Area Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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905 FOCA52 TJSJ 100631 AFMSJU Area Forecast Matrices National Weather Service San Juan PR 231 AM AST Mon Aug 10 2026 PRZ001-102000- San Juan and Vicinity- Including the cities of Bayamon, Carolina, Catano, Guaynabo, San Juan, Toa Alta, Toa Baja, and Trujillo Alto 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 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 94 73 78 82 82 87 91 73 77 82 83 91 93 Temp 79 85 89 90 86 82 80 79 79 84 86 87 84 81 79 78 79 86 90 91 87 82 Dewpt 76 77 76 76 75 76 76 76 76 76 76 76 76 75 76 76 76 77 77 77 77 77 RH 91 77 66 64 70 82 88 91 91 77 72 70 77 82 91 94 91 75 66 64 72 85 Wind dir E E E E E E E E E E E E E SE SE SE E E E E E E Wind spd 9 11 16 14 13 8 6 6 8 10 13 16 13 9 8 6 8 9 16 17 14 9 Wind gust 19 24 18 18 24 27 26 26 27 25 Clouds SC SC FW SC SC FW SC SC B1 SC B1 B2 B2 SC SC SC SC SC SC B1 B1 B1 PoP 12hr 20 50 50 20 50 QPF 12hr 0.03 0.10-0.24 0.23-0.30 0.02-0.08 0.27-0.51 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS SC SC SC SC SC SC IS IS IS IS IS IS SC SC SC Tstms IS IS IS IS Obvis H H H H H H H H H H H H H H H Heat index 83 96101102 96 89 85 81 82 92 97 98 93 86 83 80 82 97104105 98 90 Max heat 101 109 108 94 96 104 103 93 103 115 113 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 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 91 78 90 78 90 78 91 Temp 79 86 91 82 79 85 90 82 79 85 90 82 79 86 91 82 Dewpt 76 76 75 75 74 75 75 76 76 76 77 76 75 76 77 76 PWind dir E E E E E E E NE Wind char GN BZ GN BZ GN BZ GN GN Avg clouds SC FW CL CL CL CL FW FW CL CL FW FW CL FW SC SC PoP 12hr 40 0 0 5 0 0 10 30 Rain shwrs SC IS IS IS IS SC SC $$ PRZ002-102000- Northeast- Including the cities of Ceiba, Canovanas, Fajardo, Humacao, Loiza, Luquillo, Naguabo, and Rio Grande 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 88 94 67 78 82 75 86 91 66 77 82 75 89 93 Temp 79 84 88 88 85 81 80 78 79 83 85 86 83 80 79 78 78 84 88 89 85 81 Dewpt 75 75 74 74 74 75 75 74 75 74 75 75 75 74 75 75 75 76 75 76 75 75 RH 88 74 63 63 70 82 85 88 88 74 72 70 77 82 88 91 91 77 66 66 72 82 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 11 11 14 13 11 9 9 9 9 11 13 13 11 11 11 11 10 13 14 16 13 11 Wind gust 21 21 20 21 21 23 24 21 23 24 24 24 25 26 27 24 23 Clouds SC SC SC SC FW SC SC B1 B2 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 PoP 12hr 20 50 40 30 50 QPF 12hr 0.04 0.17-0.26 0.15-0.30 0.09 0.28-0.51 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS IS SC SC SC SC SC SC SC SC IS IS SC SC SC SC SC Tstms IS IS IS IS Obvis H H H H H H H H H Heat index 83 93 97 97 93 87 84 81 81 89 93 94 90 85 83 80 82 92 98 99 94 87 Max heat 100 105 105 93 96 101 101 92 99 107 106 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 87 78 88 79 88 78 89 Temp 78 84 87 82 79 84 88 82 79 84 88 81 79 85 89 81 Dewpt 75 75 74 73 73 74 74 74 74 75 75 74 74 74 75 74 PWind dir E E E E E E NE NE Wind char GN BZ BZ BZ GN BZ GN GN Avg clouds SC FW CL CL CL CL FW FW FW FW FW FW FW FW SC SC PoP 12hr 40 0 0 10 5 5 10 30 Rain shwrs SC IS IS IS IS IS IS IS IS IS SC SC $$ PRZ003-102000- Southeast- Including the cities of Arroyo, Guayama, Maunabo, Patillas, Salinas, and Yabucoa 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 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 69 77 82 78 86 91 69 77 82 77 88 93 Temp 79 85 88 89 85 81 79 78 78 83 85 86 83 80 79 78 78 84 88 88 85 81 Dewpt 74 74 73 72 72 73 74 74 74 73 73 73 74 74 74 74 74 75 75 74 74 75 RH 85 70 61 57 65 77 85 88 88 72 67 65 74 82 85 88 88 74 66 63 70 82 Wind dir E E E E E E NE NE NE E E E E E E E E E E E E E Wind spd 10 12 18 16 13 8 8 8 8 10 14 14 12 9 9 9 10 12 16 14 12 10 Wind gust 21 25 34 33 28 18 18 18 21 32 32 27 20 21 24 32 31 27 21 Clouds SC SC FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC PoP 12hr 5 30 30 40 40 QPF 12hr 0.02 0.02-0.18 0.06-0.17 0.04-0.10 0.14-0.32 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS SC IS IS SC SC IS IS IS IS SC SC SC SC SC Obvis H H H H H H H H H H H H H H H H Heat index 82 92 96 96 91 86 83 80 81 88 92 93 89 84 82 81 91 97 98 93 86 Max heat 100 105 104 91 94 100 99 90 101 110 109 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 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 88 77 88 77 88 77 89 Temp 78 84 88 81 78 84 88 81 78 84 88 81 78 85 89 80 Dewpt 75 74 73 73 73 73 72 74 74 73 72 74 73 73 72 73 PWind dir E E E E NE E NE NE Wind char GN BZ BZ BZ GN BZ GN GN Avg clouds SC FW CL CL CL CL CL CL CL FW FW FW CL FW FW SC PoP 12hr 30 0 0 0 5 10 5 20 Rain shwrs SC IS IS IS IS IS IS $$ PRZ004-102000- Eastern Interior- Including the cities of Aguas Buenas, Caguas, Cayey, Cidra, Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 88 94 69 75 78 76 85 90 69 74 78 77 88 93 Temp 76 83 87 88 84 79 77 76 76 81 84 85 81 78 76 75 75 82 87 88 83 79 Dewpt 74 75 73 73 72 74 74 73 73 74 74 74 74 73 74 74 74 75 75 74 74 74 RH 94 77 63 61 67 85 90 90 90 79 72 70 79 85 94 97 97 79 68 63 74 85 Wind dir E E E E E E E NE E E E E E E E E E E E E E E Wind spd 6 10 14 13 11 4 3 3 4 8 12 12 11 6 6 6 6 10 13 14 12 6 Wind gust 26 25 Clouds SC SC SC SC SC SC SC SC B1 SC SC B1 B1 SC SC SC SC SC SC B1 B1 B1 PoP 12hr 20 40 50 30 40 QPF 12hr 0.04 0.03-0.24 0.10-0.29 0.02-0.10 0.18-0.51 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS IS IS SC IS SC SC SC IS IS IS IS SC SC SC SC SC Tstms IS IS IS IS Obvis H H H H H H H H H H H H H H H H H Heat index 90 95 95 89 82 85 91 92 86 89 95 96 90 81 Max heat 101 105 104 90 95 101 99 88 100 107 106 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 86 75 87 74 86 74 88 Temp 75 82 86 78 75 82 87 79 75 82 86 78 75 83 88 78 Dewpt 74 74 72 72 72 73 73 73 73 74 73 73 73 74 73 73 PWind dir E E E E E E NE NE Wind char LT GN GN BZ GN GN LT GN Avg clouds SC FW CL CL CL CL FW FW CL FW FW FW CL FW SC SC PoP 12hr 40 0 0 5 5 5 5 30 Rain shwrs SC IS IS IS IS SC $$ PRZ005-102000- North Central- Including the cities of Arecibo, Barceloneta, Dorado, Florida, Manati, Vega Alta, and Vega Baja 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 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 94 74 76 82 83 87 91 73 75 82 84 91 93 Temp 78 85 89 90 86 81 79 77 77 83 87 87 84 79 78 76 77 85 90 91 86 81 Dewpt 75 77 77 76 76 77 76 76 76 76 77 77 78 76 76 75 75 77 78 78 78 77 RH 91 77 68 64 72 88 91 97 97 80 72 72 82 91 94 97 94 77 68 66 77 88 Wind dir E E E E E E E E E E E E E E E SE SE E E E E E Wind spd 8 11 17 18 17 11 8 6 8 11 16 18 18 11 8 6 6 8 13 17 14 10 Wind gust 21 27 31 36 25 21 28 34 35 24 25 33 29 Clouds CL FW FW SC FW FW FW SC B1 SC SC B1 B1 FW FW FW FW FW FW B1 B1 SC PoP 12hr 10 40 50 0 50 QPF 12hr 0.01-0.08 0.02-0.20 0.16-0.34 0.01 0.22-0.51 Snow 12hr MM MM MM Rain shwrs IS IS IS SC IS IS SC SC IS IS IS IS SC SC IS Tstms IS IS IS IS Obvis H H H H H H H H H H H H H H H H H H Heat index 95102103 96 88 82 91 98 99 94 83 96104106 99 87 Max heat 103 113 112 93 97 108 107 93 103 116 115 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 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 90 76 90 76 91 Temp 76 85 91 81 77 85 90 81 77 85 90 81 77 85 91 80 Dewpt 76 77 75 74 74 75 76 76 75 76 77 76 75 76 77 76 PWind dir E E E E E E E E Wind char GN BZ GN BZ GN BZ GN GN Avg clouds SC FW FW FW CL CL FW SC CL CL FW FW CL FW SC SC PoP 12hr 0 0 0 20 0 20 10 30 Rain shwrs IS IS IS IS IS IS SC SC $$ PRZ006-102000- Central Interior- Including the cities of Aibonito, Barranquitas, Ciales, Coamo, Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 86 94 64 73 78 75 83 90 63 72 77 75 85 93 Temp 75 81 85 86 82 77 76 74 74 79 82 83 80 76 74 73 74 80 84 85 81 77 Dewpt 72 73 72 71 71 72 72 72 72 72 73 73 73 72 72 72 72 73 73 73 73 73 RH 90 77 65 61 69 85 87 93 93 79 74 72 79 87 93 97 93 79 70 67 77 87 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 5 9 13 13 12 4 3 3 3 6 11 12 11 5 4 4 5 8 11 12 11 5 Wind gust 34 33 27 32 32 27 31 28 26 Clouds FW FW FW SC SC FW FW FW SC FW SC B1 B1 FW FW FW FW SC SC B1 B1 SC PoP 12hr 20 10 50 10 30 QPF 12hr 0.01-0.08 0.00-0.12 0.07-0.33 0.02 0.09-0.43 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS SC SC IS IS SC SC IS Tstms IS IS IS IS Obvis H H H H H H H H H H H H H H H H H H Heat index 85 91 91 86 82 87 88 83 85 91 92 86 Max heat 98 104 103 87 93 100 99 84 100 110 108 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 85 73 85 73 84 73 86 Temp 74 80 85 77 74 80 85 77 74 80 84 76 73 81 86 76 Dewpt 73 73 70 70 71 71 70 71 72 72 71 72 72 72 72 72 PWind dir E E E E E E NE NE Wind char LT GN GN GN LT GN LT GN Avg clouds SC FW CL CL CL CL FW FW CL CL FW SC CL FW FW SC PoP 12hr 5 0 0 20 0 30 5 30 Rain shwrs IS IS IS SC SC IS IS IS $$ PRZ007-102000- Ponce and Vicinity- Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas, Ponce, and Santa Isabel 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 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 90 94 64 76 82 75 87 91 63 75 82 75 89 93 Temp 77 84 89 90 86 81 79 77 77 83 86 87 83 79 78 76 77 84 88 89 85 80 Dewpt 71 71 71 71 71 71 70 70 70 71 72 73 74 73 72 72 72 73 74 73 74 74 RH 82 65 56 54 61 72 74 79 79 67 63 63 74 82 82 87 85 70 63 59 70 82 Wind dir E E E SE SE E NE NE NE E E SE SE E E E E E SE SE E E Wind spd 6 9 17 16 16 8 5 4 4 5 13 14 13 9 6 6 8 10 14 13 12 9 Wind gust 23 34 34 35 23 32 35 31 25 23 32 29 27 23 Clouds FW FW FW SC SC FW FW FW FW FW FW B1 B1 FW FW FW FW SC SC SC SC FW PoP 12hr 10 0 40 10 20 QPF 12hr 0.00-0.50 0.01 0.06-0.57 0.02 0.02-0.21 Snow 12hr MM MM MM Rain shwrs IS IS IS SC SC IS IS IS IS IS IS Tstms IS IS Obvis H H H H H H H H H H H H H H H H H H H H H H Heat index 89 95 96 90 84 81 87 92 94 89 82 89 96 96 91 84 Max heat 96 104 103 90 93 101 101 91 97 107 105 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 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 88 76 89 76 89 76 90 Temp 76 83 88 80 77 84 89 80 77 84 89 80 77 85 90 80 Dewpt 72 71 70 71 70 70 70 70 71 70 70 71 71 70 71 71 PWind dir E E E E E E NE E Wind char GN BZ GN BZ GN GN LT GN Avg clouds FW FW CL FW FW FW FW FW CL CL FW SC CL CL FW SC PoP 12hr 0 0 0 10 0 30 5 50 Rain shwrs IS IS IS IS SC SC SC SC $$ PRZ008-102000- Northwest- Including the cities of Aguadilla, Camuy, Hatillo, Isabela, and Quebradillas 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 89 94 71 75 82 83 86 91 70 74 82 84 89 93 Temp 76 83 88 89 85 80 78 76 76 82 85 86 82 78 76 75 76 83 88 89 85 79 Dewpt 73 75 76 75 75 76 75 74 74 75 76 76 76 75 75 73 73 75 77 78 77 77 RH 90 77 68 64 72 88 91 94 94 79 75 72 82 91 97 94 90 77 70 70 77 94 Wind dir E E E NE E E E E E E E NE E E E E E E E E E E Wind spd 8 11 17 19 18 14 11 8 9 12 16 16 16 13 8 6 6 8 10 14 9 6 Wind gust 21 27 31 36 29 25 18 20 24 27 32 33 26 23 31 21 Clouds CL FW FW SC SC FW FW FW SC SC SC B1 B1 SC SC FW FW FW FW B2 B2 SC PoP 12hr 10 20 40 10 60 QPF 12hr 0.01-0.17 0.02-0.07 0.15-0.50 0.02 0.37-0.63 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS SC SC IS IS NM NM IS Tstms IS IS IS IS Obvis H H H H H H H H H H H H H H H H H H Heat index 91 99 99 93 84 88 95 96 90 91100103 95 82 Max heat 98 110 108 91 95 106 104 91 97 112 111 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 90 75 89 75 89 75 90 Temp 75 84 90 80 76 84 89 80 76 84 89 80 76 84 90 79 Dewpt 74 75 75 74 72 73 75 75 74 74 76 75 74 74 76 75 PWind dir E E E E E E E NE Wind char GN BZ GN BZ GN BZ GN BZ Avg clouds SC FW FW FW FW FW FW SC FW FW FW FW FW FW SC SC PoP 12hr 5 5 5 40 5 10 5 30 Rain shwrs IS IS IS IS IS SC SC IS IS IS IS IS IS IS SC $$ PRZ009-102000- Western Interior- Including the cities of Adjuntas, Lares, Las Marias, Maricao, Sabana Grande, San Sebastian, and Utuado 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 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 94 66 73 77 75 84 91 66 72 76 75 86 93 Temp 74 81 86 87 83 78 76 74 74 80 83 84 80 76 74 73 73 81 85 86 82 77 Dewpt 71 73 73 73 72 73 73 72 72 72 74 75 74 73 73 72 71 74 75 75 74 74 RH 90 77 65 63 70 85 90 93 93 77 74 74 82 90 97 97 93 79 72 70 77 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 6 10 9 9 6 4 3 4 5 8 8 6 5 5 4 4 5 8 6 5 4 Wind gust 29 28 32 21 16 28 28 24 23 32 28 26 21 Clouds CL FW FW SC B1 SC FW FW FW FW FW B2 B2 SC SC FW FW FW FW B1 B1 FW PoP 12hr 30 10 60 20 50 QPF 12hr 0.02-0.60 0.01 0.24-0.72 0.02 0.04-0.61 Snow 12hr MM MM MM Rain shwrs SC SC IS IS IS NM NM IS IS SC SC Tstms IS IS IS IS IS Obvis H H H H H H H H H H H H H H H H H H Heat index 86 93 94 88 83 90 91 84 85 93 95 88 Max heat 98 110 108 87 94 107 105 86 98 114 112 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 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 86 73 86 73 86 73 88 Temp 73 81 86 77 74 81 86 77 74 81 86 77 74 82 88 77 Dewpt 72 73 71 71 70 71 71 71 71 72 73 72 71 72 73 73 PWind dir E E E E E E NE NE Wind char LT GN LT GN LT GN LT GN Avg clouds FW FW FW SC FW FW FW SC FW FW FW SC FW FW FW SC PoP 12hr 0 20 10 50 5 40 5 50 Rain shwrs IS IS IS IS SC SC IS IS SC SC IS IS SC SC $$ PRZ010-102000- Mayaguez and Vicinity- Including the cities of Aguada, Anasco, Hormigueros, Mayaguez, Moca, Rincon, and San German 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 91 94 69 76 82 78 88 91 68 75 82 76 91 93 Temp 77 85 90 91 87 81 79 77 77 84 88 88 84 80 78 76 77 85 90 91 86 80 Dewpt 73 75 77 76 76 77 76 74 74 75 77 78 77 76 76 74 73 76 78 79 78 77 RH 87 72 66 62 70 88 91 90 90 74 70 72 80 88 94 94 87 75 68 68 77 91 Wind dir E E E E E E E E E E E SE E E E E E E E E E E Wind spd 6 8 9 9 10 9 8 8 9 9 6 6 8 8 8 6 8 8 8 9 5 8 Wind gust 20 19 25 26 24 23 25 21 26 26 21 21 20 20 21 26 24 25 24 24 24 19 Clouds CL FW FW B1 B1 SC FW FW FW FW FW B2 B2 B1 B1 FW FW FW FW B1 B1 SC PoP 12hr 40 20 70 40 50 QPF 12hr 0.01-0.61 0.01 0.09-0.75 0.02-0.14 0.00-0.63 Snow 12hr MM MM MM Rain shwrs SC SC IS IS NM NM SC SC NM NM IS Tstms IS IS IS IS IS IS Obvis H H H H H H H H H H H H H H H H H H Heat index 95104105 97 88 82 91100102 95 84 95105107 98 86 Max heat 101 114 111 92 97 109 107 92 103 119 114 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 90 75 91 76 91 76 92 Temp 76 84 90 80 76 85 91 81 77 85 91 81 77 86 92 80 Dewpt 74 76 77 75 72 74 76 75 74 75 77 75 74 75 77 76 PWind dir E E E E E E NE NE Wind char GN GN GN BZ GN GN GN GN Avg clouds FW FW FW SC FW FW FW SC FW FW FW SC FW FW FW SC PoP 12hr 5 20 10 50 10 40 10 50 Rain shwrs IS IS IS IS IS SC SC IS IS SC SC IS IS SC SC $$ PRZ011-102000- Southwest- Including the cities of Cabo Rojo, Guanica, and Lajas 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 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 93 94 74 76 82 84 90 91 73 76 82 84 92 93 Temp 78 86 92 93 88 81 79 77 77 85 89 90 86 81 79 77 78 86 91 92 87 81 Dewpt 72 72 73 73 73 74 73 71 70 71 74 75 76 75 75 74 73 74 75 75 76 76 RH 82 63 54 52 61 79 82 82 79 63 61 62 72 82 88 90 85 68 60 58 70 85 Wind dir E E E SE SE E E E E E SE SE E E E E E E SE SE SE E Wind spd 9 8 18 19 18 13 6 4 4 4 13 16 13 13 12 11 10 12 18 17 14 14 Wind gust 33 33 36 31 32 34 29 28 31 26 24 26 36 35 31 32 Clouds FW FW FW SC FW FW FW FW FW FW FW B1 B1 SC SC FW FW FW FW FW FW FW PoP 12hr 10 5 30 30 5 QPF 12hr 0.02-0.56 0.01 0.09-0.67 0.02-0.07 0.01-0.18 Snow 12hr MM MM MM Rain shwrs IS IS IS SC SC IS IS IS IS Tstms IS IS Obvis H H H H H H H H H H H H H H H H H H H H H H Heat index 93101102 95 87 81 90 98100 95 86 80 94103104 97 87 Max heat 97 109 108 91 94 106 104 91 97 111 109 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 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 91 76 92 76 92 76 93 Temp 76 85 91 81 77 86 92 81 77 86 92 81 77 86 93 81 Dewpt 74 73 73 73 71 72 73 72 71 71 74 74 72 71 73 73 PWind dir E E E E E E NE E Wind char GN BZ GN BZ GN BZ LT GN Avg clouds FW FW FW FW FW FW FW FW FW FW FW SC FW FW FW SC PoP 12hr 5 10 10 10 5 30 5 50 Rain shwrs IS IS IS IS IS IS IS SC SC IS IS SC SC $$ PRZ012-102000- Culebra- Including the city of Culebra 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 89 94 81 83 86 91 81 84 90 93 Temp 82 86 88 89 86 83 82 81 81 84 86 86 85 83 82 81 82 86 89 90 87 84 Dewpt 77 78 77 76 77 77 77 77 77 77 77 77 77 76 77 77 77 78 78 78 78 78 RH 85 77 70 66 75 82 85 88 88 80 75 75 77 80 85 88 85 77 70 68 75 82 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 18 18 17 13 12 14 17 17 17 17 17 16 16 18 20 19 19 18 18 17 17 19 Wind gust 28 Clouds SC FW SC SC FW FW SC B2 B1 B1 SC B1 B1 SC SC SC SC SC SC B1 B1 SC PoP 12hr 20 50 40 20 40 QPF 12hr 0.03 0.25 0.17 0.05 0.21 Snow 12hr MM MM MM Rain shwrs IS IS IS IS SC SC SC SC SC SC IS IS IS IS IS IS SC SC SC Obvis H H H H H H H H H H H H H Heat index 90 98101101 97 93 91 89 89 94 97 98 96 91 90 88 89 98103103 99 93 Max heat 103 108 107 94 99 104 103 93 101 108 107 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 89 81 89 81 89 81 89 Temp 81 86 89 84 82 86 89 84 82 86 89 83 81 86 89 83 Dewpt 77 77 76 76 76 76 77 77 77 77 77 77 76 77 77 77 PWind dir E E E E E E E NE Wind char BZ WY WY WY BZ BZ BZ BZ Avg clouds SC FW CL CL CL FW FW FW FW FW FW FW FW FW SC SC PoP 12hr 30 0 5 10 20 20 20 20 Rain shwrs SC IS IS IS IS IS IS IS IS IS IS IS IS $$ PRZ013-102000- Vieques- Including the city of Vieques 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 89 92 80 83 87 89 80 84 91 93 Temp 82 86 89 89 87 83 82 81 81 85 86 87 85 83 82 81 81 86 90 91 87 84 Dewpt 76 76 75 75 75 76 76 76 76 76 75 75 75 74 76 76 76 76 76 76 76 76 RH 82 72 64 64 68 80 82 85 85 75 70 68 72 74 82 85 85 72 64 62 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 18 18 18 16 12 14 16 17 17 17 17 16 16 17 18 18 18 18 17 16 18 18 Wind gust 28 28 28 28 Clouds SC SC FW SC FW SC SC B1 B1 B1 SC SC SC SC SC SC SC SC SC B1 B1 B1 PoP 12hr 10 50 40 20 40 QPF 12hr 0.03 0.18-0.23 0.15 0.07 0.15-0.25 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS SC SC SC SC SC SC IS IS IS IS IS IS SC SC SC Obvis H H H H H H H H H H H H H Heat index 88 97 99 99 96 92 90 87 88 93 96 96 94 89 89 87 88 96101102 98 92 Max heat 99 103 102 92 96 99 98 91 100 106 105 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 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 90 81 90 80 91 Temp 81 86 89 84 82 87 90 84 82 87 90 83 81 87 91 83 Dewpt 76 75 74 74 75 75 75 75 76 76 75 75 75 75 75 75 PWind dir E E E E E E NE NE Wind char BZ BZ WY WY BZ BZ BZ BZ Avg clouds SC FW CL CL CL FW FW FW FW FW FW FW FW FW SC SC PoP 12hr 40 0 0 10 20 20 20 30 Rain shwrs SC IS IS IS IS IS IS IS IS IS IS IS $$ VIZ001-102000- St.Thomas...St. John...and Adjacent Islands- Including the cities of Anna`s Retreat, Charlotte Amalie, Charlotte Amalie East, Charlotte Amalie West, and Cruz Bay 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 87 94 74 80 82 83 85 91 74 80 82 84 89 93 Temp 81 85 87 87 85 83 82 80 81 84 85 85 84 82 81 80 81 85 88 89 86 83 Dewpt 76 76 75 75 75 76 76 76 76 76 76 75 76 75 76 76 76 76 76 76 76 76 RH 85 75 68 68 72 80 82 88 85 77 75 72 77 79 85 88 85 75 68 66 72 80 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 18 20 17 14 14 14 18 18 17 17 16 14 17 19 19 19 19 18 18 18 18 20 Wind gust 28 Clouds SC FW SC FW FW FW SC B2 B1 B1 SC SC SC SC SC SC SC SC SC B1 B1 SC PoP 12hr 10 50 40 10 40 QPF 12hr 0.02 0.24 0.11 0.04 0.13-0.20 Snow 12hr MM MM MM Rain shwrs IS IS IS SC SC SC SC SC SC IS IS IS IS IS IS SC SC IS Obvis H H H H H H H H H H H H H H Heat index 87 94 97 97 93 90 88 86 86 91 94 94 92 88 87 86 87 95 99 99 96 91 Max heat 101 106 106 94 98 103 102 93 100 107 106 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 89 80 88 80 88 80 88 Temp 80 85 89 83 80 85 88 83 80 85 88 83 80 85 88 82 Dewpt 76 75 74 75 75 75 75 76 76 76 75 76 75 76 75 75 PWind dir E E E E E E E NE Wind char BZ WY WY WY BZ BZ BZ BZ Avg clouds SC FW CL CL CL FW FW FW FW FW FW FW FW FW SC SC PoP 12hr 20 0 5 10 20 20 20 20 Rain shwrs IS IS IS IS IS IS IS IS IS IS IS IS $$ VIZ002-102000- St Croix- Including the cities of Christiansted, Frederiksted, Frederiksted Southeast, and Grove Place 231 AM AST Mon Aug 10 2026 Date Mon 08/10/26 Tue 08/11/26 Wed 08/12/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 89 94 80 83 86 91 80 84 90 93 Temp 81 86 88 89 86 83 82 80 81 84 86 86 84 82 81 80 81 86 89 90 87 83 Dewpt 76 77 76 75 75 77 77 77 77 76 76 76 76 76 77 77 77 77 77 77 77 77 RH 85 75 68 64 70 82 85 91 88 77 72 72 77 82 88 91 88 75 68 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 16 19 20 18 14 13 16 16 14 16 16 13 14 16 16 14 16 17 18 17 17 17 Wind gust 26 29 26 27 26 26 28 28 Clouds FW FW FW SC FW SC SC SC SC B1 SC B1 B1 SC SC SC SC SC SC B1 B1 SC PoP 12hr 10 40 40 10 40 QPF 12hr 0.02 0.09 0.13 0.04 0.12-0.19 Snow 12hr MM MM MM Rain shwrs IS IS IS IS SC SC IS SC SC SC SC IS IS IS IS IS IS SC SC IS Obvis H H H H H H H H H H H H H H H Heat index 88 96 99 99 95 91 89 86 87 92 95 96 93 89 88 86 87 96101102 98 92 Max heat 101 107 106 94 98 103 102 93 101 109 108 Heat Y Y Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 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 90 80 89 80 89 78 90 Temp 81 86 90 83 81 86 89 83 81 85 89 82 79 85 90 81 Dewpt 76 76 75 76 75 75 76 77 76 76 76 76 76 76 76 76 PWind dir E E E E E E E E Wind char BZ BZ WY WY BZ BZ BZ BZ Avg clouds SC FW CL CL CL FW FW FW FW FW FW FW FW FW SC SC PoP 12hr 20 0 10 10 20 20 20 20 Rain shwrs IS IS IS IS IS IS IS IS IS IS IS IS $$