037
FOCA52 TJSJ 071831
AFMSJU
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN JUAN PR
231 PM AST MON SEP 7 2026
PRZ001-080800-
SAN JUAN AND VICINITY-
INCLUDING THE CITIES OF BAYAMON, CAROLINA, CATANO, GUAYNABO,
SAN JUAN, TOA ALTA, TOA BAJA, AND TRUJILLO ALTO
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 73 78 82 82 88 91 72 77 82 81 86 88 72 77 82
TEMP 84 81 80 79 78 84 87 88 83 80 79 77 77 82 85 85 82 79 78 77 77 82
DEWPT 78 77 77 76 76 77 78 77 77 76 76 76 75 77 78 78 78 77 77 76 76 77
RH 82 88 91 91 94 80 75 70 82 88 91 97 94 85 80 80 88 94 97 97 97 85
WIND DIR SE SE SE SE SE E E E E E E E E E E E E E E E E E
WIND SPD 10 6 6 5 6 9 14 14 13 10 8 8 8 10 14 16 13 9 9 8 8 11
CLOUDS B2 SC FW B1 B1 B1 B1 B1 B1 SC B1 SC B1 B2 B2 B1 B1 SC SC B1 B1 B1
POP 12HR 50 40 50 50 50
QPF 12HR 0.06-0.36 0.10-0.19 0.10-0.20 0.25-0.50 0.13-0.35
SNOW 12HR MM MM MM
RAIN SHWRS NM IS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS IS IS
HEAT INDEX 95 89 84 81 80 93100100 92 85 81 89 96 97 90 83 80 91
MAX HEAT 112 95 99 110 108 94 96 104 103 94 97
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 86 77 88 77 88 76 88 76 89
TEMP 86 80 78 84 88 80 77 83 88 80 77 83 88 80 77 83 88 81
DEWPT 78 77 76 77 77 76 75 76 76 76 75 75 76 76 75 76 70 72
PWIND DIR E E E E E E E E E
WIND CHAR GN LT GN GN GN GN GN LT GN
AVG CLOUDS B1 SC SC SC FW FW FW FW FW SC SC SC SC SC FW FW SC SC
POP 12HR 50 10 10 5 20 20 30 5 30
RAIN SHWRS SC SC IS IS IS IS IS IS IS IS IS SC IS IS IS SC
TSTMS IS
PRZ002-080800-
NORTHEAST-
INCLUDING THE CITIES OF CEIBA, CANOVANAS, FAJARDO, HUMACAO,
LOIZA, LUQUILLO, NAGUABO, AND RIO GRANDE
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 67 77 82 74 87 92 67 76 82 75 84 88 67 77 82
TEMP 83 81 79 78 77 83 86 87 83 80 78 77 77 81 83 84 81 79 78 77 77 82
DEWPT 76 76 76 75 75 76 75 75 75 75 75 74 75 76 76 76 76 75 75 75 75 76
RH 80 85 91 91 94 80 70 68 77 85 91 90 94 85 80 77 85 88 91 94 94 82
WIND DIR SE SE SE SE E E E E E E E E E E E E E E E E E E
WIND SPD 11 8 10 10 10 12 13 13 12 12 11 11 10 13 16 16 13 11 11 11 12 14
WIND GUST 20 20 23 23 23 23 21 24 23 24 24 25 27
CLOUDS B2 B2 SC B2 B1 B2 B1 B1 B1 SC B1 SC B2 B2 B2 B2 B2 B1 B1 B2 B2 B2
POP 12HR 70 50 60 60 60
QPF 12HR 0.33-0.42 0.18 0.21 0.43-0.50 0.33-0.38
SNOW 12HR MM MM MM
RAIN SHWRS NM NM IS SC SC SC SC SC SC SC SC SC NM NM NM SC SC SC SC NM NM NM
TSTMS IS IS IS IS IS IS IS IS IS
HEAT INDEX 91 86 83 80 80 91 96 97 90 84 81 87 92 93 87 82 89
MAX HEAT 104 93 97 105 104 92 95 101 100 93 95
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 86 77 87 77 87 77 85 76 86
TEMP 85 79 77 83 87 80 77 83 87 80 77 82 85 79 76 82 86 80
DEWPT 76 76 75 76 75 75 74 74 74 74 74 74 74 74 74 74 73 72
PWIND DIR E E E E E E E E E
WIND CHAR GN GN GN GN GN GN GN GN GN
AVG CLOUDS B2 B1 SC SC SC SC SC SC SC SC SC SC SC SC FW FW SC B1
POP 12HR 60 30 20 10 30 30 30 20 40
RAIN SHWRS NM SC SC SC IS IS IS IS IS SC SC SC SC SC IS SC SC
TSTMS IS IS IS IS
PRZ003-080800-
SOUTHEAST-
INCLUDING THE CITIES OF ARROYO, GUAYAMA, MAUNABO, PATILLAS,
SALINAS, AND YABUCOA
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 69 77 82 78 87 91 69 76 82 77 84 89 69 76 82
TEMP 83 80 79 78 77 83 86 87 82 80 78 77 77 81 84 84 81 79 78 77 77 81
DEWPT 76 76 76 75 74 75 74 74 74 74 74 74 74 75 75 75 75 75 75 75 75 75
RH 80 88 91 91 90 77 68 65 77 82 88 90 90 82 74 74 82 88 91 94 94 82
WIND DIR SE E E E E E E E E E E E E E E E E NE NE E E E
WIND SPD 10 8 8 8 9 10 13 13 12 10 10 10 9 11 14 13 13 9 9 9 10 12
WIND GUST 19 20 31 27 25 20 20 20 19 21 29 26 25 19 19 19 20 24
CLOUDS B2 SC SC B1 B1 SC SC SC SC SC SC SC B1 B2 B2 B1 B1 B1 B1 B1 B1 B2
POP 12HR 40 30 60 60 60
QPF 12HR 0.07-0.37 0.02-0.15 0.09-0.21 0.24-0.49 0.15-0.38
SNOW 12HR MM MM MM
RAIN SHWRS SC SC IS SC SC SC SC IS IS IS IS IS SC NM NM SC SC SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS IS
HEAT INDEX 90 85 82 90 95 95 89 83 80 86 91 92 86 82 88
MAX HEAT 106 92 100 107 106 91 94 101 99 92 97
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 85 76 86 76 86 76 86 75 86
TEMP 85 79 77 82 86 79 77 82 86 79 76 82 85 78 75 81 86 79
DEWPT 75 75 75 75 74 74 74 74 72 74 73 74 72 73 73 73 70 72
PWIND DIR E E E E E NE E NE E
WIND CHAR GN GN GN GN GN GN GN LT GN
AVG CLOUDS B1 B1 SC SC SC FW FW FW SC SC SC SC SC SC FW FW SC SC
POP 12HR 60 30 10 10 20 30 30 10 40
RAIN SHWRS SC SC SC IS IS IS IS IS IS IS IS IS SC IS IS IS SC
TSTMS IS IS
PRZ004-080800-
EASTERN INTERIOR-
INCLUDING THE CITIES OF AGUAS BUENAS, CAGUAS, CAYEY, CIDRA,
COMERIO, GURABO, JUNCOS, LAS PIEDRAS, AND SAN LORENZO
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 69 74 78 77 86 91 69 73 77 77 83 87 69 73 77
TEMP 81 78 76 75 74 81 85 86 80 77 75 74 74 79 82 83 79 76 75 74 74 80
DEWPT 75 75 75 74 73 75 75 74 74 74 74 73 73 75 75 75 75 74 74 73 74 75
RH 82 91 97 97 97 82 72 68 82 90 97 97 97 88 79 77 88 94 97 97100 85
WIND DIR SE SE SE SE E E E E E E E E E E E E E E E E E E
WIND SPD 9 5 5 5 6 8 12 12 11 6 6 5 5 9 12 13 12 5 5 4 5 10
CLOUDS B2 SC FW B1 B1 B1 B1 SC SC SC SC SC B1 B2 B2 B1 B1 B1 B1 B1 B1 B2
POP 12HR 50 40 60 60 50
QPF 12HR 0.07-0.39 0.06-0.19 0.08-0.21 0.26-0.50 0.13-0.37
SNOW 12HR MM MM MM
RAIN SHWRS NM IS IS SC SC SC SC SC SC IS SC IS SC NM NM SC SC SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS IS
HEAT INDEX 87 80 87 93 93 85 82 89 90 82 84
MAX HEAT 105 89 97 104 103 86 92 100 98 85 93
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 84 74 85 73 85 73 85 72 85
TEMP 84 77 74 80 85 77 74 80 85 76 73 80 84 76 73 79 84 77
DEWPT 75 75 74 75 74 74 73 74 72 73 72 73 72 73 72 73 68 71
PWIND DIR E E E E E E E E E
WIND CHAR GN LT GN LT GN LT GN LT GN
AVG CLOUDS B1 B1 SC SC SC FW FW FW SC SC SC SC SC SC FW FW SC B1
POP 12HR 50 10 10 10 20 20 30 10 30
RAIN SHWRS SC SC IS IS IS IS IS IS IS IS IS IS SC IS IS SC
TSTMS IS IS
PRZ005-080800-
NORTH CENTRAL-
INCLUDING THE CITIES OF ARECIBO, BARCELONETA, DORADO, FLORIDA,
MANATI, VEGA ALTA, AND VEGA BAJA
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 73 76 82 83 88 91 72 75 82 86 72 75 82
TEMP 84 80 78 77 76 83 87 88 83 79 77 76 76 82 85 86 82 79 77 76 76 82
DEWPT 79 78 77 76 75 77 78 78 78 76 76 75 74 77 79 78 78 77 76 76 76 77
RH 85 94 97 97 97 82 75 72 85 91 97 97 94 85 82 77 88 94 97100100 85
WIND DIR E SE SE SE SE E E E E E E SE E E E E E E E E E E
WIND SPD 4 4 5 5 5 8 14 16 16 10 9 6 8 9 13 16 14 10 9 9 8 9
WIND GUST 28 29 27 27
CLOUDS OV SC FW SC SC FW SC SC SC SC FW FW SC SC SC B1 B1 FW FW SC SC SC
POP 12HR 10 20 20 40 20
QPF 12HR 0.02-0.14 0.03-0.13 0.02-0.15 0.22-0.56 0.02-0.19
SNOW 12HR MM MM MM
RAIN SHWRS NM IS IS IS IS IS IS IS IS IS IS IS IS IS SC SC IS IS IS IS IS
TSTMS IS IS IS
HEAT INDEX 96 86 93101102 93 83 89 98 99 90 81 91
MAX HEAT 112 95 99 111 109 93 96 107 105 94 97
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 87 76 89 75 89 74 88 74 89
TEMP 87 80 77 84 89 79 76 83 89 79 75 82 88 78 75 83 88 79
DEWPT 78 77 76 77 77 76 75 76 76 75 75 76 76 75 74 76 73 73
PWIND DIR E E E E E E E E E
WIND CHAR GN LT GN GN BZ GN BZ GN GN
AVG CLOUDS SC SC FW FW FW FW CL CL FW FW FW FW FW SC SC SC FW SC
POP 12HR 30 0 5 0 10 0 20 20 20
RAIN SHWRS SC SC IS IS IS IS IS IS IS IS IS IS IS IS
TSTMS IS
PRZ006-080800-
CENTRAL INTERIOR-
INCLUDING THE CITIES OF AIBONITO, BARRANQUITAS, CIALES, COAMO,
COROZAL, JAYUYA, MOROVIS, NARANJITO, OROCOVIS, AND VILLALBA
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 65 73 77 74 84 92 66 72 76 76 82 89 66 72 76
TEMP 79 76 75 74 73 79 83 83 79 75 74 73 72 78 82 82 78 75 74 73 73 78
DEWPT 74 74 73 72 72 73 73 73 73 72 72 72 71 73 74 73 73 73 73 72 72 74
RH 85 94 94 93 97 82 72 72 82 90 93 97 97 85 77 74 85 94 97 97 97 88
WIND DIR SE SE SE SE E E E E E E E E E E E E E E E E E E
WIND SPD 5 4 4 3 4 6 11 11 10 5 5 4 4 6 11 11 11 4 4 4 4 8
WIND GUST 17 31 26 23 27 25 23
CLOUDS B1 FW FW SC SC FW FW SC SC SC CL CL SC SC SC B1 B1 SC SC SC SC SC
POP 12HR 30 20 20 40 30
QPF 12HR 0.01-0.15 0.01-0.13 0.02-0.11 0.16-0.29 0.01-0.18
SNOW 12HR MM MM MM
RAIN SHWRS SC IS IS IS IS IS IS IS IS IS IS IS IS SC SC IS IS IS IS IS
TSTMS IS
HEAT INDEX 83 82 89 89 82 80 87 88 80 81
MAX HEAT 106 87 95 105 102 83 91 100 99 82 93
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 83 73 83 72 84 71 83 71 83
TEMP 83 76 73 79 83 75 73 79 83 75 72 78 83 74 71 78 82 75
DEWPT 74 73 72 74 72 72 72 72 70 71 71 72 71 72 71 72 68 69
PWIND DIR E E E E E E E E E
WIND CHAR GN LT GN LT GN LT GN LT GN
AVG CLOUDS SC SC FW FW FW FW CL FW FW FW SC FW FW SC FW FW SC SC
POP 12HR 30 0 0 0 10 10 30 5 30
RAIN SHWRS SC SC IS IS IS IS IS IS IS IS IS IS
TSTMS IS IS
PRZ007-080800-
PONCE AND VICINITY-
INCLUDING THE CITIES OF GUAYANILLA, JUANA DIAZ, YAUCO, PENUELAS,
PONCE, AND SANTA ISABEL
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 65 76 82 74 88 93 66 75 82 76 86 92 66 76 82
TEMP 83 80 78 77 76 83 87 88 82 79 77 76 76 81 85 86 82 79 77 76 76 82
DEWPT 75 75 74 73 73 72 73 73 74 73 72 71 71 72 73 73 74 73 72 72 72 73
RH 77 85 88 87 90 70 63 61 77 82 85 85 85 74 67 65 77 82 85 87 87 74
WIND DIR SE E E E E E E SE E E E E E E E E E E NE E E E
WIND SPD 8 5 6 5 6 8 14 13 12 8 8 5 4 6 14 13 12 8 5 5 5 8
WIND GUST 19 16 17 20 32 28 26 21 19 17 16 19 31 28 28 20 16 17 16 20
CLOUDS B1 FW SC FW SC CL FW FW SC CL CL FW SC FW FW SC SC FW FW FW FW FW
POP 12HR 20 20 10 30 5
QPF 12HR 0.01-0.09 0.00-0.29 0.01-0.09 0.08-0.37 0.00-0.16
SNOW 12HR MM MM MM
RAIN SHWRS SC IS IS IS IS IS SC IS IS IS IS SC SC IS IS IS IS IS
TSTMS IS
HEAT INDEX 90 84 80 88 94 96 88 82 86 92 93 87 81 87
MAX HEAT 105 93 94 106 105 91 92 101 100 91 93
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 86 76 87 75 88 74 86 74 87
TEMP 86 79 76 82 86 78 76 82 87 78 75 81 86 77 74 81 87 78
DEWPT 73 73 73 73 73 73 71 71 71 72 71 70 72 72 71 71 70 71
PWIND DIR E E E E E NE E E E
WIND CHAR GN LT GN LT GN LT GN LT GN
AVG CLOUDS SC SC FW FW FW FW CL FW FW FW FW FW FW SC SC FW SC SC
POP 12HR 30 0 5 0 5 5 20 10 40
RAIN SHWRS SC SC IS IS IS IS IS IS IS IS IS IS
TSTMS IS IS IS
PRZ008-080800-
NORTHWEST-
INCLUDING THE CITIES OF AGUADILLA, CAMUY, HATILLO, ISABELA,
AND QUEBRADILLAS
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 71 74 82 84 87 92 70 74 82 83 86 90 72 75 82
TEMP 83 79 77 75 74 82 86 87 82 78 76 74 74 81 85 86 81 78 76 75 75 81
DEWPT 78 77 76 75 74 76 77 78 77 76 75 74 73 75 77 77 77 76 75 75 75 76
RH 85 94 97100100 82 75 75 85 94 97100 97 82 77 75 88 94 97100100 85
WIND DIR E SE SE E SE E E E E E E E E E E E E E E E E E
WIND SPD 3 2 4 4 4 8 11 16 14 11 11 8 8 10 13 18 17 12 11 11 10 11
WIND GUST 21 28 28 21 20 29 29 24 24 23 21
CLOUDS OV B1 FW FW FW CL FW SC B1 SC FW FW FW FW FW B2 B2 FW FW FW FW FW
POP 12HR 40 40 10 60 5
QPF 12HR 0.03-0.08 0.04-0.56 0.02 0.39-0.66 0.02
SNOW 12HR MM MM MM
RAIN SHWRS D SC IS SC SC IS IS NM NM IS IS IS IS IS
TSTMS IS IS IS IS
HEAT INDEX 92 81 89 98100 90 80 87 96 97 88 88
MAX HEAT 110 93 96 110 109 92 94 106 105 92 95
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 86 75 88 73 89 73 86 73 87
TEMP 86 78 76 82 88 78 74 83 89 78 74 81 86 77 74 81 86 78
DEWPT 78 76 75 76 77 76 73 74 75 75 73 74 75 75 73 74 73 73
PWIND DIR E E E E E E E E E
WIND CHAR GN GN GN GN BZ GN BZ GN GN
AVG CLOUDS SC B1 FW FW FW SC CL CL FW SC CL CL FW SC SC SC SC SC
POP 12HR 60 0 40 0 40 0 30 20 40
RAIN SHWRS NM NM IS IS SC SC SC SC SC IS IS IS SC SC
TSTMS IS IS IS IS IS IS IS
PRZ009-080800-
WESTERN INTERIOR-
INCLUDING THE CITIES OF ADJUNTAS, LARES, LAS MARIAS, MARICAO,
SABANA GRANDE, SAN SEBASTIAN, AND UTUADO
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 66 72 77 74 85 92 66 72 76 77 84 90 66 72 76
TEMP 80 76 74 73 72 80 84 85 79 76 74 72 72 79 83 83 79 76 74 72 72 79
DEWPT 75 74 73 72 71 73 74 75 75 73 72 71 71 73 75 74 74 73 73 72 72 73
RH 85 94 97 97 97 79 72 72 88 90 93 97 97 82 77 74 85 90 97100100 82
WIND DIR SE SE SE E E E E E E E E E E E E E E E E E E E
WIND SPD 3 3 4 4 4 5 8 8 5 5 5 4 4 5 9 9 8 5 5 4 4 5
WIND GUST 18 16 16 17 29 27 23 20 17 29 29 26 20
CLOUDS B2 SC FW FW FW CL FW B1 B1 FW CL CL FW FW FW B2 B2 CL CL CL CL FW
POP 12HR 10 50 10 60 0
QPF 12HR 0.01-0.06 0.03-0.77 0.01 0.12-0.66 0.01
SNOW 12HR MM MM MM
RAIN SHWRS NM IS IS IS IS SC SC IS IS IS NM NM
TSTMS IS IS IS IS IS
HEAT INDEX 85 83 91 93 83 81 89 91 81 82
MAX HEAT 110 87 95 111 109 84 91 106 104 93
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 84 73 84 71 86 70 84 70 84
TEMP 84 76 73 79 84 75 72 80 85 75 71 78 83 74 71 78 83 75
DEWPT 75 73 72 73 73 73 71 71 71 72 70 71 72 72 70 72 70 70
PWIND DIR E E E E E E E E E
WIND CHAR LT LT LT LT GN LT GN LT LT
AVG CLOUDS SC B1 FW FW FW SC CL CL FW SC CL CL SC B1 SC SC SC B1
POP 12HR 60 0 30 0 30 0 60 20 60
RAIN SHWRS NM NM SC SC SC SC NM IS IS IS NM IS
TSTMS IS IS IS IS IS IS IS IS
PRZ010-080800-
MAYAGUEZ AND VICINITY-
INCLUDING THE CITIES OF AGUADA, ANASCO, HORMIGUEROS, MAYAGUEZ,
MOCA, RINCON, AND SAN GERMAN
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 68 75 82 77 90 93 68 75 82 78 88 90 68 75 82
TEMP 84 80 78 76 76 84 89 90 83 79 77 75 75 82 86 87 82 79 77 75 75 83
DEWPT 78 77 76 75 74 76 78 78 78 77 75 74 73 75 78 78 78 77 75 74 74 76
RH 82 91 94 97 94 77 70 68 85 94 94 97 94 79 77 75 88 94 94 97 97 80
WIND DIR E E E E E E E SE E E E E E E E E E E E E E E
WIND SPD 5 5 6 6 6 8 6 8 5 10 10 8 6 8 8 10 9 8 9 9 8 8
WIND GUST 16 20 21 20 21 23 21 21 20 26 24 21 18 21 24 24 18 21 24 21
CLOUDS B2 SC FW FW FW CL FW B1 B1 SC CL CL FW CL CL B2 B2 FW FW CL CL CL
POP 12HR 20 60 10 60 5
QPF 12HR 0.00-0.07 0.01-0.91 0.00-0.07 0.05-0.67 0.00-0.05
SNOW 12HR MM MM MM
RAIN SHWRS NM IS IS SC NM IS NM NM IS IS
TSTMS IS IS IS IS IS
HEAT INDEX 95 85 93102105 94 83 89 99100 91 81 91
MAX HEAT 113 93 100 114 112 93 95 110 108 93 99
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 89 75 90 74 91 73 89 73 89
TEMP 89 79 76 84 90 79 75 84 91 79 74 82 89 78 74 83 89 79
DEWPT 78 77 75 76 77 76 73 74 76 75 73 74 76 75 73 74 72 73
PWIND DIR E E E E E E E E E
WIND CHAR GN GN GN GN GN GN GN GN LT
AVG CLOUDS SC B1 FW FW FW SC CL CL FW SC CL CL SC B1 SC SC SC B1
POP 12HR 60 5 40 0 40 0 60 20 60
RAIN SHWRS NM NM IS IS SC SC SC SC SC IS IS IS NM NM
TSTMS IS IS IS IS IS IS IS IS
PRZ011-080800-
SOUTHWEST-
INCLUDING THE CITIES OF CABO ROJO, GUANICA, AND LAJAS
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 74 76 82 85 91 92 73 75 82 88 73 76 82
TEMP 85 81 79 77 77 85 90 91 84 80 78 76 75 83 87 88 83 79 78 76 76 84
DEWPT 77 77 76 75 74 75 75 76 76 76 74 72 71 72 75 76 76 76 74 73 73 74
RH 77 88 91 94 90 72 62 62 77 88 88 87 87 70 68 68 80 91 88 90 90 72
WIND DIR SE E E E E E SE SE E E E E E E E E E E E E E E
WIND SPD 12 11 11 10 9 12 17 17 13 14 12 9 5 6 18 18 17 13 6 5 5 9
WIND GUST 25 24 23 23 21 25 34 34 28 31 28 21 18 34 35 36 27 17 16 20
CLOUDS SC CL FW FW SC CL CL SC SC CL CL FW FW CL CL SC SC FW FW CL CL CL
POP 12HR 10 20 5 20 0
QPF 12HR 0.01 0.02-0.55 0.01 0.06-0.38 0
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS IS IS IS IS
TSTMS IS
HEAT INDEX 96 88 81 93101103 94 84 88 97 99 91 83 91
MAX HEAT 111 93 96 111 110 92 92 106 105 92 93
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 90 76 91 75 92 74 90 74 91
TEMP 90 80 77 85 91 80 76 85 92 80 75 83 90 79 75 84 91 80
DEWPT 76 76 75 75 76 76 72 73 73 75 72 72 75 75 73 72 72 73
PWIND DIR E E E E E E E E E
WIND CHAR BZ GN BZ GN GN LT BZ LT GN
AVG CLOUDS FW SC CL CL FW FW CL CL FW FW FW FW FW SC SC SC SC B1
POP 12HR 30 0 5 0 5 0 30 20 40
RAIN SHWRS SC SC IS IS IS IS SC IS IS IS SC IS
TSTMS IS IS IS
PRZ012-080800-
CULEBRA-
INCLUDING THE CITY OF CULEBRA
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 81 85 89 92 81 87 81
TEMP 86 84 82 81 81 86 88 89 85 83 82 81 81 84 86 87 84 82 82 81 81 85
DEWPT 79 78 78 78 77 78 78 78 78 77 77 77 77 78 78 78 79 78 78 78 78 78
RH 80 82 88 91 88 77 72 70 80 82 85 88 88 82 77 75 85 88 88 91 91 80
WIND DIR SE SE E E E E E E E E E E E E E E E E E E E E
WIND SPD 14 16 17 18 17 18 18 17 19 19 19 19 20 21 21 20 18 20 21 21 23 23
CLOUDS B2 SC SC B1 B1 B1 B1 SC SC SC SC B1 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1
POP 12HR 50 40 60 60 50
QPF 12HR 0.19 0.12 0.21 0.32 0.28
SNOW 12HR MM MM MM
RAIN SHWRS NM IS IS SC SC SC SC SC SC IS SC SC NM NM NM SC SC SC SC SC SC SC
TSTMS IS IS IS IS IS
HEAT INDEX 99 94 92 90 89 97101102 97 92 90 88 88 95 98100 96 91 90 88 88 97
MAX HEAT 107 95 99 105 104 94 97 102 102 94 99
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 89 80 90 80 90 81 90 79 90
TEMP 89 83 81 86 90 83 81 86 90 84 81 86 90 83 80 86 90 84
DEWPT 79 78 78 78 77 77 76 76 76 76 76 76 76 76 76 76 74 73
PWIND DIR E E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC FW FW SC B1
POP 12HR 50 20 10 10 30 30 40 20 40
RAIN SHWRS SC SC IS IS IS IS IS IS IS IS SC IS SC SC IS SC SC
TSTMS IS IS IS IS
PRZ013-080800-
VIEQUES-
INCLUDING THE CITY OF VIEQUES
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 81 85 89 91 80 87 79
TEMP 86 83 82 81 81 85 88 89 85 83 81 81 80 84 86 86 84 82 81 80 80 85
DEWPT 76 76 76 76 76 76 76 75 76 75 76 76 76 77 76 76 76 76 76 76 77 77
RH 72 80 82 85 85 75 68 64 75 77 85 85 88 80 72 72 77 82 85 88 91 77
WIND DIR SE SE SE E E E E E E E E E E E E E E E E E E E
WIND SPD 13 13 16 18 17 18 18 16 18 18 19 19 19 20 20 20 18 19 20 21 21 23
CLOUDS OV B1 SC B1 B1 B2 B2 SC SC SC B1 SC B2 B2 B2 B1 B1 B1 B1 B2 B2 B2
POP 12HR 50 50 60 60 60
QPF 12HR 0.22-0.29 0.13 0.21 0.31-0.46 0.29-0.38
SNOW 12HR MM MM MM
RAIN SHWRS NM SC IS SC SC SC SC IS IS SC SC SC NM NM NM SC SC SC SC SC SC NM
TSTMS IS IS IS IS IS IS
HEAT INDEX 96 92 89 87 87 95 99 99 94 90 88 86 85 93 96 96 92 89 87 85 85 95
MAX HEAT 104 93 98 102 101 92 95 99 99 92 97
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 89 79 90 79 90 80 90 79 90
TEMP 89 82 80 86 90 83 80 86 90 83 81 86 90 82 79 85 90 83
DEWPT 76 76 76 76 75 75 75 75 74 75 75 75 74 74 75 75 74 74
PWIND DIR E E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS B2 B1 SC SC SC SC SC SC SC SC SC SC SC SC FW FW SC B1
POP 12HR 60 20 20 10 30 30 30 20 40
RAIN SHWRS SC SC IS IS IS IS IS IS IS SC SC SC SC SC IS SC SC
TSTMS IS IS IS
VIZ001-080800-
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 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 76 80 82 85 88 92 80 86 80
TEMP 85 83 81 80 80 85 87 88 85 83 81 81 80 84 86 86 84 82 81 80 80 85
DEWPT 76 77 77 77 76 77 76 75 76 76 76 76 77 77 76 76 77 77 77 77 77 77
RH 75 82 88 91 88 77 70 66 75 80 85 85 91 80 72 72 80 85 88 91 91 77
WIND DIR SE SE E E E E E E E E E E E E E E E E E E E E
WIND SPD 17 17 19 19 18 20 18 18 20 19 20 21 20 21 23 20 19 20 21 23 23 24
CLOUDS B1 SC SC B1 B1 B1 B1 SC SC SC SC B1 B2 B2 B2 SC SC SC SC B1 B1 B1
POP 12HR 40 30 60 60 40
QPF 12HR 0.12 0.08 0.21 0.16-0.25 0.20
SNOW 12HR MM MM MM
RAIN SHWRS SC IS IS SC SC SC SC IS IS IS SC SC NM NM NM IS IS IS IS SC SC SC
TSTMS IS IS IS IS
HEAT INDEX 95 91 88 86 86 94 97 98 94 90 89 87 87 93 96 96 93 90 88 87 87 96
MAX HEAT 106 93 99 105 104 93 97 101 101 93 99
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 88 80 89 80 89 79 89 79 89
TEMP 88 83 81 86 89 83 81 85 89 82 80 85 89 82 80 85 89 83
DEWPT 76 77 77 76 75 76 75 75 74 75 75 75 74 75 75 75 73 71
PWIND DIR E E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS B1 SC SC SC FW FW FW FW SC SC SC SC SC SC FW FW SC SC
POP 12HR 40 20 10 10 20 20 20 20 30
RAIN SHWRS SC IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS SC
VIZ002-080800-
ST CROIX-
INCLUDING THE CITIES OF CHRISTIANSTED, FREDERIKSTED,
FREDERIKSTED SOUTHEAST, AND GROVE PLACE
231 PM AST MON SEP 7 2026
DATE 09/07/26 TUE 09/08/26 WED 09/09/26 THU
AST 3HRLY 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 80 85 89 92 80 87 81
TEMP 86 83 82 80 80 85 88 89 85 83 81 80 80 84 86 87 84 83 82 81 81 86
DEWPT 77 77 78 77 77 77 77 76 76 77 77 77 77 77 77 77 77 77 78 77 77 78
RH 75 82 88 91 91 77 70 66 75 82 88 91 91 80 75 72 80 82 88 88 88 77
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 13 13 16 17 16 19 16 17 17 17 18 18 18 20 20 20 18 18 19 20 20 21
WIND GUST 28 31
CLOUDS B2 SC SC SC SC SC SC FW FW SC SC B2 B2 B2 B2 SC SC B1 B1 B1 B1 SC
POP 12HR 30 30 60 60 40
QPF 12HR 0.08 0.07 0.21 0.16-0.23 0.22
SNOW 12HR MM MM MM
RAIN SHWRS SC IS IS IS IS SC SC IS IS IS SC SC NM NM NM IS IS SC SC SC SC SC
TSTMS IS IS IS IS
HEAT INDEX 96 92 90 87 86 95100100 95 91 89 87 87 94 98 98 94 91 90 89 89 97
MAX HEAT 108 94 100 106 105 94 97 103 102 93 99
DATE 09/10 FRI 09/11/26 SAT 09/12/26 SUN 09/13/26 MON 09/14/26
AST 6HRLY 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 89 80 90 80 90 79 90 78 90
TEMP 89 82 80 86 90 83 80 86 90 82 80 85 90 82 79 85 90 83
DEWPT 77 77 77 77 76 76 76 76 75 76 76 76 75 76 76 76 73 72
PWIND DIR E E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ GN
AVG CLOUDS SC SC SC SC FW FW FW FW SC SC SC SC SC SC SC SC SC SC
POP 12HR 30 20 10 10 20 20 20 30 30
RAIN SHWRS SC SC IS IS IS IS IS IS IS IS IS IS IS IS SC SC IS
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