791
FOCA52 TJSJ 261831
AFMSJU
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN JUAN PR
231 PM AST SUN JUL 26 2026
PRZ001-270800-
SAN JUAN AND VICINITY-
INCLUDING THE CITIES OF BAYAMON, CAROLINA, CATANO, GUAYNABO,
SAN JUAN, TOA ALTA, TOA BAJA, AND TRUJILLO ALTO
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 72 76 82 83 90 93 72 77 82 83 91 93 73 78 82
TEMP 86 81 79 77 78 84 89 90 86 81 79 77 79 85 90 91 87 82 80 78 79 84
DEWPT 76 76 76 75 74 76 76 77 76 76 75 75 75 77 77 78 77 76 76 76 76 77
RH 72 85 91 94 88 77 66 66 72 85 88 94 88 77 66 66 72 82 88 94 91 80
WIND DIR E E E E E E E E SE SE SE SE SE SE E E E E E E E E
WIND SPD 13 9 6 4 4 8 12 14 12 8 6 5 5 10 14 17 12 9 8 9 8 12
WIND GUST 25 25 27
CLOUDS B1 SC SC SC SC B2 OV B1 B1 SC B1 B2 B1 B1 B1 B2 B2 SC SC B1 B1 SC
POP 12HR 60 70 60 60 40
QPF 12HR 0.16-0.26 0.19-0.70 0.06-0.23 0.07-0.53 0.06-0.12
SNOW 12HR MM MM MM
RAIN SHWRS SC IS SC IS SC NM NM SC SC SC SC NM SC SC SC NM NM IS IS SC SC SC
TSTMS IS IS IS IS IS IS IS IS IS IS
HEAT INDEX 96 86 81 80 93100103 97 88 82 81 95102105 99 90 85 81 83 95
MAX HEAT 106 92 97 111 108 92 100 113 111 94 99
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 78 90 78 89 77 89 77 89
TEMP 89 82 79 85 90 82 78 84 89 81 78 84 89 81 78 85 89 81
DEWPT 77 77 76 76 76 76 75 76 76 76 75 76 76 76 75 76 72 73
PWIND DIR E E E E E E E SE E
WIND CHAR BZ GN BZ GN GN LT GN LT GN
AVG CLOUDS SC SC FW FW SC FW FW FW FW FW CL FW FW FW SC SC B1 B1
POP 12HR 30 10 10 0 10 20 20 50 50
RAIN SHWRS SC SC IS IS IS IS IS IS IS IS IS IS SC SC SC
TSTMS IS IS IS
PRZ002-270800-
NORTHEAST-
INCLUDING THE CITIES OF CEIBA, CANOVANAS, FAJARDO, HUMACAO,
LOIZA, LUQUILLO, NAGUABO, AND RIO GRANDE
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 75 88 93 66 77 82 75 89 93 66 77 82
TEMP 85 80 78 77 78 83 87 88 85 81 79 77 78 84 88 89 86 81 79 78 79 83
DEWPT 75 75 75 74 74 75 75 75 75 75 75 74 74 75 75 76 76 75 75 75 75 76
RH 72 85 91 90 88 77 68 66 72 82 88 90 88 74 66 66 72 82 88 91 88 80
WIND DIR E E E E E E SE SE SE E E E E E E E E E E E E E
WIND SPD 12 9 8 6 6 9 10 12 10 6 8 6 8 11 14 14 11 10 9 10 11 13
WIND GUST 19 24 20 26 19 20 21 24
CLOUDS B1 B1 B1 B1 B1 OV OV B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1
POP 12HR 70 70 60 60 50
QPF 12HR 0.22-0.33 0.21-0.70 0.23 0.09-0.53 0.13
SNOW 12HR MM MM MM
RAIN SHWRS SC SC SC SC SC NM NM SC SC SC SC NM SC SC SC NM NM SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS IS IS IS IS IS IS
HEAT INDEX 93 85 81 80 90 96 98 93 86 82 81 92 97100 95 87 83 80 82 91
MAX HEAT 105 92 98 108 106 92 99 109 107 94 99
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 78 88 78 87 77 87 77 88
TEMP 87 81 78 84 88 81 78 83 87 80 78 83 87 80 78 84 88 80
DEWPT 76 76 75 75 75 75 74 75 75 75 74 75 75 75 74 75 74 73
PWIND DIR E E E E E E E E E
WIND CHAR BZ GN BZ GN GN GN GN GN GN
AVG CLOUDS B1 SC SC SC SC SC SC SC SC SC FW FW SC FW SC B1 B2 B1
POP 12HR 50 20 20 20 20 30 30 50 60
RAIN SHWRS SC IS IS IS IS IS IS IS IS IS IS SC SC SC SC NM NM
TSTMS IS IS IS
PRZ003-270800-
SOUTHEAST-
INCLUDING THE CITIES OF ARROYO, GUAYAMA, MAUNABO, PATILLAS,
SALINAS, AND YABUCOA
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 76 82 77 88 93 68 76 82 77 88 93 69 77 82
TEMP 85 80 78 76 77 83 87 88 85 80 78 77 78 83 87 88 85 81 79 77 78 83
DEWPT 74 74 74 73 73 74 74 74 74 74 74 74 74 75 75 75 75 75 75 74 75 75
RH 70 82 88 90 87 74 65 63 70 82 88 90 88 77 68 66 72 82 88 90 91 77
WIND DIR E E E NE NE E E SE SE E E E E E E SE E E E E E E
WIND SPD 13 9 8 6 5 8 11 11 10 5 6 5 6 10 13 13 10 8 8 9 9 12
WIND GUST 25 19 25 24 23 27 26 21 24
CLOUDS SC SC SC SC B1 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC B1
POP 12HR 50 50 40 40 40
QPF 12HR 0.04-0.25 0.02-0.71 0.03-0.23 0.02-0.45 0.02-0.13
SNOW 12HR MM MM MM
RAIN SHWRS IS IS SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC IS IS SC SC SC
TSTMS IS IS IS IS IS IS IS IS IS
HEAT INDEX 92 84 80 89 94 96 92 84 81 80 90 96 98 93 86 82 81 90
MAX HEAT 102 90 96 104 102 90 97 105 104 92 96
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 78 88 77 87 76 87 76 88
TEMP 87 81 78 84 88 81 77 83 87 80 77 83 87 80 77 83 88 80
DEWPT 76 75 75 74 74 74 74 74 74 74 73 74 74 74 74 74 72 73
PWIND DIR E E E E E E E E E
WIND CHAR BZ GN BZ GN GN GN GN GN GN
AVG CLOUDS B1 SC SC SC FW FW FW FW SC FW CL FW SC FW SC SC SC SC
POP 12HR 40 10 5 20 20 20 20 20 20
RAIN SHWRS SC IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS
TSTMS IS
PRZ004-270800-
EASTERN INTERIOR-
INCLUDING THE CITIES OF AGUAS BUENAS, CAGUAS, CAYEY, CIDRA,
COMERIO, GURABO, JUNCOS, LAS PIEDRAS, AND SAN LORENZO
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 73 77 75 87 93 68 73 77 76 88 93 69 74 78
TEMP 83 77 75 74 75 81 86 87 83 78 76 74 75 82 86 88 84 79 76 75 76 81
DEWPT 74 74 73 73 72 74 74 74 74 73 73 73 73 75 74 75 74 74 74 73 74 75
RH 74 90 94 97 90 79 68 65 74 85 90 97 94 79 68 66 72 85 94 94 94 82
WIND DIR E E E E E E SE SE SE SE E SE E E SE SE E E E E E E
WIND SPD 11 5 4 3 2 5 10 11 10 4 4 3 4 9 13 13 10 5 5 6 5 11
CLOUDS SC SC SC SC SC B1 B2 B2 B2 SC SC B2 B1 B1 B1 B1 B1 SC SC B1 B1 B1
POP 12HR 40 70 60 50 40
QPF 12HR 0.05-0.29 0.07-0.70 0.06-0.23 0.08-0.53 0.03-0.13
SNOW 12HR MM MM MM
RAIN SHWRS SC IS SC IS SC SC NM NM NM SC IS NM SC SC SC SC SC SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS IS IS IS
HEAT INDEX 89 86 93 95 90 80 88 95 97 91 81 86
MAX HEAT 103 87 96 105 103 88 97 106 104 89 98
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 87 74 86 73 86 73 87
TEMP 86 78 75 82 87 78 75 81 86 78 74 81 86 78 74 82 87 78
DEWPT 75 74 74 75 74 74 73 74 74 73 73 74 74 73 73 74 70 71
PWIND DIR E E E E E E E E E
WIND CHAR GN GN GN LT GN LT GN LT GN
AVG CLOUDS B1 SC FW FW FW FW FW FW SC FW CL FW SC FW SC SC B1 SC
POP 12HR 40 5 10 20 20 20 20 40 40
RAIN SHWRS SC IS IS IS IS IS IS IS IS IS IS IS IS IS SC SC
TSTMS IS IS IS
PRZ005-270800-
NORTH CENTRAL-
INCLUDING THE CITIES OF ARECIBO, BARCELONETA, DORADO, FLORIDA,
MANATI, VEGA ALTA, AND VEGA BAJA
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 72 75 82 84 90 93 72 75 82 84 91 93 73 76 82
TEMP 86 80 77 76 77 84 89 90 86 80 78 76 77 85 90 91 87 81 79 77 78 84
DEWPT 77 76 75 74 73 76 77 79 78 77 75 74 74 77 78 79 78 77 76 75 76 77
RH 75 88 94 94 87 77 68 70 77 91 91 94 90 77 68 68 75 88 91 94 94 80
WIND DIR E E SE SE SE E E E E SE SE SE SE E E E E E E E E E
WIND SPD 14 12 6 5 5 9 12 13 5 5 5 4 5 8 12 14 6 8 8 8 8 10
WIND GUST 28 25 23 26 19 28 21
CLOUDS B1 FW SC SC SC B1 B2 B2 B2 SC SC B1 SC SC SC B2 B2 FW FW SC SC FW
POP 12HR 30 60 30 50 20
QPF 12HR 0.05-0.19 0.12-1.24 0.01-0.20 0.05-1.12 0.00-0.07
SNOW 12HR MM MM MM
RAIN SHWRS SC IS IS IS IS SC SC NM NM IS IS SC SC SC SC SC SC IS IS IS
TSTMS IS IS IS IS IS IS IS IS
HEAT INDEX 98 85 93102107 98 86 95104108100 88 80 95
MAX HEAT 110 92 99 116 113 92 101 116 113 94 101
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 77 91 76 89 75 90 75 90
TEMP 90 81 77 85 91 81 77 84 89 80 76 84 90 80 76 85 90 80
DEWPT 78 76 75 76 77 76 75 76 77 76 74 76 78 76 74 76 71 73
PWIND DIR E E E E E E E E E
WIND CHAR BZ GN BZ GN BZ LT GN LT GN
AVG CLOUDS SC SC CL FW FW FW CL CL FW SC CL FW FW FW FW FW SC B1
POP 12HR 40 0 10 0 10 5 5 20 50
RAIN SHWRS IS SC IS IS IS IS IS IS IS SC SC
TSTMS IS IS IS
PRZ006-270800-
CENTRAL INTERIOR-
INCLUDING THE CITIES OF AIBONITO, BARRANQUITAS, CIALES, COAMO,
COROZAL, JAYUYA, MOROVIS, NARANJITO, OROCOVIS, AND VILLALBA
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 63 72 76 75 85 92 63 72 76 75 85 93 64 73 77
TEMP 82 76 74 72 73 79 83 85 81 76 74 72 73 80 84 85 82 77 75 73 74 79
DEWPT 73 72 72 71 71 73 73 74 73 73 72 71 71 73 74 74 73 73 72 72 72 74
RH 74 87 93 97 93 82 72 70 77 90 93 97 93 79 72 70 74 87 90 97 93 85
WIND DIR E E E E E E E SE SE SE SE SE E SE SE SE SE E E E E E
WIND SPD 9 5 3 3 3 4 9 9 8 4 3 3 3 6 11 11 9 4 4 5 4 9
WIND GUST 24 25 23 20 26 25 20
CLOUDS B1 FW FW SC SC SC B1 B2 B2 FW FW SC SC SC SC B1 B1 FW FW SC SC FW
POP 12HR 10 60 20 40 10
QPF 12HR 0.03-0.17 0.03-1.24 0.00-0.06 0.02-1.13 0.00-0.08
SNOW 12HR MM MM MM
RAIN SHWRS SC IS IS IS IS IS SC NM NM IS IS IS IS IS IS SC SC IS IS IS IS IS
TSTMS IS IS IS IS IS
HEAT INDEX 86 82 89 91 86 83 90 92 87 83
MAX HEAT 104 86 95 107 105 86 97 108 106 88 96
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 85 73 84 72 84 72 85
TEMP 84 77 73 80 85 77 73 80 84 76 73 80 84 76 73 80 85 76
DEWPT 74 73 72 73 72 72 71 72 72 72 71 72 73 72 71 73 67 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 SC SC FW FW FW FW CL FW FW SC CL FW FW FW FW FW SC SC
POP 12HR 20 0 10 0 20 10 10 20 20
RAIN SHWRS IS IS IS IS IS IS IS IS IS IS IS
PRZ007-270800-
PONCE AND VICINITY-
INCLUDING THE CITIES OF GUAYANILLA, JUANA DIAZ, YAUCO, PENUELAS,
PONCE, AND SANTA ISABEL
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 62 75 82 75 88 93 62 75 82 75 88 93 63 76 82
TEMP 85 79 77 75 76 82 87 88 85 79 77 75 77 83 87 88 85 80 78 76 77 83
DEWPT 74 73 72 71 71 72 73 74 74 73 72 71 71 73 74 75 74 74 72 72 72 73
RH 70 82 85 87 85 72 63 63 70 82 85 87 82 72 65 66 70 82 82 87 85 72
WIND DIR SE E E NE NE E SE SE SE E E E E E SE SE SE E E NE E E
WIND SPD 9 6 4 4 4 4 11 9 9 5 4 4 4 8 13 11 10 6 4 4 6 9
WIND GUST 27 19 25 23 20 20 27 26 24 23
CLOUDS SC SC FW FW FW FW SC SC SC FW FW FW FW FW FW SC SC FW FW FW FW FW
POP 12HR 10 30 5 20 5
QPF 12HR 0.02-0.07 0.01-1.06 0.00-0.05 0.00-0.63 0.01
SNOW 12HR MM MM MM
RAIN SHWRS SC IS IS IS IS IS IS SC SC IS IS IS IS IS IS IS IS IS
TSTMS IS IS
HEAT INDEX 92 83 87 93 96 91 83 88 95 97 92 84 80 88
MAX HEAT 104 90 95 105 103 91 96 107 105 91 96
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 76 89 76 88 75 88 75 88
TEMP 88 80 77 84 89 80 77 83 88 80 76 83 88 79 76 83 88 79
DEWPT 74 73 72 72 72 72 71 71 73 73 71 71 73 73 71 72 70 73
PWIND DIR E E E E E E E E E
WIND CHAR GN GN GN LT GN LT GN LT GN
AVG CLOUDS SC SC FW FW FW FW CL FW FW FW CL FW FW CL CL FW FW SC
POP 12HR 30 0 5 10 10 5 5 5 10
RAIN SHWRS SC SC IS IS IS IS IS IS IS IS
PRZ008-270800-
NORTHWEST-
INCLUDING THE CITIES OF AGUADILLA, CAMUY, HATILLO, ISABELA,
AND QUEBRADILLAS
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 70 73 82 84 88 93 70 73 82 84 89 93 70 74 82
TEMP 85 78 76 74 75 82 87 88 85 78 76 74 75 83 88 89 85 79 77 75 76 83
DEWPT 77 76 75 73 73 75 76 78 76 76 75 73 72 75 76 79 77 77 76 74 75 76
RH 77 94 97 97 94 79 70 72 75 94 97 97 90 77 68 73 77 94 97 97 97 80
WIND DIR E E E E E E NE E NE E SE SE SE E E NE E E E E E E
WIND SPD 10 11 8 6 8 9 10 8 3 2 4 3 4 6 6 10 4 4 6 9 9 10
WIND GUST 21 24 21 21 17 23
CLOUDS B2 SC FW SC SC SC FW B2 B2 B1 SC SC FW CL CL B2 B2 SC SC FW FW FW
POP 12HR 20 80 40 70 30
QPF 12HR 0.05-0.15 0.09-1.28 0.01-0.17 0.62-1.14 0.03
SNOW 12HR MM MM MM
RAIN SHWRS SC IS IS IS IS IS NM NM SC IS IS IS NM NM IS IS IS IS
TSTMS IS IS IS IS IS IS
HEAT INDEX 94 80 89 97102 94 80 90 99104 96 83 91
MAX HEAT 107 91 96 111 108 91 96 112 110 92 97
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 75 88 74 88 74 88
TEMP 89 79 76 84 90 80 76 83 88 79 75 82 88 78 74 83 88 79
DEWPT 77 76 74 75 76 76 74 75 76 76 74 74 77 76 73 75 73 73
PWIND DIR E E E E E E E E E
WIND CHAR GN GN BZ GN BZ GN GN LT GN
AVG CLOUDS SC B1 CL CL FW SC CL CL SC SC CL FW FW SC CL FW FW B1
POP 12HR 60 0 30 0 50 0 40 0 60
RAIN SHWRS NM NM SC SC SC SC SC SC SC NM
TSTMS IS IS IS IS IS IS IS
PRZ009-270800-
WESTERN INTERIOR-
INCLUDING THE CITIES OF ADJUNTAS, LARES, LAS MARIAS, MARICAO,
SABANA GRANDE, SAN SEBASTIAN, AND UTUADO
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 71 76 75 85 93 65 71 76 75 86 93 66 72 77
TEMP 82 76 74 72 73 80 84 85 82 76 74 72 73 80 84 86 82 77 75 73 74 80
DEWPT 75 74 73 71 70 73 74 76 74 73 73 71 70 73 75 76 75 74 73 72 72 74
RH 79 94 97 97 90 79 72 75 77 90 97 97 90 79 74 72 79 90 94 97 93 82
WIND DIR E E E E E E E SE SE SE SE SE SE E SE E E E E E E E
WIND SPD 3 3 3 3 4 4 5 3 3 2 3 3 3 5 8 5 3 4 4 4 4 6
WIND GUST 23 21 28 25 23 19
CLOUDS B2 SC FW FW FW FW SC B2 OV FW FW FW FW CL CL B2 B2 SC SC CL CL FW
POP 12HR 20 80 5 70 20
QPF 12HR 0.02-0.14 0.02-1.24 0.01 0.01-1.14 0.02
SNOW 12HR MM MM MM
RAIN SHWRS NM IS IS NM D IS IS NM NM IS IS
TSTMS IS IS IS IS IS
HEAT INDEX 88 83 91 94 87 84 92 96 89 84
MAX HEAT 107 85 94 112 109 85 94 113 110 87 95
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 73 87 73 85 72 85 71 86
TEMP 85 77 73 81 87 77 73 80 85 76 73 80 85 76 72 80 86 76
DEWPT 75 73 72 72 73 73 71 72 74 73 71 72 75 73 71 73 68 71
PWIND DIR E E E E E E E E E
WIND CHAR GN LT GN LT LT LT LT LT LT
AVG CLOUDS SC SC CL CL FW SC CL FW FW SC CL FW FW FW CL FW FW B1
POP 12HR 50 0 40 0 40 0 5 0 40
RAIN SHWRS SC SC SC SC SC SC SC IS SC
TSTMS IS IS IS IS IS IS IS
PRZ010-270800-
MAYAGUEZ AND VICINITY-
INCLUDING THE CITIES OF AGUADA, ANASCO, HORMIGUEROS, MAYAGUEZ,
MOCA, RINCON, AND SAN GERMAN
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 74 82 76 90 93 68 75 82 77 91 93 68 75 82
TEMP 86 80 77 75 76 84 89 90 86 80 77 75 77 84 89 91 87 80 78 76 77 84
DEWPT 77 76 76 74 73 75 77 79 77 76 76 74 73 75 77 79 78 77 76 75 75 76
RH 75 88 97 97 90 74 68 70 75 88 97 97 87 74 68 68 75 91 94 97 94 77
WIND DIR E E E E E E SE SE NE E E E E E E NE E E E E E E
WIND SPD 5 6 5 5 6 6 5 5 3 4 4 5 6 8 9 9 8 4 5 8 8 8
WIND GUST 16 17 17 16 17 17 17 18 21 23 24 20 19 20 21 20 24
CLOUDS B2 B1 FW FW FW FW FW B1 B2 SC SC FW FW CL CL B2 B2 SC SC CL CL FW
POP 12HR 40 70 20 60 30
QPF 12HR 0.02-0.18 0.00-1.28 0.00-0.16 0.00-1.14 0.03
SNOW 12HR MM MM MM
RAIN SHWRS NM SC NM D SC IS NM NM SC SC
TSTMS IS IS IS IS IS IS IS
HEAT INDEX 97 84 92101106 97 85 93103108 99 86 93
MAX HEAT 109 91 97 114 110 91 98 115 112 92 97
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 76 90 75 90 75 90
TEMP 90 81 76 85 91 81 76 84 90 80 76 84 90 80 75 84 90 80
DEWPT 78 77 74 75 77 76 74 75 77 76 74 75 77 76 74 75 72 74
PWIND DIR E E E E E E E E E
WIND CHAR GN GN GN GN GN LT LT GN LT
AVG CLOUDS SC SC FW FW FW SC FW FW FW SC CL CL FW SC FW FW FW B1
POP 12HR 50 0 40 0 50 0 40 0 60
RAIN SHWRS SC SC SC SC SC SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS IS IS
PRZ011-270800-
SOUTHWEST-
INCLUDING THE CITIES OF CABO ROJO, GUANICA, AND LAJAS
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 75 82 84 92 93 73 75 82 84 92 93 74 76 82
TEMP 87 80 78 76 77 85 90 92 88 81 78 76 77 85 91 92 88 81 79 77 78 85
DEWPT 76 76 75 74 72 74 75 76 75 75 75 74 73 75 76 77 76 76 75 74 74 74
RH 70 88 91 94 85 70 62 60 66 82 91 94 87 72 62 62 68 85 88 90 88 70
WIND DIR E E E NE E E SE SE SE E E E E E SE SE SE E E E E E
WIND SPD 9 6 8 5 3 4 13 14 11 8 8 8 9 12 18 16 13 10 9 8 9 12
WIND GUST 19 26 28 24 19 21 26 33 32 28 23 20 20 23 26
CLOUDS SC SC FW FW SC CL FW FW FW CL FW FW FW FW FW SC SC FW FW CL CL FW
POP 12HR 10 10 5 5 5
QPF 12HR 0.02-0.11 0.00-0.07 0 0.00-0.64 0.01
SNOW 12HR MM MM MM
RAIN SHWRS IS IS IS IS IS IS IS IS IS IS IS IS IS
HEAT INDEX 98 86 93101105 98 87 94103107100 88 80 93
MAX HEAT 107 91 95 109 107 91 96 111 109 91 96
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 91 77 92 76 91 75 91 75 91
TEMP 91 81 77 86 92 81 77 85 91 81 76 85 91 81 76 85 91 81
DEWPT 77 76 74 74 75 76 73 72 75 76 73 73 76 76 74 74 73 75
PWIND DIR E E E E E E SE E SE
WIND CHAR BZ GN BZ GN BZ GN BZ GN GN
AVG CLOUDS SC SC FW FW FW FW CL FW FW FW CL FW FW FW CL CL FW SC
POP 12HR 30 0 5 0 0 0 0 0 10
RAIN SHWRS SC SC IS IS IS IS IS
PRZ012-270800-
CULEBRA-
INCLUDING THE CITY OF CULEBRA
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 84 89 93 81 84 89 93 81
TEMP 86 83 81 80 81 85 88 89 87 83 82 81 82 86 88 89 87 84 82 81 82 85
DEWPT 77 77 77 77 76 76 76 77 77 77 77 77 77 77 77 78 78 78 78 78 78 78
RH 75 82 88 91 85 75 68 68 72 82 85 88 85 75 70 70 75 82 88 91 88 80
WIND DIR E E E E E E E SE SE E E E E E E E E E E E E E
WIND SPD 16 16 14 11 12 14 13 13 12 13 14 14 16 17 18 18 14 14 16 18 19 20
CLOUDS B1 B1 SC B1 B2 B2 B1 B1 B1 B1 B1 B2 B1 B1 B1 SC SC B1 B1 B1 B1 B1
POP 12HR 60 60 50 40 40
QPF 12HR 0.34 0.25 0.09 0.07 0.12
SNOW 12HR MM MM MM
RAIN SHWRS SC SC IS SC NM NM SC SC SC SC SC SC SC SC SC IS IS SC SC SC SC SC
TSTMS IS IS IS IS IS IS IS IS
HEAT INDEX 97 91 88 85 87 95 99101 98 92 90 88 90 97101103100 94 91 89 91 97
MAX HEAT 105 94 100 108 106 95 102 109 108 97 102
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 81 88 81 88 81 88 81 88
TEMP 88 83 81 85 88 83 81 85 88 83 81 85 88 83 81 85 88 83
DEWPT 78 78 77 77 77 77 77 77 77 77 76 77 77 77 77 77 76 75
PWIND DIR E E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC FW SC SC SC SC SC SC SC SC SC SC SC FW B1 B1 B1 B1
POP 12HR 40 20 20 20 20 30 40 50 50
RAIN SHWRS SC IS IS IS IS IS IS IS IS IS IS SC SC SC SC SC SC SC
TSTMS IS IS IS IS IS
PRZ013-270800-
VIEQUES-
INCLUDING THE CITY OF VIEQUES
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 79 82 84 89 92 80 84 90 93 80
TEMP 86 82 81 79 80 85 88 89 87 83 81 80 81 86 89 90 87 83 82 80 81 86
DEWPT 76 76 76 76 75 76 75 76 76 76 76 76 76 77 76 77 77 77 77 77 77 77
RH 72 82 85 91 85 75 66 66 70 80 85 88 85 75 66 66 72 82 85 91 88 75
WIND DIR E E E E E E SE SE SE E E E E E E E E E E E E E
WIND SPD 16 16 13 13 11 13 12 11 10 10 13 13 14 16 17 16 13 14 17 18 18 20
CLOUDS B1 B1 SC B2 B2 B2 B2 B1 B1 B1 B1 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR 60 70 50 50 50
QPF 12HR 0.29-0.35 0.07-0.70 0.09-0.23 0.07-0.53 0.12
SNOW 12HR MM MM MM
RAIN SHWRS SC SC IS NM NM SC NM 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 IS IS IS
HEAT INDEX 96 90 87 83 86 94 99100 97 91 88 86 88 96101103 99 92 90 87 89 97
MAX HEAT 103 91 97 104 103 93 99 108 106 94 100
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 81 89 80 89 80 89 80 89
TEMP 89 83 81 86 89 83 80 85 89 83 80 85 89 83 81 86 89 83
DEWPT 77 77 77 77 76 76 76 77 76 76 76 76 75 76 76 77 75 75
PWIND DIR E E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC FW SC SC SC SC SC SC SC SC SC SC SC FW B1 B1 B2 B1
POP 12HR 50 20 20 20 20 30 30 50 50
RAIN SHWRS SC IS IS IS IS IS IS IS IS IS IS IS SC SC SC SC SC SC
TSTMS IS IS IS
VIZ001-270800-
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 SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 79 82 84 88 93 74 80 82 84 88 93 74 80 82
TEMP 85 82 80 79 80 84 87 88 85 82 81 80 81 85 87 88 86 83 81 80 81 84
DEWPT 76 76 76 76 75 75 75 76 76 76 76 76 76 77 76 77 77 77 77 77 77 77
RH 75 82 88 91 85 74 68 68 75 82 85 88 85 77 70 70 75 82 88 91 88 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 16 14 14 11 16 14 13 13 12 14 16 17 14 19 19 18 14 16 17 18 19 21
CLOUDS SC SC SC B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC B1
POP 12HR 60 60 50 30 30
QPF 12HR 0.30-0.39 0.12-0.25 0.09 0.06 0.04-0.12
SNOW 12HR MM MM MM
RAIN SHWRS SC SC IS SC NM NM SC SC SC SC SC SC SC SC SC IS IS SC SC IS IS SC
TSTMS IS IS IS IS IS IS
HEAT INDEX 94 88 86 83 85 92 96 98 95 90 87 85 87 94 98100 96 91 88 86 88 94
MAX HEAT 104 93 98 107 105 94 100 108 107 95 100
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 80 87 80 87 80 87 80 87
TEMP 87 83 80 84 87 82 80 84 87 82 80 84 87 82 80 84 87 82
DEWPT 77 77 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76 76
PWIND DIR E E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ BZ BZ BZ BZ
AVG CLOUDS SC FW FW FW FW FW SC SC SC SC SC SC SC SC B2 B2 B1 SC
POP 12HR 30 5 10 10 10 20 50 50 50
RAIN SHWRS SC IS IS IS IS IS IS IS IS IS IS IS IS SC SC SC SC SC
TSTMS IS IS IS IS
VIZ002-270800-
ST CROIX-
INCLUDING THE CITIES OF CHRISTIANSTED, FREDERIKSTED,
FREDERIKSTED SOUTHEAST, AND GROVE PLACE
231 PM AST SUN JUL 26 2026
DATE 07/26/26 MON 07/27/26 TUE 07/28/26 WED
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 75 79 82 84 89 93 76 80 82 84 89 93 80
TEMP 85 82 80 79 80 84 88 89 86 83 81 80 81 85 88 89 87 83 81 80 81 85
DEWPT 76 76 76 76 76 76 76 77 76 77 77 77 77 77 77 77 77 77 78 77 77 78
RH 75 82 88 91 88 77 68 68 72 82 88 91 88 77 70 68 72 82 91 91 88 80
WIND DIR E E E E E E SE E E E E E E E E E E E E E E E
WIND SPD 14 13 13 11 11 13 13 12 11 11 13 13 12 16 18 18 14 12 13 17 18 19
CLOUDS B1 SC SC B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC
POP 12HR 60 50 40 40 30
QPF 12HR 0.19-0.26 0.12-0.25 0.09 0.04-0.09 0.03-0.11
SNOW 12HR MM MM MM
RAIN SHWRS SC SC IS SC NM SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC IS
TSTMS IS IS IS IS IS IS
HEAT INDEX 95 89 86 82 85 94 98101 97 91 88 85 87 96100102 98 92 89 86 88 96
MAX HEAT 105 92 99 107 106 94 100 109 107 95 101
DATE 07/29 THU 07/30/26 FRI 07/31/26 SAT 08/01/26 SUN 08/02/26
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 88 80 88 79 88 80 88
TEMP 88 83 80 85 88 83 80 85 88 82 80 85 88 82 80 85 88 82
DEWPT 77 77 77 77 76 77 76 77 76 76 76 76 76 77 76 77 73 75
PWIND DIR E E E E E E E E E
WIND CHAR BZ BZ BZ BZ BZ GN BZ BZ GN
AVG CLOUDS SC CL CL FW FW FW SC SC SC SC SC SC SC FW B1 B1 SC SC
POP 12HR 20 10 10 10 10 20 40 40 30
RAIN SHWRS IS IS IS IS IS IS IS IS IS IS IS SC SC SC SC SC
TSTMS IS IS IS
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page