429
FOCA52 TJSJ 260631
AFMSJU
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN JUAN PR
231 AM AST SUN JUL 26 2026
PRZ001-262000-
SAN JUAN AND VICINITY-
INCLUDING THE CITIES OF BAYAMON, CAROLINA, CATANO, GUAYNABO,
SAN JUAN, TOA ALTA, TOA BAJA, AND TRUJILLO ALTO
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 89 92 72 76 82 83 90 93 72 77 82 83 91 93
TEMP 79 84 88 89 86 81 79 77 78 84 89 90 86 81 79 77 79 85 90 91 87 82
DEWPT 75 77 77 77 76 76 76 75 74 76 76 77 76 76 75 75 75 77 77 78 77 76
RH 88 80 70 68 72 85 91 94 88 77 66 66 72 85 88 94 88 77 66 66 72 82
WIND DIR E E E E E E E E SE E E E E E E E E E E E E E
WIND SPD 8 10 11 14 13 9 6 4 5 8 11 14 11 8 6 5 5 9 13 17 13 9
WIND GUST 25 25 25 27
CLOUDS SC B1 B1 B2 B2 SC SC SC SC B2 OV B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC
POP 12HR 70 60 70 50 50
QPF 12HR 0.31-0.52 0.08-0.22 0.44-0.72 0.08-0.21 0.14-0.36
SNOW 12HR MM MM MM
RAIN SHWRS IS SC SC NM SC IS SC IS SC NM NM SC SC SC SC SC SC SC SC SC SC IS
TSTMS IS IS IS IS IS IS IS IS IS IS IS IS IS IS
HEAT INDEX 82 94100101 96 86 81 80 93100103 97 88 82 81 95102105 99 90
MAX HEAT 98 107 106 92 97 111 108 92 100 113 111
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 89 78 90 78 89 77 89
TEMP 78 84 89 82 79 85 90 82 78 84 89 81 78 84 89 81
DEWPT 76 77 77 77 76 76 76 76 75 76 76 76 75 76 76 76
PWIND DIR E E E E E E E E
WIND CHAR LT BZ GN GN GN GN GN GN
AVG CLOUDS SC SC SC SC FW FW SC FW FW FW FW FW CL FW FW FW
POP 12HR 30 30 10 10 0 10 20 20
RAIN SHWRS IS IS SC SC IS IS IS IS IS IS IS IS IS
PRZ002-262000-
NORTHEAST-
INCLUDING THE CITIES OF CEIBA, CANOVANAS, FAJARDO, HUMACAO,
LOIZA, LUQUILLO, NAGUABO, AND RIO GRANDE
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 87 92 65 76 82 75 88 93 66 77 82 75 89 93
TEMP 79 83 86 87 85 80 78 77 78 83 87 88 85 81 79 77 78 84 88 89 86 81
DEWPT 75 75 75 75 75 75 75 74 74 75 75 75 75 75 75 74 74 75 75 76 76 75
RH 88 77 70 68 72 85 91 90 88 77 68 66 72 82 88 90 88 74 66 66 72 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 10 11 11 13 12 9 8 6 8 9 10 11 10 8 9 8 8 11 13 14 12 10
WIND GUST 20 24 26
CLOUDS SC B1 B1 B2 B2 B1 B1 B1 B1 OV OV B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 SC
POP 12HR 60 70 70 50 50
QPF 12HR 0.23-0.52 0.17-0.33 0.34-0.75 0.11-0.21 0.21-0.36
SNOW 12HR MM MM MM
RAIN SHWRS SC SC SC NM NM SC SC SC SC NM NM SC SC SC SC SC SC SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS
HEAT INDEX 82 91 96 97 93 85 81 80 90 96 98 93 86 82 81 92 97100 95 87
MAX HEAT 98 106 105 92 98 108 106 92 99 109 107
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 78 88 78 87 77 87
TEMP 78 83 87 81 78 84 88 81 78 83 87 80 78 83 87 80
DEWPT 75 76 76 76 75 75 75 75 74 75 75 75 74 75 75 75
PWIND DIR E E E E E E E E
WIND CHAR GN BZ GN GN GN GN GN GN
AVG CLOUDS SC B1 B1 SC SC SC SC SC SC SC SC SC FW FW SC FW
POP 12HR 50 50 20 20 20 20 30 30
RAIN SHWRS SC SC SC IS IS IS IS IS IS IS IS IS IS SC SC
PRZ003-262000-
SOUTHEAST-
INCLUDING THE CITIES OF ARROYO, GUAYAMA, MAUNABO, PATILLAS,
SALINAS, AND YABUCOA
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 92 68 76 82 77 88 93 68 76 82 77 88 93
TEMP 78 83 86 87 85 80 78 76 77 83 87 88 85 80 78 77 78 83 87 88 85 81
DEWPT 74 74 74 74 74 74 74 73 73 74 74 74 74 74 74 74 74 75 75 75 75 75
RH 88 74 68 65 70 82 88 90 87 74 65 63 70 82 88 90 88 77 68 66 72 82
WIND DIR NE E E E E E E E NE E E E E E E E E E E SE E E
WIND SPD 8 9 12 14 12 8 8 6 6 8 10 10 9 5 6 6 6 10 12 13 12 8
WIND GUST 18 25 31 26 21 23 25 26 25
CLOUDS SC SC SC B1 B2 SC SC SC B1 B1 B1 SC SC B1 B1 B1 B1 B1 B1 B1 B1 SC
POP 12HR 60 50 50 40 40
QPF 12HR 0.07-0.32 0.04-0.23 0.07-0.36 0.03-0.13 0.05-0.25
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS SC SC IS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC IS
TSTMS IS IS IS IS IS IS IS
HEAT INDEX 81 90 95 96 92 84 80 89 94 96 92 84 81 80 90 96 98 93 86
MAX HEAT 97 103 102 90 96 104 102 90 97 105 104
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 78 88 77 87 76 87
TEMP 77 83 87 81 78 84 88 81 77 83 87 80 77 83 87 80
DEWPT 74 75 76 75 75 74 74 74 74 74 74 74 73 74 74 74
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 SC SC SC FW FW FW FW SC FW CL FW SC FW
POP 12HR 40 40 10 5 20 20 20 20
RAIN SHWRS IS IS SC IS IS IS IS IS IS IS IS IS IS IS IS
PRZ004-262000-
EASTERN INTERIOR-
INCLUDING THE CITIES OF AGUAS BUENAS, CAGUAS, CAYEY, CIDRA,
COMERIO, GURABO, JUNCOS, LAS PIEDRAS, AND SAN LORENZO
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 92 68 73 77 75 87 93 68 73 77 76 88 93
TEMP 76 81 85 86 83 77 75 74 75 81 86 87 83 78 76 74 75 82 86 88 84 79
DEWPT 73 75 74 74 74 74 73 73 72 74 74 74 74 73 73 73 73 75 74 75 74 74
RH 90 82 70 68 74 90 94 97 90 79 68 65 74 85 90 97 94 79 68 66 72 85
WIND DIR E E E E E E E E E E SE E E E E E E E E SE E E
WIND SPD 4 6 9 12 11 5 3 3 3 5 9 11 9 4 4 4 4 8 12 13 12 6
CLOUDS SC B1 B1 B2 B2 SC SC SC SC B1 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC
POP 12HR 60 40 70 50 50
QPF 12HR 0.14-0.52 0.05-0.27 0.13-0.73 0.05-0.20 0.08-0.36
SNOW 12HR MM MM MM
RAIN SHWRS IS SC SC SC NM IS SC IS SC SC NM NM NM SC SC SC SC SC SC SC SC IS
TSTMS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS
HEAT INDEX 87 93 95 89 86 93 95 90 80 88 95 97 91 81
MAX HEAT 97 104 103 87 96 105 103 88 97 106 104
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 86 75 87 74 86 73 86
TEMP 75 81 86 78 75 82 87 78 75 81 86 78 74 81 86 78
DEWPT 73 75 75 74 74 75 74 74 73 74 74 73 73 74 74 73
PWIND DIR E E E E E E E E
WIND CHAR LT GN GN GN LT GN LT GN
AVG CLOUDS SC SC B1 SC FW FW FW FW FW FW SC FW CL FW SC FW
POP 12HR 40 40 5 10 20 20 20 20
RAIN SHWRS IS IS SC IS IS IS IS IS IS IS IS IS IS IS
PRZ005-262000-
NORTH CENTRAL-
INCLUDING THE CITIES OF ARECIBO, BARCELONETA, DORADO, FLORIDA,
MANATI, VEGA ALTA, AND VEGA BAJA
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 92 72 75 82 84 90 93 72 75 82 84 91 93
TEMP 78 84 89 90 86 80 77 76 77 84 89 90 86 80 78 76 77 85 90 91 87 81
DEWPT 74 77 78 78 77 76 75 74 73 76 77 79 78 77 75 74 74 77 78 79 78 77
RH 88 80 70 68 75 88 94 94 87 77 68 70 77 91 91 94 90 77 68 68 75 88
WIND DIR E E E NE E E E E SE E E E E E E SE SE E E E E E
WIND SPD 8 10 13 17 17 11 8 4 5 9 12 12 6 4 5 5 5 6 12 16 9 9
WIND GUST 24 31 32 21 23 25 17 29 21
CLOUDS SC B1 SC B2 B1 FW SC SC SC B1 B2 B2 B2 SC SC SC SC SC SC B1 B1 FW
POP 12HR 50 30 60 30 40
QPF 12HR 0.14-0.51 0.04-0.12 0.52-1.13 0.03-0.11 0.08-0.55
SNOW 12HR MM MM MM
RAIN SHWRS IS SC IS SC SC IS IS IS IS SC SC NM NM SC SC SC SC SC SC SC SC IS
TSTMS IS IS IS IS IS IS IS IS
HEAT INDEX 94102104 98 85 93102107 98 86 95104108100 88
MAX HEAT 100 111 110 92 99 116 113 92 101 116 113
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 77 91 76 89 75 90
TEMP 77 84 90 81 77 85 91 81 77 84 89 80 76 84 90 80
DEWPT 75 77 78 76 75 76 77 76 75 76 77 76 74 76 78 76
PWIND DIR E E E E E E E E
WIND CHAR LT GN GN BZ GN BZ GN GN
AVG CLOUDS FW FW SC SC CL FW FW FW CL CL FW SC CL FW FW FW
POP 12HR 5 40 0 10 0 10 5 5
RAIN SHWRS IS IS IS SC IS IS IS IS IS IS
TSTMS IS IS
PRZ006-262000-
CENTRAL INTERIOR-
INCLUDING THE CITIES OF AIBONITO, BARRANQUITAS, CIALES, COAMO,
COROZAL, JAYUYA, MOROVIS, NARANJITO, OROCOVIS, AND VILLALBA
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 92 63 72 76 75 85 92 63 72 76 75 85 93
TEMP 74 80 84 85 82 76 74 72 73 79 83 85 81 76 74 72 73 80 84 85 82 77
DEWPT 72 73 73 73 73 72 72 71 71 73 73 74 73 73 72 71 71 73 74 74 73 73
RH 93 79 70 67 74 87 93 97 93 82 72 70 77 90 93 97 93 79 72 70 74 87
WIND DIR E E E E E E E E E E SE E SE E E E E E E SE SE E
WIND SPD 3 5 9 11 10 5 3 2 3 5 9 9 6 3 3 3 3 5 10 11 9 5
WIND GUST 24 29 25 21 23 24 25 24
CLOUDS SC SC SC B2 B2 FW FW SC SC SC B1 B2 B2 SC SC SC SC SC SC B1 B1 FW
POP 12HR 50 10 60 10 30
QPF 12HR 0.10-0.51 0.03-0.10 0.09-1.02 0.01-0.12 0.04-0.26
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS SC SC IS IS IS IS IS SC NM NM IS IS IS IS IS IS SC SC IS
TSTMS IS IS IS IS IS
HEAT INDEX 83 90 91 86 82 89 91 86 83 90 92 87
MAX HEAT 96 105 104 86 95 107 105 86 97 108 106
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 84 73 85 73 84 72 84
TEMP 73 79 84 77 73 80 85 77 73 80 84 76 73 80 84 76
DEWPT 72 74 74 73 72 73 72 72 71 72 72 72 71 72 73 72
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 FW FW CL FW FW SC CL FW FW FW
POP 12HR 5 20 0 10 0 20 10 10
RAIN SHWRS IS IS IS IS IS IS IS IS IS IS
PRZ007-262000-
PONCE AND VICINITY-
INCLUDING THE CITIES OF GUAYANILLA, JUANA DIAZ, YAUCO, PENUELAS,
PONCE, AND SANTA ISABEL
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 92 62 75 82 75 88 93 62 75 82 75 88 93
TEMP 77 83 87 88 85 79 77 75 76 82 87 88 85 79 77 75 77 83 87 88 85 80
DEWPT 71 71 73 74 74 73 72 71 71 72 73 74 74 73 72 71 71 73 74 75 74 74
RH 82 67 63 63 70 82 85 87 85 72 63 63 70 82 85 87 82 72 65 66 70 82
WIND DIR NE E SE SE SE E E NE E E SE SE SE E E NE E E SE SE SE E
WIND SPD 4 5 12 14 11 8 4 3 3 5 11 10 8 4 5 4 4 5 11 11 11 9
WIND GUST 26 33 29 24 23 25 26 25 21
CLOUDS FW FW SC B1 B1 SC FW FW FW FW SC SC SC FW FW FW FW FW FW SC SC FW
POP 12HR 30 10 30 5 20
QPF 12HR 0.06-0.53 0.03 0.06-0.66 0.01 0.04-0.28
SNOW 12HR MM MM MM
RAIN SHWRS IS SC SC IS IS IS IS IS IS SC SC IS IS IS IS IS IS SC SC
TSTMS IS IS IS IS
HEAT INDEX 88 94 97 92 83 87 93 96 91 83 88 95 97 92 84
MAX HEAT 94 105 104 90 95 105 103 91 96 107 105
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 88 75 88
TEMP 76 83 88 80 77 84 89 80 77 83 88 80 76 83 88 79
DEWPT 72 73 74 73 72 72 72 72 71 71 73 73 71 71 73 73
PWIND DIR E E E E E E E E
WIND CHAR LT GN GN GN LT GN LT GN
AVG CLOUDS FW FW SC SC FW FW FW FW CL FW FW FW CL FW FW CL
POP 12HR 5 30 0 5 10 10 5 5
RAIN SHWRS SC SC IS IS IS IS IS IS
PRZ008-262000-
NORTHWEST-
INCLUDING THE CITIES OF AGUADILLA, CAMUY, HATILLO, ISABELA,
AND QUEBRADILLAS
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 88 92 70 73 82 84 88 93 70 73 82 84 89 93
TEMP 76 83 87 88 85 78 76 74 75 82 87 88 85 78 76 74 75 83 88 89 85 79
DEWPT 73 75 76 77 77 76 75 73 73 75 76 78 76 76 75 73 72 75 76 79 77 77
RH 90 77 70 70 77 94 97 97 94 79 70 72 75 94 97 97 90 77 68 73 77 94
WIND DIR E E E NE E E E E E E NE NE E E E E E E E NE E E
WIND SPD 10 11 12 14 11 11 6 5 8 10 10 6 3 2 4 4 5 5 8 9 3 3
WIND GUST 20 21 24 31 28 21 17 19 24
CLOUDS SC SC SC B2 B2 SC FW SC SC SC FW OV OV B2 B2 B2 B2 FW FW B2 B2 CL
POP 12HR 60 20 80 50 60
QPF 12HR 0.19-0.76 0.05-0.15 0.85-1.17 0.06-0.23 0.26-0.75
SNOW 12HR MM MM MM
RAIN SHWRS IS SC IS SC NM IS IS IS IS IS NM NM SC SC SC SC NM NM
TSTMS IS IS IS IS IS IS IS IS IS IS
HEAT INDEX 90 98101 94 80 89 97102 94 80 90 99104 96 83
MAX HEAT 96 108 107 91 96 111 108 91 96 112 110
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 89 75 90 75 88 74 88
TEMP 75 83 89 79 76 84 90 80 76 83 88 79 75 82 88 78
DEWPT 74 76 77 76 74 75 76 76 74 75 76 76 74 74 77 76
PWIND DIR E E E E E E E E
WIND CHAR LT GN GN BZ GN BZ GN GN
AVG CLOUDS CL FW SC B1 CL CL FW SC CL CL SC SC CL FW FW SC
POP 12HR 5 60 0 30 0 50 0 40
RAIN SHWRS NM NM SC SC SC SC SC SC
TSTMS IS IS IS IS IS IS
PRZ009-262000-
WESTERN INTERIOR-
INCLUDING THE CITIES OF ADJUNTAS, LARES, LAS MARIAS, MARICAO,
SABANA GRANDE, SAN SEBASTIAN, AND UTUADO
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 92 65 71 76 75 85 93 65 71 76 75 86 93
TEMP 74 80 85 86 82 76 74 72 73 80 84 85 82 76 74 72 73 80 84 86 82 77
DEWPT 71 73 74 75 75 74 73 71 70 73 74 76 74 73 73 71 70 73 75 76 75 74
RH 90 79 70 70 79 94 97 97 90 79 72 75 77 90 97 97 90 79 74 72 79 90
WIND DIR E E E E E E E E E E E E E E E E E E E E SE E
WIND SPD 4 5 5 5 4 4 3 3 4 4 5 3 3 2 3 3 3 4 5 4 5 4
WIND GUST 24 26 20 23 20 25 24 23 20
CLOUDS FW SC SC OV OV SC FW FW FW FW SC OV OV SC SC SC SC FW FW B2 B2 CL
POP 12HR 80 20 80 20 60
QPF 12HR 0.16-0.76 0.02-0.14 0.14-1.18 0.01-0.18 0.09-0.74
SNOW 12HR MM MM MM
RAIN SHWRS IS IS NM D IS IS D D IS IS IS IS NM NM
TSTMS IS IS IS IS IS IS
HEAT INDEX 84 92 94 88 83 91 94 87 84 92 96 89
MAX HEAT 94 108 107 85 94 112 109 85 94 113 110
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 85 73 87 73 85 72 85
TEMP 73 80 85 77 73 81 87 77 73 80 85 76 73 80 85 76
DEWPT 72 74 75 73 72 72 73 73 71 72 74 73 71 72 75 73
PWIND DIR E E E E E E E E
WIND CHAR LT LT LT GN LT LT LT LT
AVG CLOUDS CL FW SC SC CL CL FW SC CL FW FW SC CL FW FW FW
POP 12HR 5 50 0 40 0 40 0 5
RAIN SHWRS SC SC SC SC SC SC SC
TSTMS IS IS IS IS IS IS
PRZ010-262000-
MAYAGUEZ AND VICINITY-
INCLUDING THE CITIES OF AGUADA, ANASCO, HORMIGUEROS, MAYAGUEZ,
MOCA, RINCON, AND SAN GERMAN
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 90 92 67 74 82 76 90 93 68 75 82 77 91 93
TEMP 77 84 89 90 86 80 77 75 76 84 89 90 86 80 77 75 77 84 89 91 87 80
DEWPT 73 75 77 78 77 76 76 74 73 75 77 79 77 76 76 74 73 75 77 79 78 77
RH 87 74 68 68 75 88 97 97 90 74 68 70 75 88 97 97 87 74 68 68 75 91
WIND DIR E E E E E E E E E E SE E E E E E E E E E E E
WIND SPD 6 6 5 6 5 6 4 5 8 6 5 4 3 4 4 5 5 5 5 6 5 6
WIND GUST 20 18 16 19 19 19 19 20 17 19 18 19 20 18 20 21 20
CLOUDS FW FW SC OV B2 B1 FW FW FW FW FW B2 B2 B1 B1 B1 B1 FW FW B2 B2 FW
POP 12HR 80 40 70 50 60
QPF 12HR 0.09-0.78 0.02-0.18 0.02-1.14 0.03-0.24 0.01-0.75
SNOW 12HR MM MM MM
RAIN SHWRS IS SC D D SC D D SC SC SC SC NM NM
TSTMS IS IS IS IS IS IS IS IS IS IS IS
HEAT INDEX 92101104 97 84 92101106 97 85 93103108 99 86
MAX HEAT 96 110 109 91 97 114 110 91 98 115 112
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 90 76 91 76 90 75 90
TEMP 76 84 90 81 76 85 91 81 76 84 90 80 76 84 90 80
DEWPT 75 76 78 77 74 75 77 76 74 75 77 76 74 75 77 76
PWIND DIR E E E E E E E E
WIND CHAR LT GN GN GN GN GN LT LT
AVG CLOUDS FW FW SC SC FW FW FW SC FW FW FW SC CL CL FW SC
POP 12HR 5 50 0 40 0 50 0 40
RAIN SHWRS SC SC SC SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS IS
PRZ011-262000-
SOUTHWEST-
INCLUDING THE CITIES OF CABO ROJO, GUANICA, AND LAJAS
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 91 92 73 75 82 84 92 93 73 75 82 84 92 93
TEMP 77 85 90 91 87 80 78 76 77 85 90 92 88 81 78 76 77 85 91 92 88 81
DEWPT 73 73 75 77 76 76 75 74 72 74 75 76 75 75 75 74 73 75 76 77 76 76
RH 87 67 62 64 70 88 91 94 85 70 62 60 66 82 91 94 87 72 62 62 68 85
WIND DIR E E SE SE SE E E E E E SE SE SE E E E E E SE SE SE E
WIND SPD 4 4 12 16 12 11 8 5 3 5 13 13 11 9 8 8 8 8 16 16 12 13
WIND GUST 28 32 26 26 27 27 25 19 19 31 31 26 27
CLOUDS FW FW FW SC SC SC FW FW SC CL FW FW FW SC SC SC SC FW FW SC SC FW
POP 12HR 30 10 10 5 20
QPF 12HR 0.05-0.57 0.02-0.11 0.05-0.46 0.01-0.10 0.04-0.29
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS IS IS IS IS IS IS IS IS IS IS
TSTMS IS
HEAT INDEX 92100104 98 86 93101105 98 87 94103107100 88
MAX HEAT 95 108 107 91 95 109 107 91 96 111 109
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 77 92 76 91 75 91
TEMP 77 85 91 81 77 86 92 81 77 85 91 81 76 85 91 81
DEWPT 74 74 77 76 74 74 75 76 73 72 75 76 73 73 76 76
PWIND DIR E E E E E E E E
WIND CHAR GN BZ GN BZ GN BZ GN GN
AVG CLOUDS FW FW SC SC FW FW FW FW CL FW FW FW CL FW FW FW
POP 12HR 5 30 0 5 0 0 0 0
RAIN SHWRS IS IS SC SC IS IS IS
PRZ012-262000-
CULEBRA-
INCLUDING THE CITY OF CULEBRA
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 88 92 80 84 89 93 81 84 89 93
TEMP 82 85 87 88 86 83 81 80 81 85 88 89 87 83 82 81 82 86 88 89 87 84
DEWPT 77 77 77 77 77 77 77 77 76 76 76 77 77 77 77 77 77 77 77 78 78 78
RH 85 77 72 70 75 82 88 91 85 75 68 68 72 82 85 88 85 75 70 70 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 18 17 16 16 14 16 14 14 16 14 13 12 12 13 14 14 14 17 18 18 17 14
CLOUDS SC SC B1 B2 B2 B1 SC B1 B2 B2 B1 B1 B1 SC SC SC SC B1 B1 SC SC SC
POP 12HR 50 60 60 40 40
QPF 12HR 0.14 0.34 0.32 0.05 0.10
SNOW 12HR MM MM MM
RAIN SHWRS IS IS SC SC SC SC IS SC NM NM SC SC SC IS IS IS IS SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS IS
HEAT INDEX 89 96 99100 97 91 88 85 87 95 99101 98 92 90 88 90 97101103100 94
MAX HEAT 101 106 105 94 100 108 106 95 102 109 108
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 88 81 88 81 88 81 88
TEMP 81 85 88 83 81 85 88 83 81 85 88 83 81 85 88 83
DEWPT 78 78 78 78 77 77 77 77 77 77 77 77 76 77 77 77
PWIND DIR E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC B1 SC FW SC SC SC SC SC SC SC SC SC SC SC FW
POP 12HR 40 40 20 20 20 20 30 40
RAIN SHWRS SC SC SC IS IS IS IS IS IS IS IS IS IS SC SC SC
TSTMS IS
PRZ013-262000-
VIEQUES-
INCLUDING THE CITY OF VIEQUES
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 88 91 76 79 82 84 89 92 80 84 90 93
TEMP 81 85 87 88 86 82 81 79 80 85 88 89 87 83 81 80 81 86 89 90 87 83
DEWPT 76 77 76 76 76 76 76 76 75 76 75 76 76 76 76 76 76 77 76 77 77 77
RH 85 77 70 68 72 82 85 91 85 75 66 66 70 80 85 88 85 75 66 66 72 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 18 16 16 17 14 16 14 13 13 13 12 10 10 11 14 14 13 17 17 16 16 14
CLOUDS SC SC SC B2 B2 B1 SC B2 B2 B2 B2 B1 B1 SC SC SC SC B1 B1 B1 B1 SC
POP 12HR 50 60 70 40 40
QPF 12HR 0.15-0.22 0.32 0.29-0.37 0.06 0.10-0.16
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS SC SC SC IS NM NM SC NM SC SC SC SC SC SC SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS IS
HEAT INDEX 88 95 99100 96 90 87 83 86 94 99100 97 91 88 86 88 96101103 99 92
MAX HEAT 98 103 103 91 97 104 103 93 99 108 106
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 80 89 80 89
TEMP 80 86 89 83 81 86 89 83 80 85 89 83 80 85 89 83
DEWPT 77 77 77 77 77 77 76 76 76 77 76 76 76 76 75 76
PWIND DIR E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC B1 SC FW SC SC SC SC SC SC SC SC SC SC SC FW
POP 12HR 50 50 20 20 20 20 30 30
RAIN SHWRS SC SC SC IS IS IS IS IS IS IS IS IS IS IS SC SC
VIZ001-262000-
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 SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 87 92 73 79 82 84 88 93 74 80 82 84 88 93
TEMP 81 84 86 87 85 82 80 79 80 84 87 88 85 82 81 80 81 85 87 88 86 83
DEWPT 76 76 76 76 76 76 76 76 75 75 75 76 76 76 76 76 76 77 76 77 77 77
RH 85 77 72 70 75 82 88 91 85 74 68 68 75 82 85 88 85 77 70 70 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 18 17 18 17 14 16 16 16 14 13 13 13 13 13 16 14 17 18 19 18 16 17
CLOUDS SC SC SC B2 B1 SC SC B1 B2 B2 B1 B1 B1 SC SC SC SC SC SC SC SC SC
POP 12HR 50 60 60 30 30
QPF 12HR 0.12 0.39 0.23-0.29 0.03 0.07
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS SC SC SC IS SC NM NM SC SC SC IS IS IS IS SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS
HEAT INDEX 86 93 96 97 94 88 86 83 85 92 96 98 95 90 87 85 87 94 98100 96 91
MAX HEAT 99 105 104 93 98 107 105 94 100 108 107
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 87 80 87 80 87 80 87
TEMP 80 84 87 83 80 84 87 82 80 84 87 82 80 84 87 82
DEWPT 77 77 77 77 76 76 76 76 76 76 76 76 76 76 76 76
PWIND DIR E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC B1 SC FW FW FW FW FW SC SC SC SC SC SC SC SC
POP 12HR 30 30 5 10 10 10 20 50
RAIN SHWRS SC SC SC IS IS IS IS IS IS IS IS IS IS IS IS SC
TSTMS IS
VIZ002-262000-
ST CROIX-
INCLUDING THE CITIES OF CHRISTIANSTED, FREDERIKSTED,
FREDERIKSTED SOUTHEAST, AND GROVE PLACE
231 AM AST SUN JUL 26 2026
DATE SUN 07/26/26 MON 07/27/26 TUE 07/28/26
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 88 92 75 79 82 84 89 93 76 80 82 84 89 93
TEMP 80 84 87 88 85 82 80 79 80 84 88 89 86 83 81 80 81 85 88 89 87 83
DEWPT 77 77 77 76 76 76 76 76 76 76 76 77 76 77 77 77 77 77 77 77 77 77
RH 91 80 72 68 75 82 88 91 88 77 68 68 72 82 88 91 88 77 70 68 72 82
WIND DIR E E E E E E E E E E SE E E E E E E E E E E E
WIND SPD 17 17 18 17 14 13 13 12 11 11 12 12 11 11 13 13 13 17 19 18 16 14
CLOUDS SC B1 B2 B2 B1 SC SC B2 B2 B2 B1 B1 B1 SC SC SC SC SC SC SC SC SC
POP 12HR 60 60 50 20 30
QPF 12HR 0.21 0.27 0.24-0.29 0.02 0.06
SNOW 12HR MM MM MM
RAIN SHWRS SC SC SC NM SC SC IS SC NM SC SC SC SC IS IS IS IS IS IS SC SC SC
TSTMS IS IS IS IS IS IS IS IS IS
HEAT INDEX 87 94 98 99 95 89 86 82 85 94 98101 97 91 88 85 87 96100102 98 92
MAX HEAT 99 106 105 92 99 107 106 94 100 109 107
HEAT Y Y
DATE WED 07/29/26 THU 07/30/26 FRI 07/31/26 SAT 08/01/26
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 80 88 80 88 79 88
TEMP 80 85 88 83 80 85 88 83 80 85 88 82 80 85 88 82
DEWPT 77 78 77 77 77 77 76 77 76 77 76 76 76 76 76 77
PWIND DIR E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC SC SC CL CL FW FW FW SC SC SC SC SC SC SC FW
POP 12HR 30 20 10 10 10 10 20 40
RAIN SHWRS SC SC IS IS IS IS IS IS IS IS IS IS IS SC
TSTMS IS
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