Area Forecast Matrices
Issued by NWS San Juan, PR

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521
FOCA52 TJSJ 220631
AFMSJU

Area Forecast Matrices
National Weather Service San Juan PR
231 AM AST Sat Aug 22 2026

PRZ001-222000-
San Juan and Vicinity-
Including the cities of Bayamon, Carolina, Catano, Guaynabo,
San Juan, Toa Alta, Toa Baja, and Trujillo Alto
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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 90 93    72 78 82    84 90 93    73 78 82    84 90 93
Temp          79 85 89 90 86 82 80 78 79 85 89 90 86 82 80 79 79 86 89 90 87 82
Dewpt         75 76 76 76 76 75 76 75 74 76 75 76 77 77 77 76 76 77 77 77 77 77
RH            88 75 66 64 72 79 88 91 85 75 64 64 75 85 91 91 91 75 68 66 72 85
Wind dir      SE  E  E  E  E  E  E  E SE  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd       5  8 11 14 12  8  6  5  5  8 13 14 14  9  8  6  8  8 12 16 14  9
Wind gust                 23                   26 25                   27 25
Clouds        SC FW SC SC SC FW CL FW SC B1 SC FW FW B1 B1 B1 B1 SC SC SC SC SC
PoP 12hr                     50          50          50          40          20
QPF 12hr                   0.06   0.04-0.10   0.02-0.11   0.03-0.08   0.02-0.11
Snow 12hr                    MM          MM          MM
Rain shwrs    IS IS SC SC SC IS    IS SC SC IS IS IS SC SC SC SC IS IS IS IS IS
Tstms                  IS
Heat index    82 95101103 96 88 84 80 82 95100103 98 90 86 82 83 97103104 98 91
Max heat        101   110   109    94   100   110   110    95   103   114   113


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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          78    90      78    91      78    90      78    90
Temp          79 86 90 82   79 86 91 83   79 86 90 82   79 85 90 82
Dewpt         76 77 78 77   77 77 77 77   76 76 76 76   76 76 77 77
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      GN    GN      GN    GN
Avg clouds    SC SC B1 B1   B1 B1 SC SC   B1 B1 SC FW   FW FW SC SC
PoP 12hr         30    40      40    40      40    20       5    30
Rain shwrs    IS IS SC SC   SC SC SC SC   SC SC IS IS      IS IS SC
Tstms               IS IS   IS IS

$$
PRZ002-222000-
Northeast-
Including the cities of Ceiba, Canovanas, Fajardo, Humacao,
Loiza, Luquillo, Naguabo, and Rio Grande
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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 94    66 78 82    75 88 94    67 78 82    75 88 94
Temp          78 84 87 88 85 81 80 78 79 84 87 88 85 81 80 79 79 84 87 88 85 81
Dewpt         74 75 74 74 74 74 74 74 73 74 74 75 75 75 75 75 75 76 75 76 76 76
RH            88 74 65 63 70 79 82 88 82 72 65 66 72 82 85 88 88 77 68 68 75 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       8 10 10 12 11  8  9  9  9 11 13 12 11  9 10  9 10  9 12 12 12 10
Wind gust              23       19             23    19 20 20          23
Clouds        FW SC SC SC SC FW CL FW SC B2 SC B1 FW B1 B1 B1 B1 SC SC SC SC SC
PoP 12hr                     50          60          60          40          30
QPF 12hr                   0.09        0.11   0.09-0.18        0.07   0.02-0.11
Snow 12hr                    MM          MM          MM
Rain shwrs    IS IS SC SC SC       IS SC NM IS SC IS SC SC SC SC IS IS SC SC IS
Tstms                  IS IS                   IS
Heat index    81 91 96 97 92 86 84 81 82 91 96 98 94 88 85 82 83 93 98 99 94 88
Max heat         97   105   103    93    97   105   104    95    99   106   105


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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          78    88      78    88      78    88      78    88
Temp          79 84 88 81   79 84 88 82   79 84 88 82   79 84 88 82
Dewpt         75 76 76 76   75 76 75 75   74 74 74 74   74 75 75 75
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC SC B1 B1   B2 B2 SC SC   B1 B1 SC SC   SC SC SC B1
PoP 12hr         40    50      50    40      40    30      30    40
Rain shwrs    IS SC SC NM   NM NM SC SC   SC SC IS IS   IS IS SC SC
Tstms               IS IS   IS IS

$$
PRZ003-222000-
Southeast-
Including the cities of Arroyo, Guayama, Maunabo, Patillas,
Salinas, and Yabucoa
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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                79 89 94    68 77 82    79 89 94    69 77 82    79 89 94
Temp          78 84 88 89 85 81 79 78 78 84 88 89 85 81 80 78 79 85 88 89 86 81
Dewpt         74 74 73 73 73 72 73 73 73 73 73 73 74 75 75 74 74 75 74 74 74 75
RH            88 72 61 59 67 74 82 85 85 70 61 59 70 82 85 88 85 72 63 61 68 82
Wind dir       E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E NE
Wind spd       6  9 10 13 11  8  6  8  8  9 13 12 11  9  9  9  9  9 12 13 12  8
Wind gust           21 28 24                26 26 25             19 25 29 25
Clouds        FW SC SC SC SC CL CL FW SC SC CL FW FW SC SC SC SC FW FW FW FW SC
PoP 12hr                     40          40          40          10          20
QPF 12hr                   0.06   0.04-0.11   0.01-0.18        0.02        0.01
Snow 12hr                    MM          MM          MM
Rain shwrs    IS IS IS SC SC       IS SC SC    IS IS IS IS IS IS IS IS IS IS IS
Heat index    80 91 95 96 91 85 82    80 91 96 97 93 87 84 81 82 92 97 98 93 87
Max heat         99   106   104    91    99   107   107    93   102   109   108


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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          78    88      77    89      78    89      78    89
Temp          79 84 88 81   78 84 89 81   79 84 89 81   79 84 89 81
Dewpt         74 75 74 75   75 75 73 74   74 74 73 74   73 74 74 75
PWind dir         E     E       E     E      NE     E      NE     E
Wind char        LT    GN      LT    GN      GN    GN      GN    GN
Avg clouds    SC SC SC SC   B1 B1 SC SC   SC SC FW FW   SC SC SC SC
PoP 12hr         30    40      40    30      20    10      10    40
Rain shwrs    IS IS IS IS   SC SC SC IS   IS IS IS IS   IS IS IS SC
Tstms                  IS   IS IS

$$
PRZ004-222000-
Eastern Interior-
Including the cities of Aguas Buenas, Caguas, Cayey, Cidra,
Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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                77 87 93    68 74 78    77 87 94    69 75 79    77 88 94
Temp          75 82 86 87 83 78 76 75 75 82 86 87 84 79 77 76 76 83 87 88 84 79
Dewpt         73 74 73 73 73 73 73 73 72 73 73 73 74 74 74 74 74 75 74 74 74 74
RH            94 77 65 63 72 85 90 94 90 74 65 63 72 85 90 94 94 77 65 63 72 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       3  6  9 11 10  4  3  3  4  8 11 12 11  5  5  5  5  6 11 12 11  5
Clouds        FW SC SC SC SC FW CL FW SC B1 FW FW FW SC SC SC SC SC SC SC SC SC
PoP 12hr                     50          50          50          30          20
QPF 12hr                   0.07   0.04-0.11   0.02-0.11   0.01-0.08   0.01-0.09
Snow 12hr                    MM          MM          MM
Rain shwrs    IS IS SC SC SC       IS SC SC IS IS IS IS IS IS IS IS IS IS IS IS
Tstms                  IS
Heat index       88 94 94 89 80          88 94 95 90 82          90 96 96 91 82
Max heat         99   105   104    89    99   106   106    91   102   108   107


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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      75    88      75    87      75    87
Temp          76 82 87 79   76 83 88 79   76 83 87 79   76 83 87 79
Dewpt         74 75 74 74   74 75 73 74   73 74 73 73   73 74 74 74
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    SC SC SC SC   SC SC SC SC   B1 SC SC FW   FW FW SC SC
PoP 12hr         30    30      30    40      40    20      10    30
Rain shwrs    IS IS SC SC   SC SC SC IS   SC SC IS IS   IS IS IS SC
Tstms                  IS   IS IS

$$
PRZ005-222000-
North Central-
Including the cities of Arecibo, Barceloneta, Dorado, Florida,
Manati, Vega Alta, and Vega Baja
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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                85 90 94    72 75 82    85 90 94    73 76 82    85 90 94
Temp          77 85 89 90 85 80 78 76 77 85 89 90 86 81 79 77 78 85 89 90 86 81
Dewpt         75 76 77 77 77 76 75 75 74 76 76 77 78 77 76 76 75 77 78 78 79 78
RH            94 75 68 66 77 88 91 97 90 75 66 66 77 88 91 97 91 77 70 68 80 91
Wind dir       E  E  E NE NE  E SE SE SE  E  E  E  E  E  E  E  E  E  E NE  E  E
Wind spd       8  6 11 14 14 11  8  5  5  6 12 17 17 12  8  6  6  8 12 18 17 12
Wind gust              25 27 21             23 32 32 23                33 33 24
Clouds        SC FW SC SC B1 FW FW FW FW SC FW SC SC SC SC SC SC FW FW SC SC FW
PoP 12hr                     50          20          30          10          10
QPF 12hr              0.05-0.54        0.03   0.02-0.46   0.00-0.05   0.00-0.24
Snow 12hr                    MM          MM          MM
Rain shwrs    SC IS SC SC SC IS IS IS IS IS IS SC SC IS IS IS IS IS IS IS IS IS
Tstms                  IS IS                   IS IS
Heat index       94102103 97 85          94101103 98 88 81       95104105 99 89
Max heat        101   110   110    93   101   110   110    94   103   116   114


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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    90      76    91      76    90      76    90
Temp          77 85 90 81   77 85 91 81   77 85 90 81   77 85 90 81
Dewpt         76 78 78 77   76 78 78 77   76 77 77 76   75 77 78 77
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      LT    GN      GN    GN      GN    GN
Avg clouds    FW FW SC SC   SC FW FW FW   FW FW SC FW   CL CL FW FW
PoP 12hr         10    30      10     5      20    20       0    10
Rain shwrs    IS IS IS SC   IS IS IS IS   IS IS IS IS         IS IS

$$
PRZ006-222000-
Central Interior-
Including the cities of Aibonito, Barranquitas, Ciales, Coamo,
Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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 85 93    62 72 77    75 85 93    63 73 78    75 85 93
Temp          74 80 84 85 81 76 74 73 73 80 84 85 82 77 75 74 74 81 85 85 82 77
Dewpt         72 72 72 72 72 72 72 71 71 72 71 71 73 73 73 73 72 73 73 72 74 73
RH            93 77 67 65 74 87 93 93 93 77 65 63 74 87 94 97 93 77 67 65 77 87
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       3  5  8  9  8  4  3  4  4  5 10 11 10  5  4  4  4  6 10 11 10  5
Wind gust           21 28 20                25 25 24                24 29 24
Clouds        FW FW SC SC B1 FW CL FW SC SC FW SC SC SC SC SC SC FW FW B1 B1 FW
PoP 12hr                     60          20          20           5          40
QPF 12hr              0.05-0.70        0.03   0.01-0.46        0.01   0.01-0.36
Snow 12hr                    MM          MM          MM
Rain shwrs    IS    IS SC NM IS    IS IS IS IS IS IS IS IS IS IS       SC SC IS
Tstms                  IS IS                      IS                   IS IS
Heat index       84 90 91 85             84 90 91 86             85 91 92 87
Max heat         98   108   106    86    97   106   106    88    99   108   107


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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    85      73    85      73    85
Temp          74 80 85 77   74 81 85 77   74 80 85 77   74 80 85 77
Dewpt         73 74 73 73   73 74 72 72   72 72 72 72   72 73 73 73
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    LT      LT    GN      LT    GN      LT    GN
Avg clouds    FW FW SC SC   FW FW FW SC   FW FW SC FW   CL FW FW FW
PoP 12hr          5    40       0    30       5    10       0     0
Rain shwrs    IS IS IS SC         IS IS   IS IS IS IS         IS IS
Tstms               IS IS

$$
PRZ007-222000-
Ponce and Vicinity-
Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas,
Ponce, and Santa Isabel
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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 89 94    62 75 82    75 89 94    63 76 82    75 89 94
Temp          77 84 88 89 85 80 78 76 76 84 88 89 85 80 78 77 77 84 88 89 85 81
Dewpt         71 71 72 72 73 71 70 70 70 70 72 72 74 74 73 72 71 72 73 73 74 73
RH            82 65 59 57 67 74 76 82 82 63 59 57 70 82 85 85 82 67 61 59 70 77
Wind dir       E  E SE SE SE  E NE NE  E  E SE SE SE  E  E  E  E  E  E SE SE  E
Wind spd       4  4 11 11  8  6  5  4  4  6 12 12 11  8  5  5  5  8 12 13 10  8
Wind gust           24 28 23                26 27 25             19 25 31 27
Clouds        FW CL FW SC B1 FW CL FW SC FW CL SC SC FW FW FW FW CL CL B1 B1 FW
PoP 12hr                     60          10          30           0          30
QPF 12hr              0.04-0.64        0.02   0.01-0.45           0   0.00-0.47
Snow 12hr                    MM          MM          MM
Rain shwrs    IS    IS SC SC IS    IS IS IS    SC SC                   SC SC IS
Tstms                     IS                   IS IS                   IS IS
Heat index       89 95 96 91 82          88 95 97 92 85 81       89 96 97 93 85
Max heat         95   107   105    91    94   106   106    92    96   108   107


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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    88      76    89      76    89      76    89
Temp          77 84 88 80   77 84 89 80   77 84 89 80   77 84 89 80
Dewpt         72 72 74 74   73 73 72 72   71 71 72 73   71 71 73 74
PWind dir         E     E       E     E      NE     E       E     E
Wind char        LT    GN      LT    GN      LT    GN      LT    GN
Avg clouds    FW FW FW SC   FW FW FW SC   FW FW FW FW   FW FW FW FW
PoP 12hr          0    30       0    20       0     5       0     5
Rain shwrs    IS IS IS SC         IS IS         IS IS         IS IS
Tstms               IS IS

$$
PRZ008-222000-
Northwest-
Including the cities of Aguadilla, Camuy, Hatillo, Isabela,
and Quebradillas
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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                85 88 93    70 74 82    85 88 94    70 75 82    85 88 94
Temp          76 83 87 88 83 78 76 75 75 83 87 88 84 79 77 76 76 83 87 88 84 79
Dewpt         73 75 76 76 76 76 75 73 72 74 75 76 77 76 76 74 74 76 77 77 77 77
RH            90 77 70 68 80 94 97 94 90 74 68 68 80 91 97 94 94 80 72 70 80 94
Wind dir       E  E NE NE NE  E  E  E  E  E  E NE  E  E  E  E  E  E  E NE  E  E
Wind spd      11  9  9 12 12 12  9  9  6  9  9 13 13 12  8  8  8  9  9 16 14 14
Wind gust     21       23 23 23                27 28 24             19 28 29 28
Clouds        SC SC SC SC B2 SC FW FW CL FW FW B1 B2 SC SC SC SC CL CL SC SC FW
PoP 12hr                     70          30          60          10          30
QPF 12hr              0.09-0.62        0.03   0.31-0.46        0.01   0.00-0.42
Snow 12hr                    MM          MM          MM
Rain shwrs    SC IS SC SC NM SC IS IS    IS IS NM NM IS IS IS IS       SC SC IS
Tstms                     IS                   IS IS
Heat index       90 97 99 92 80          89 97 99 93 82          91 99101 94 83
Max heat         97   109   107    92    96   109   108    93    99   112   111


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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    89      75    89      75    88      75    88
Temp          76 83 89 79   76 83 89 79   76 83 88 79   76 83 88 79
Dewpt         75 76 78 77   74 76 77 76   74 75 76 76   74 75 77 76
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    LT      LT    GN      GN    GN      GN    GN
Avg clouds    FW FW SC SC   FW FW FW SC   FW FW FW FW   CL CL FW SC
PoP 12hr          5    50       5    20       0    10       0    20
Rain shwrs    IS IS SC SC   IS IS IS IS         IS IS         IS IS
Tstms               IS IS                                        IS

$$
PRZ009-222000-
Western Interior-
Including the cities of Adjuntas, Lares, Las Marias, Maricao,
Sabana Grande, San Sebastian, and Utuado
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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 86 94    65 71 75    75 86 94    66 72 76    75 86 94
Temp          73 80 85 86 81 76 74 72 73 80 85 86 82 77 75 73 74 81 85 86 82 77
Dewpt         71 72 73 74 74 73 72 71 70 72 72 73 74 74 73 72 72 73 74 75 75 74
RH            93 77 67 68 79 90 93 97 90 77 65 65 77 90 94 97 93 77 70 70 79 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       4  4  4  5  5  4  4  4  4  5  6  5  5  4  4  4  4  5  6  6  5  5
Wind gust           21 19                   25 26                   24 26    16
Clouds        FW FW SC SC B2 FW FW FW FW FW FW B2 B2 FW FW FW FW CL CL B2 B2 FW
PoP 12hr                     70          10          60           0          60
QPF 12hr              0.14-0.75        0.01   0.15-0.46           0   0.05-0.55
Snow 12hr                    MM          MM          MM
Rain shwrs    IS IS IS SC NM IS IS IS IS IS IS NM NM                   NM NM IS
Tstms                     IS                   IS IS                   IS IS
Heat index       84 92 93 86             84 91 93 87             85 93 95 88
Max heat         98   110   110    87    97   110   109    87    98   113   111


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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      73    86      73    86
Temp          74 81 86 77   74 81 86 77   73 81 86 77   73 81 86 77
Dewpt         73 74 75 74   72 74 75 74   72 72 74 73   71 72 75 74
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 CL FW SC   FW FW FW SC   CL CL FW SC
PoP 12hr          5    60       0    40       5    30       0    40
Rain shwrs    IS IS NM NM         SC SC   IS IS SC SC         SC SC
Tstms               IS IS            IS                       IS IS

$$
PRZ010-222000-
Mayaguez and Vicinity-
Including the cities of Aguada, Anasco, Hormigueros, Mayaguez,
Moca, Rincon, and San German
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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                77 91 94    67 74 82    77 91 94    68 75 82    77 91 94
Temp          77 85 90 91 86 80 77 75 76 85 90 91 86 80 78 76 77 85 90 91 86 81
Dewpt         73 75 77 77 77 76 75 74 72 75 76 77 77 77 76 75 74 76 78 78 78 77
RH            87 72 66 64 75 88 94 97 87 72 64 64 75 91 94 97 90 75 68 66 77 88
Wind dir       E  E  E NE NE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
Wind spd      10  5  4  5  8  6  6  6  6  6  5  6  6  8  6  6  6  6  5  8  8  9
Wind gust     25       16    18 17 20    18 18 18 17 19    23    20 17 20 18 23
Clouds        FW FW SC SC B2 SC FW FW FW FW FW B1 B1 SC SC SC SC CL CL B2 B2 SC
PoP 12hr                     70          20          50          10          60
QPF 12hr              0.02-0.73   0.01-0.06   0.02-0.46        0.01   0.01-0.56
Snow 12hr                    MM          MM          MM
Rain shwrs    IS IS IS SC NM IS IS IS    IS IS SC NM IS IS IS IS       NM NM IS
Tstms                     IS                   IS IS                   IS IS
Heat index       94102104 97 84          93101103 97 86 80       95104106 99 88
Max heat        103   110   110    92   101   110   110    93   104   118   114


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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    91      76    91      76    91      76    91
Temp          77 85 91 81   77 85 91 81   77 85 91 81   77 85 91 81
Dewpt         75 76 79 77   75 76 79 77   74 75 78 76   74 75 78 77
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    LT      LT    GN      LT    LT      LT    LT
Avg clouds    SC SC SC B1   FW FW FW B1   SC FW FW SC   CL CL FW SC
PoP 12hr         20    60       5    50      10    40       0    40
Rain shwrs    IS IS NM NM   IS IS SC SC   IS IS SC SC         SC SC
Tstms               IS IS         IS IS                       IS IS

$$
PRZ011-222000-
Southwest-
Including the cities of Cabo Rojo, Guanica, and Lajas
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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                85 93 94    72 75 82    85 93 94    73 76 82    85 93 94
Temp          77 86 92 93 87 81 78 76 77 86 92 93 87 81 79 77 78 86 92 93 88 82
Dewpt         72 73 74 75 75 74 73 71 70 71 74 75 75 76 75 74 72 73 75 75 76 76
RH            85 65 56 56 68 79 85 85 79 61 56 56 68 85 88 90 82 65 58 56 68 82
Wind dir       E  E SE SE  E  E  E  E  E  E SE SE  E  E  E  E  E  E  E SE  E  E
Wind spd       5  6 11 11  9  9 10  6  5  8 14 16  9 10 11  8  6 10 13 16  9  9
Wind gust           25 23 20    25       19 28 31 21 21 27       21 28 31 20 20
Clouds        CL CL FW SC B1 FW FW FW FW CL CL FW FW FW FW FW FW CL CL SC SC SC
PoP 12hr                     40          10          10           0          30
QPF 12hr              0.04-0.37        0.01   0.01-0.23           0   0.00-0.55
Snow 12hr                    MM          MM          MM
Rain shwrs             IS SC IS IS IS IS       IS IS                   IS IS IS
Tstms                     IS                                           IS IS
Heat index       93101104 97 85          91101104 97 88 81       94103105 99 89
Max heat         96   110   109    91    95   110   110    93    98   113   112


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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    93      76    93      76    93      76    93
Temp          77 87 93 82   77 87 93 82   77 86 93 81   77 86 93 81
Dewpt         73 73 76 76   75 75 74 75   72 72 75 76   73 72 75 76
PWind dir         E     E       E     E       E     E       E     E
Wind char        LT    GN      GN    BZ      LT    GN      LT    GN
Avg clouds    SC FW FW SC   FW FW FW SC   FW FW FW FW   CL CL FW FW
PoP 12hr         20    20       0    20       5     5       0     5
Rain shwrs    IS IS IS IS         IS IS   IS IS IS IS            IS

$$
PRZ012-222000-
Culebra-
Including the city of Culebra
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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                85 89 94          81    85 89 94          81    85 89 94
Temp          82 86 88 89 86 84 83 82 82 86 89 89 87 84 83 82 82 86 89 89 87 84
Dewpt         76 77 77 76 77 76 76 75 75 76 77 77 78 77 77 77 77 78 78 78 78 77
RH            82 75 70 66 75 77 80 79 79 72 68 68 75 80 82 85 85 77 70 70 75 80
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      14 14 13 14 13 14 17 17 14 17 16 14 14 17 18 17 16 17 16 14 14 16
Clouds        FW SC SC SC SC CL CL SC SC SC SC B2 SC SC SC SC SC SC SC SC SC SC
PoP 12hr                     50          50          60          20          20
QPF 12hr                   0.10        0.09        0.17        0.03        0.02
Snow 12hr                    MM          MM          MM
Rain shwrs    IS SC SC SC SC       SC SC SC SC NM IS IS IS IS IS IS IS IS IS IS
Tstms                  IS IS                   IS
Heat index    88 96100100 97 92 91 88 89 96101102 99 94 92 90 90 98102102100 94
Max heat        100   105   104    94   100   107   106    95   102   107   106


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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          81    89      81    89      81    89      81    89
Temp          82 86 89 84   82 86 89 84   82 86 89 84   82 86 89 84
Dewpt         77 78 78 78   78 78 78 77   77 77 77 76   76 77 78 77
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    SC SC B1 SC   B1 B1 SC SC   SC SC SC FW   CL FW FW SC
PoP 12hr         40    40      40    30      30    20       0    40
Rain shwrs    IS SC SC SC   SC SC IS IS   SC SC IS IS         IS SC
Tstms                  IS   IS IS

$$
PRZ013-222000-
Vieques-
Including the city of Vieques
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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                85 89 92          81    85 89 93          81    85 90 93
Temp          81 86 89 89 87 84 83 81 82 86 89 89 87 84 83 82 82 86 89 90 87 84
Dewpt         74 75 74 74 74 74 74 74 74 75 75 75 76 76 76 76 75 76 76 76 76 76
RH            79 70 61 61 65 72 74 79 77 70 64 64 70 77 80 82 79 72 66 64 70 77
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      14 13 12 14 14 14 16 16 14 17 16 14 14 17 18 17 17 16 14 14 14 17
Clouds        FW SC SC SC SC CL CL SC SC B2 FW B2 FW SC SC SC SC SC SC SC SC SC
PoP 12hr                     50          60          60          20          10
QPF 12hr                   0.10        0.11   0.09-0.18        0.03        0.02
Snow 12hr                    MM          MM          MM
Rain shwrs    IS SC SC SC SC       SC SC NM IS NM IS IS IS IS IS IS IS IS IS IS
Tstms                  IS IS                   IS
Heat index    87 95 98 98 95 91 89 87 87 95 99100 97 92 90 88 89 97100101 97 92
Max heat         98   102   101    92    97   104   104    94   100   105   105


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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          81    89      81    90      81    89      81    89
Temp          81 86 89 84   82 86 90 84   82 86 89 84   82 86 89 84
Dewpt         76 76 76 76   76 76 75 75   75 75 74 75   75 75 75 76
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    SC SC SC B1   B2 B1 SC SC   SC SC FW FW   FW FW SC B1
PoP 12hr         30    50      50    30      30    10       5    50
Rain shwrs    IS SC SC SC   SC SC IS IS   SC IS IS IS   IS IS IS SC
Tstms                  IS   IS IS

$$
VIZ001-222000-
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 Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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                85 88 94    74 80 82    85 88 94    74 81 82    85 88 94
Temp          81 85 87 88 86 83 82 81 81 85 88 88 86 83 82 81 82 85 88 88 86 83
Dewpt         75 75 75 74 74 75 75 74 74 75 75 75 76 76 76 76 76 77 76 76 76 76
RH            82 72 68 63 68 77 79 79 79 72 66 66 72 80 82 85 82 77 68 68 72 80
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      16 14 14 14 12 16 16 16 14 17 18 14 14 17 18 17 16 17 16 14 14 16
Clouds        FW SC SC SC SC CL CL SC SC SC SC SC SC SC SC SC SC SC SC FW FW SC
PoP 12hr                     50          30          50          20          20
QPF 12hr                   0.08        0.07   0.09-0.16        0.03        0.02
Snow 12hr                    MM          MM          MM
Rain shwrs    IS SC SC SC SC       SC IS IS SC SC IS IS IS IS IS IS IS IS IS IS
Tstms                                          IS
Heat index    86 93 96 96 93 89 88 86 86 94 98 98 96 91 89 87 88 95 99 98 96 91
Max heat        100   106   105    94   100   107   106    96   102   108   107


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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          80    88      81    88      80    88      80    88
Temp          81 85 88 83   81 85 88 83   81 85 88 83   81 85 88 83
Dewpt         76 77 76 76   77 76 75 76   75 75 74 75   75 76 75 76
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    SC SC B1 B1   B2 SC FW FW   SC SC FW FW   CL CL FW SC
PoP 12hr         40    50      50    30      30    10       0    40
Rain shwrs    IS SC SC SC   SC SC IS SC   SC SC IS            IS SC
Tstms                  IS   IS IS

$$
VIZ002-222000-
St Croix-
Including the cities of Christiansted, Frederiksted,
Frederiksted Southeast, and Grove Place
231 AM AST Sat Aug 22 2026

Date             Sat 08/22/26            Sun 08/23/26            Mon 08/24/26
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                85 89 94          80    85 89 94          81    85 89 94
Temp          81 85 88 89 86 83 82 81 81 86 88 89 86 83 82 81 82 86 88 89 86 83
Dewpt         75 75 75 75 75 75 75 75 75 76 77 77 77 77 77 77 77 77 77 77 77 77
RH            82 72 66 64 70 77 79 82 82 72 70 68 75 82 85 88 85 75 70 68 75 82
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 14 16 13 12 13 16 14 13 17 16 14 14 14 16 16 14 16 16 14 13 12
Clouds        FW SC SC SC SC FW FW SC SC FW SC FW FW SC SC SC SC SC SC FW FW SC
PoP 12hr                     50          40          30          20          10
QPF 12hr                   0.07        0.06   0.02-0.09        0.03        0.02
Snow 12hr                    MM          MM          MM
Rain shwrs    IS SC SC SC SC IS IS SC IS IS SC IS IS IS IS IS IS IS IS IS IS IS
Tstms                  IS
Heat index    87 94 98 98 95 91 89 86 87 95100101 98 93 91 88 89 97101101 98 93
Max heat        100   107   106    94   101   109   108    96   103   110   109


Date          Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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          80    89      81    89      81    89      80    89
Temp          81 86 89 83   81 86 89 83   81 86 89 83   81 86 89 83
Dewpt         77 77 77 78   77 77 76 77   76 76 76 76   76 76 77 77
PWind dir         E     E       E     E       E     E       E     E
Wind char        GN    GN      BZ    BZ      BZ    BZ      BZ    BZ
Avg clouds    SC SC B1 SC   B1 B1 FW FW   SC SC FW FW   FW FW FW SC
PoP 12hr         40    50      50    30      30    10       5    50
Rain shwrs    IS SC SC SC   SC SC IS IS   IS IS IS IS   IS IS IS SC
Tstms                  IS   IS IS

$$