76
PWind dir         E     E      SE     E      SE     E      SE     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    FW FW SC B1   FW FW SC B1   FW FW SC SC   FW FW SC SC
PoP 12hr          5    60       5    70       5    40      20    20
Rain shwrs          IS NM   IS IS NM NM   IS IS SC SC      IS IS IS
Tstms               IS IS         IS IS

$$
PRZ006-292000-
Central Interior-
Including the cities of Aibonito, Barranquitas, Ciales, Coamo,
Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                73 82 89    64 71 75    73 82 90    62 71 75    74 83 90
Temp          72 78 81 82 77 74 73 72 71 77 81 82 77 74 72 71 71 77 82 83 76 74
Dewpt         71 72 73 73 72 72 72 71 70 72 72 72 71 71 71 71 70 72 73 72 72 71
RH            97 82 77 74 85 93 97 97 97 85 74 72 82 90 97100 97 85 74 70 87 90
Wind dir       E  E  E  E NE NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd       3  4  9 10 10  5  4  3  4  6 10 12 11  5  5  4  3  5 10 10  8  5
Wind gust           24 31 21                26 27 24                27 25 20
Clouds        FW FW SC B1 B1 SC FW FW SC SC FW B1 SC SC SC SC SC FW FW B1 B1 SC
PoP 12hr                     50          10          30          20          40
QPF 12hr              0.08-0.82   0.01-0.06   0.08-0.24   0.02-0.12   0.06-0.78
Snow 12hr                    MM          MM          MM
Rain shwrs       IS IS SC SC IS    IS IS IS IS SC IS IS IS IS IS IS IS SC SC IS
Tstms                  IS                                              IS IS
Heat index       80 85 86                   85 86                   86 87
Max heat         93   103   101          91   100    98          92   104   101


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          69    82      70    82      70    82      70    84
Temp          70 77 82 74   71 77 82 74   71 77 82 74   71 78 84 75
Dewpt         70 72 72 71   70 72 72 71   71 72 72 71   71 73 72 72
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC SC B1   SC SC SC B1   FW FW SC B1   FW FW SC SC
PoP 12hr         10    50      10    60       5    50      20    20
Rain shwrs    IS IS IS SC   IS IS IS NM   IS IS SC SC      IS IS IS
Tstms               IS IS         IS IS

$$
PRZ007-292000-
Ponce and Vicinity-
Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas,
Ponce, and Santa Isabel
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                73 86 91    63 74 79    73 86 92    61 74 80    74 86 92
Temp          75 81 85 86 81 77 76 74 74 81 85 86 80 77 76 74 74 81 85 86 80 77
Dewpt         71 71 72 74 74 73 72 71 70 71 71 72 73 72 72 71 70 71 72 73 74 73
RH            87 72 65 68 79 87 87 90 87 72 63 63 79 85 87 90 87 72 65 65 82 87
Wind dir      NE  E  E  E  E NE NE NE NE  E  E SE  E  E NE NE NE  E  E SE SE  E
Wind spd       4  4 10 12 10  6  5  4  4  5 12 14 12  8  5  5  4  5 13 12  9  6
Wind gust           24 32 25                26 31 27 20             28 28 24
Clouds        FW FW FW B2 B1 SC FW FW FW FW FW B1 SC FW FW FW FW FW FW B1 B1 FW
PoP 12hr                     70          10          40           5          40
QPF 12hr              0.05-0.94        0.01   0.08-0.44   0.01-0.09   0.05-0.66
Snow 12hr                    MM          MM          MM
Rain shwrs    IS       NM SC IS       IS       SC IS IS IS IS IS IS IS SC SC IS
Tstms                  IS IS
Heat index       85 90 93 86             84 90 92 85             84 91 92 84
Max heat         92   103   103    87    92   102   101    88    91   103   100


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          73    86      73    86      74    86      74    87
Temp          74 80 86 77   74 80 86 77   74 81 86 77   74 81 87 78
Dewpt         70 71 73 73   71 71 73 73   70 72 71 70   70 71 73 73
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    FW FW SC SC   FW FW SC B1   FW FW SC SC   FW FW SC SC
PoP 12hr          5    40       5    50       5    40      10    20
Rain shwrs    IS IS IS SC   IS IS IS SC   IS IS SC SC      IS IS IS
Tstms                  IS            IS

$$
PRZ008-292000-
Northwest-
Including the cities of Aguadilla, Camuy, Hatillo, Isabela,
and Quebradillas
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                83 85 91    69 73 78    83 86 91    69 73 79    84 87 91
Temp          74 81 84 85 80 77 75 74 73 80 85 86 80 76 75 73 73 80 86 87 79 76
Dewpt         73 75 77 77 75 75 74 73 72 74 76 76 75 75 74 73 72 74 76 77 76 75
RH            97 82 80 77 85 94 97 97 97 82 75 72 85 97 97100 97 82 72 72 91 97
Wind dir       E  E  E NE NE  E  E  E  E  E  E NE  E  E  E  E  E  E  E  E  E  E
Wind spd       6  8 12 13 14 14 12  9  8 10 14 17 17 14 11  8  6  8 11 13 12 10
Wind gust              24 25 26 23 19          28 29 28 23             26 26
Clouds        FW SC FW SC SC SC FW FW SC SC FW B2 B1 FW FW FW FW FW FW B2 B2 SC
PoP 12hr                     20          30          50           5          60
QPF 12hr              0.06-0.17        0.02   0.19-0.56        0.01   0.30-0.80
Snow 12hr                    MM          MM          MM
Rain shwrs       IS IS IS IS IS       IS SC IS SC SC                   NM NM IS
Tstms                                          IS                      IS IS
Heat index       86 94 95 85             85 94 95 84             85 96 98 82
Max heat         93   106   104    85    92   106   104    86    91   108   104


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          71    86      71    85      72    86      72    87
Temp          72 80 86 76   73 79 85 76   73 80 86 76   73 81 87 77
Dewpt         72 74 77 75   72 74 76 75   73 74 76 75   73 74 77 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      LT    GN      LT    GN      GN    GN
Avg clouds    SC FW SC B2   SC FW SC B2   SC SC SC B1   SC SC SC SC
PoP 12hr         10    70       5    70      20    40       5    40
Rain shwrs    IS IS NM NM   IS IS NM NM   IS IS SC SC   IS IS SC SC
Tstms               IS IS         IS IS                       IS IS

$$
PRZ009-292000-
Western Interior-
Including the cities of Adjuntas, Lares, Las Marias, Maricao,
Sabana Grande, San Sebastian, and Utuado
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                73 83 90    67 71 75    73 83 90    65 70 75    74 84 91
Temp          72 78 82 83 78 74 73 72 71 78 82 83 77 74 72 71 70 78 83 84 77 74
Dewpt         69 71 73 74 72 72 72 71 70 71 73 73 72 72 71 70 69 71 73 74 72 72
RH            90 79 74 74 82 93 97 97 97 79 74 72 85 93 97 97 97 79 72 72 85 93
Wind dir       E  E  E  E NE NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd       3  4  6  6  8  6  5  3  4  4  8  9  9  6  5  4  3  4  6  5  4  4
Wind gust              24    18             25 28 19 17             26 26
Clouds        CL FW FW B2 B2 SC FW FW SC SC FW B2 B1 FW FW FW FW FW FW B2 B2 FW
PoP 12hr                     60          20          60           5          60
QPF 12hr              0.12-0.94        0.02   0.16-0.56        0.01   0.14-0.80
Snow 12hr                    MM          MM          MM
Rain shwrs       IS    NM NM IS       IS IS    NM SC                   NM NM IS
Tstms                  IS IS                   IS                      IS IS
Heat index       80 87 89                   86 88                   88 90
Max heat         90   106   106          90   105   104          90   107   104


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          69    83      69    83      70    83      70    85
Temp          70 77 83 74   71 77 83 74   71 77 83 74   71 78 84 75
Dewpt         70 72 74 72   70 71 73 72   70 71 74 72   70 72 74 72
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW SC B1   CL FW SC B1   FW FW SC B1   FW FW SC SC
PoP 12hr          5    70       5    70       5    50      10    30
Rain shwrs    IS IS NM NM         NM NM   IS IS SC SC   IS IS IS SC
Tstms               IS IS         IS IS                          IS

$$
PRZ010-292000-
Mayaguez and Vicinity-
Including the cities of Aguada, Anasco, Hormigueros, Mayaguez,
Moca, Rincon, and San German
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                75 88 91    68 73 79    75 88 91    66 73 80    75 88 91
Temp          75 82 87 88 82 78 76 74 74 82 86 88 81 77 75 74 73 82 87 88 80 77
Dewpt         72 75 77 77 77 76 75 73 72 74 76 77 77 75 74 73 72 75 77 77 77 75
RH            90 79 72 70 85 94 97 97 93 77 72 70 88 94 97 97 97 79 72 70 91 94
Wind dir       E  E  E  E NE NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd       5  6  6  5  8 11 10  6  6  8  6  8  9 11  9  6  5  6  5  5  4  6
Wind gust           17 18 18 27 23 21 18 19 19 21 21 24 24    18 17 18 18 16 17
Clouds        CL FW FW B1 B2 SC FW FW FW SC FW B2 B1 FW FW FW FW FW FW B2 B2 SC
PoP 12hr                     60          30          60           5          60
QPF 12hr              0.07-0.94   0.01-0.09   0.13-0.56   0.00-0.07   0.04-0.81
Snow 12hr                    MM          MM          MM
Rain shwrs       IS    NM NM SC          IS    NM SC                   NM NM IS
Tstms                  IS IS                   IS IS                   IS IS
Heat index       89 97100 89             88 97 99 88             88 99101 87
Max heat         95   110   108    87    94   109   107    88    94   110   107


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          72    88      72    88      73    89      73    90
Temp          73 81 88 77   73 81 88 77   74 82 89 78   74 82 90 78
Dewpt         73 75 77 75   73 74 77 75   73 74 77 75   73 75 77 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC SC SC B1   FW FW SC B1   SC SC SC B1   SC SC SC B1
PoP 12hr         20    70       5    70      20    50      10    50
Rain shwrs    IS IS NM NM   IS IS NM NM   IS IS SC SC   IS IS SC SC
Tstms               IS IS         IS IS                       IS IS

$$
PRZ011-292000-
Southwest-
Including the cities of Cabo Rojo, Guanica, and Lajas
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                84 89 90    71 74 79    84 89 90    71 74 79    85 90 91
Temp          75 83 88 89 82 78 76 74 74 82 87 89 83 79 76 75 74 83 89 90 82 78
Dewpt         73 73 73 76 76 76 74 73 72 73 73 75 76 75 73 73 72 73 74 75 75 75
RH            94 72 61 66 82 94 94 97 93 74 63 64 80 88 90 94 93 72 61 62 79 91
Wind dir      NE  E SE SE  E NE  E  E  E  E  E SE  E  E  E  E  E  E  E SE  E  E
Wind spd       4  3  9 12  9  8  5  5  5  6 12 16 11 12  9  6  6  6 14 16  9  8
Wind gust           20 28 19                28 33 25 28 20          31 31 20
Clouds        FW FW FW OV B2 SC FW FW FW FW FW B1 SC FW FW FW FW FW FW B1 B1 FW
PoP 12hr                     70          30          50           5          30
QPF 12hr              0.38-0.93        0.02   0.12-0.54        0.01   0.05-0.54
Snow 12hr                    MM          MM          MM
Rain shwrs    IS       NM SC SC                SC SC                   SC SC IS
Tstms                  IS IS
Heat index       89 95100 90             88 95 99 90 80          88 98100 88
Max heat         92   106   105    87    91   106   105    87    91   108   105


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          73    90      74    90      74    91      74    91
Temp          74 82 90 78   75 83 90 79   75 83 91 79   75 84 91 80
Dewpt         72 72 75 75   73 72 75 75   72 73 73 73   69 70 75 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    FW FW SC SC   CL FW SC SC   FW FW FW SC   FW FW SC SC
PoP 12hr         10    40       5    30       0    30      10    30
Rain shwrs    IS IS SC SC      IS SC SC         SC SC   IS IS IS SC

$$
PRZ012-292000-
Culebra-
Including the city of Culebra
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      87          79          87          78    85 87 91
Temp          80 84 86 87 84 82 81 80 80 84 86 87 83 80 79 78 78 83 87 87 82 80
Dewpt         76 77 77 77 77 76 76 76 75 76 76 76 77 76 76 76 76 77 77 76 77 76
RH            88 80 75 72 80 82 85 88 85 77 72 70 82 88 91 94 94 82 72 70 85 88
Wind dir       E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd      11 14 14 14 16 17 17 18 19 18 19 18 18 19 20 17 17 17 17 14 14 16
Clouds        SC B1 B1 B2 SC SC B1 B1 B1 SC SC B1 SC B1 B1 B1 B1 SC SC B1 B1 B1
PoP 12hr                     50          40          40          40          40
QPF 12hr                   0.21        0.11        0.21        0.20        0.15
Snow 12hr                    MM          MM          MM
Rain shwrs    IS SC SC SC SC IS SC SC SC IS IS SC SC SC SC SC SC SC SC SC SC SC
Tstms                  IS
Heat index    86 93 97 98 93 88 87 85 84 93 96 97 91 86 82       92 97 98 90 85
Max heat         97   103   102    90    95   102   101    90    95   104   102


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          77    87      77    87      78    88      78    88
Temp          78 83 87 80   78 83 87 81   79 84 88 81   79 84 88 82
Dewpt         76 76 76 76   76 76 76 76   76 76 76 76   76 77 76 76
PWind dir         E     E       E     E       E     E       E     E
Wind char        BZ    GN      GN    GN      BZ    GN      BZ    GN
Avg clouds    B1 B1 B2 B2   B2 B1 B1 B1   SC SC SC SC   SC SC SC SC
PoP 12hr         50    50      50    50      30    30      20    30
Rain shwrs    SC SC SC SC   SC SC SC SC   SC SC SC SC   IS IS SC SC

$$
PRZ013-292000-
Vieques-
Including the city of Vieques
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      86          79          86    74 77 80          87
Temp          78 83 85 86 83 81 80 79 79 83 85 86 82 79 78 77 77 82 86 87 81 79
Dewpt         75 76 76 76 76 75 75 75 75 75 75 75 75 75 75 75 75 76 75 75 76 75
RH            91 80 75 72 80 82 85 88 88 77 72 70 79 88 91 94 94 82 70 68 85 88
Wind dir       E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd      11 14 14 14 16 18 17 19 17 17 19 18 18 19 20 17 16 17 16 14 14 16
Clouds        SC SC B1 B1 SC SC B1 B1 B1 SC SC B1 SC B1 B1 B1 B1 B1 B1 B1 B1 B2
PoP 12hr                     40          40          40          40          50
QPF 12hr              0.12-0.18   0.12-0.18        0.21        0.20   0.16-0.24
Snow 12hr                    MM          MM          MM
Rain shwrs    IS SC SC SC IS IS SC SC SC SC SC SC IS SC SC SC SC SC SC SC SC SC
Tstms                  IS
Heat index    81 91 95 96 91 86 83 80    90 94 95 89 83          89 95 96 87 81
Max heat         94    99    98    89    92    97    97    88    92    99    98


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          75    87      76    87      76    88      76    88
Temp          76 82 87 79   77 82 87 79   77 83 87 80   77 83 88 80
Dewpt         75 75 75 75   75 75 75 74   75 75 75 75   75 76 75 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        BZ    GN      GN    GN      BZ    GN      BZ    GN
Avg clouds    B2 B2 B2 B2   B2 B1 B1 B1   SC SC B1 B1   SC SC SC SC
PoP 12hr         50    50      50    50      30    40      30    30
Rain shwrs    SC SC SC SC   SC SC SC SC   SC SC SC SC   SC SC SC SC

$$
VIZ001-292000-
St.Thomas...St. John...and Adjacent Islands-
Including the cities of Anna`s Retreat, Charlotte Amalie,
Charlotte Amalie East, Charlotte Amalie West, and Cruz Bay
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      86    72 79 81          86    70 78 81    85 86 91
Temp          79 83 85 86 83 81 80 80 80 83 85 86 83 80 79 78 78 83 85 86 82 80
Dewpt         76 76 76 76 76 75 75 75 75 75 75 75 75 75 76 76 75 76 75 75 76 75
RH            91 80 75 72 80 82 85 85 85 77 72 70 77 85 91 94 91 80 72 70 82 85
Wind dir       E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd      13 13 16 16 16 18 19 17 18 18 19 18 18 20 20 18 16 17 18 16 16 16
Clouds        SC B1 B1 SC SC SC B1 B1 B1 SC SC SC SC B1 B1 SC SC SC SC SC SC SC
PoP 12hr                     40          40          30          30          30
QPF 12hr                   0.17   0.13-0.20        0.15        0.15        0.08
Snow 12hr                    MM          MM          MM
Rain shwrs    IS SC SC SC IS IS SC SC SC IS IS IS SC SC SC SC SC IS IS IS IS SC
Heat index    84 91 95 96 91 87 85 84 83 91 94 95 90 85 83 81    90 95 95 88 84
Max heat         96   102   101    90    94   101   100    90    95   103   101


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          77    86      77    86      78    87      78    87
Temp          78 82 86 80   77 82 86 80   79 83 87 81   79 83 87 81
Dewpt         75 75 75 75   75 75 75 75   75 76 75 75   75 76 75 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        BZ    GN      BZ    BZ      BZ    BZ      BZ    GN
Avg clouds    SC B1 B1 B1   B2 B1 SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         40    50      50    30      30    30      20    30
Rain shwrs    SC SC SC SC   SC SC IS SC   SC SC SC SC   IS IS SC SC

$$
VIZ002-292000-
St Croix-
Including the cities of Christiansted, Frederiksted,
Frederiksted Southeast, and Grove Place
231 AM AST Tue Sep 29 2026

Date             Tue 09/29/26            Wed 09/30/26            Thu 10/01/26
AST 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      86          78          86    73 75 79          87
Temp          78 83 85 86 83 80 79 78 78 83 85 86 82 78 77 76 75 82 86 87 81 79
Dewpt         76 77 77 76 76 76 76 76 75 76 76 76 76 76 76 76 75 77 77 76 77 76
RH            94 82 77 72 80 88 91 94 91 80 75 72 82 94 97100100 85 75 70 88 91
Wind dir       E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd      10 13 16 14 17 16 16 16 14 18 19 18 17 17 18 14 14 16 17 14 14 13
Wind gust                                            27
Clouds        SC B1 B1 SC SC SC B1 B1 B1 B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 B1
PoP 12hr                     40          40          40          30          40
QPF 12hr                   0.16   0.17-0.22        0.20        0.11        0.15
Snow 12hr                    MM          MM          MM
Rain shwrs    SC SC SC IS IS IS SC SC SC SC SC IS SC SC SC IS IS SC SC SC SC SC
Heat index    81 91 96 96 91 86 82       90 95 95 88             89 96 97 88 82
Max heat         96   104   102    88    95   103   101    87    94   105   102


Date          Fri 10/02/26  Sat 10/03/26  Sun 10/04/26  Mon 10/05/26
AST 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          76    87      76    87      77    87      77    88
Temp          77 82 87 79   77 82 87 80   78 83 87 80   78 83 88 81
Dewpt         76 76 76 76   76 76 76 75   76 76 76 76   76 77 76 76
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1 B1 B1 B1   B2 B1 SC SC   SC SC SC SC   SC SC SC SC
PoP 12hr         50    50      50    20      20    30      30    30
Rain shwrs    SC SC SC SC   SC SC IS IS   IS IS IS SC   SC SC SC SC

$$