Area Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
782 FOCA52 TJSJ 121831 AFMSJU Area Forecast Matrices National Weather Service San Juan PR 231 PM AST Sat Sep 12 2026 PRZ001-130800- San Juan and Vicinity- Including the cities of Bayamon, Carolina, Catano, Guaynabo, San Juan, Toa Alta, Toa Baja, and Trujillo Alto 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue 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 83 83 90 93 73 77 83 83 90 92 72 77 83 Temp 85 82 80 79 78 85 89 90 85 81 79 78 77 85 89 90 84 81 79 78 77 84 Dewpt 76 75 75 75 75 76 76 76 76 76 76 75 75 76 76 77 76 75 75 75 75 76 RH 75 79 85 88 91 75 66 64 75 85 91 91 94 75 66 66 77 82 88 91 94 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 12 9 8 8 8 9 12 14 13 8 6 5 5 8 12 13 10 5 5 5 6 11 Wind gust 25 Clouds CL SC B1 B1 SC SC FW FW SC SC FW SC SC FW FW B1 B1 CL CL FW FW SC PoP 12hr 40 30 10 40 10 QPF 12hr 0.09 0.05 0.02-0.07 0.03-0.45 0.02 Snow 12hr MM MM MM Rain shwrs IS SC SC IS SC IS IS IS IS IS IS IS SC SC IS IS IS Tstms IS IS Obvis H H H Heat index 95 89 84 82 80 95101103 94 88 83 80 94100102 94 86 82 93 Max heat 111 95 101 112 110 94 99 111 109 93 98 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 90 77 90 77 91 77 90 Temp 90 81 78 85 90 81 78 85 90 81 78 85 91 81 78 85 90 81 Dewpt 76 75 75 76 76 76 76 77 78 76 76 77 77 76 75 76 70 74 PWind dir E E E E SE SE E SE E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC FW FW SC SC FW FW SC B1 SC SC B1 SC SC SC SC SC PoP 12hr 50 10 20 30 30 40 40 10 20 Rain shwrs SC SC IS IS IS IS SC SC IS SC SC SC IS IS IS IS $$ PRZ002-130800- Northeast- Including the cities of Ceiba, Canovanas, Fajardo, Humacao, Loiza, Luquillo, Naguabo, and Rio Grande 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 78 83 75 88 93 67 77 83 75 88 93 67 77 83 Temp 84 81 80 79 78 84 87 88 83 81 79 78 77 83 87 88 83 80 79 78 77 83 Dewpt 74 73 74 74 74 75 74 74 75 75 75 74 74 75 74 74 75 74 74 74 74 74 RH 72 77 82 85 88 74 65 63 77 82 88 88 90 77 65 63 77 82 85 88 90 74 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 12 11 10 10 10 11 12 13 11 9 9 8 8 9 13 12 9 6 6 8 9 12 Wind gust 20 20 20 19 20 19 Clouds SC SC B1 B1 SC SC SC FW SC SC FW SC SC SC SC B1 B1 SC SC SC SC SC PoP 12hr 40 20 30 40 20 QPF 12hr 0.09 0.05 0.06-0.14 0.06-0.46 0.03-0.09 Snow 12hr MM MM MM Rain shwrs IS IS SC SC IS IS IS IS IS IS IS SC IS IS IS SC SC IS IS IS IS IS Tstms IS IS Obvis H H H Heat index 91 86 84 81 80 91 96 97 91 86 83 80 91 95 96 90 85 82 90 Max heat 105 94 98 104 103 94 96 104 102 93 96 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 78 88 77 87 77 88 77 88 Temp 88 81 78 84 88 80 78 83 87 80 78 83 88 81 78 83 88 80 Dewpt 74 73 74 75 75 75 75 76 75 75 75 75 75 74 74 75 73 74 PWind dir E E E E E E E E E Wind char GN LT GN GN GN GN GN LT GN Avg clouds SC SC FW FW SC SC FW FW B1 B2 B2 B2 B1 B1 SC SC SC SC PoP 12hr 50 30 30 30 60 60 50 30 30 Rain shwrs SC SC SC SC IS SC SC NM NM SC SC SC IS SC SC SC Tstms IS IS IS IS $$ PRZ003-130800- Southeast- Including the cities of Arroyo, Guayama, Maunabo, Patillas, Salinas, and Yabucoa 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue 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 78 83 79 89 94 69 77 83 78 88 94 69 77 83 Temp 84 81 79 78 78 84 88 89 84 81 79 78 77 83 87 88 83 80 78 77 77 83 Dewpt 74 73 74 73 73 73 73 72 74 74 74 74 73 74 73 73 74 73 73 73 73 74 RH 72 77 85 85 85 70 61 57 72 79 85 88 87 74 63 61 74 79 85 87 87 74 Wind dir E NE NE NE E E E E E E E E NE E E E E E E NE NE E Wind spd 12 9 9 8 9 10 13 14 12 9 8 8 6 8 13 12 8 5 5 6 8 10 Wind gust 25 19 20 26 28 24 19 28 27 20 Clouds FW SC SC SC SC FW SC CL FW SC FW SC SC FW FW SC SC FW FW FW FW SC PoP 12hr 20 20 20 10 20 QPF 12hr 0.00-0.09 0.02 0.03-0.10 0.01-0.26 0.01-0.08 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS Obvis H H H H H Heat index 92 86 83 81 90 95 96 90 85 82 90 95 95 89 84 81 89 Max heat 108 93 99 106 105 93 99 106 105 92 97 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 77 88 77 87 77 87 77 87 Temp 88 80 78 83 88 80 78 83 87 80 77 83 87 80 78 83 87 80 Dewpt 73 73 73 74 72 74 74 76 76 75 75 75 74 74 74 74 70 74 PWind dir E NE E E E E E E E Wind char GN LT GN GN GN GN GN LT GN Avg clouds SC SC FW FW SC FW CL FW SC B1 B1 B1 SC SC SC SC SC SC PoP 12hr 40 20 20 30 40 40 40 20 30 Rain shwrs SC SC IS IS SC SC SC SC SC SC IS IS IS IS IS Tstms IS IS IS $$ PRZ004-130800- Eastern Interior- Including the cities of Aguas Buenas, Caguas, Cayey, Cidra, Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 69 74 78 77 87 93 69 74 78 77 86 92 68 74 77 Temp 82 79 77 75 74 82 86 87 81 78 76 75 74 81 85 86 81 77 76 74 74 81 Dewpt 73 72 73 73 72 74 73 73 74 74 73 73 72 74 74 73 74 73 73 72 73 74 RH 74 79 87 94 93 77 65 63 79 88 90 94 93 79 70 65 79 87 90 93 97 79 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 11 5 4 4 5 8 11 12 10 5 4 4 3 5 11 10 6 3 4 4 3 8 Clouds FW SC SC B1 SC SC SC CL SC SC CL SC SC CL CL B1 B1 FW FW FW FW SC PoP 12hr 40 20 20 50 20 QPF 12hr 0.02-0.09 0.04 0.02-0.08 0.03-0.49 0.00-0.07 Snow 12hr MM MM MM Rain shwrs IS IS IS SC IS IS IS IS IS IS IS SC SC IS IS IS Tstms IS IS Obvis H H H H H Heat index 87 81 87 93 94 86 80 87 93 94 86 86 Max heat 105 89 98 105 104 88 97 105 104 86 96 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 74 87 74 86 74 87 74 87 Temp 86 78 75 81 87 78 75 81 86 78 75 81 87 78 75 81 87 78 Dewpt 73 72 72 74 73 74 73 75 75 74 73 75 74 73 73 74 68 73 PWind dir E E E E E E E E SE Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC FW FW SC FW CL FW B1 B1 B1 B1 B1 SC SC SC SC SC PoP 12hr 50 20 20 30 50 40 40 20 20 Rain shwrs SC SC IS IS IS SC SC SC SC SC SC SC IS IS IS IS Tstms IS IS $$ PRZ005-130800- North Central- Including the cities of Arecibo, Barceloneta, Dorado, Florida, Manati, Vega Alta, and Vega Baja 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue 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 77 83 85 90 94 73 76 83 85 90 93 72 75 83 Temp 85 81 79 78 77 85 89 90 84 80 78 77 76 84 89 90 84 80 78 76 76 84 Dewpt 75 75 75 75 74 76 77 77 76 76 75 75 74 76 77 77 77 76 75 74 75 76 RH 72 82 88 91 90 75 68 66 77 88 91 94 94 77 68 66 80 88 91 94 97 77 Wind dir NE E E E E E E NE E E SE SE SE E E E E E E E E E Wind spd 14 11 10 8 8 9 13 18 16 11 6 4 5 6 12 13 10 5 6 6 6 10 Wind gust 31 29 23 24 20 Clouds FW FW SC SC FW SC CL CL SC SC FW FW FW CL CL B1 B1 CL CL CL CL FW PoP 12hr 20 20 5 30 0 QPF 12hr 0.01-0.09 0.02-0.30 0.01 0.02-0.81 0 Snow 12hr MM MM MM Rain shwrs IS IS SC IS IS IS IS SC SC IS Tstms IS IS Obvis H H H H H Heat index 93 87 81 94102103 93 85 93101102 93 84 92 Max heat 111 95 101 113 111 95 100 112 110 94 99 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 90 76 90 76 90 76 90 Temp 90 80 77 84 90 80 77 84 90 80 77 84 90 80 76 84 90 80 Dewpt 77 75 74 76 77 76 75 77 78 77 76 77 78 76 75 77 73 74 PWind dir E E E E E E E SE E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC B1 SC FW SC SC SC SC SC B1 FW FW SC SC SC FW FW SC PoP 12hr 40 10 30 10 50 5 40 5 30 Rain shwrs SC SC IS IS IS IS IS IS IS NM IS IS IS SC IS IS IS SC Tstms IS IS IS IS $$ PRZ006-130800- Central Interior- Including the cities of Aibonito, Barranquitas, Ciales, Coamo, Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 73 78 75 85 93 63 72 77 75 84 92 63 72 77 Temp 80 77 75 74 73 80 84 85 80 76 74 73 72 79 83 84 79 76 74 73 72 79 Dewpt 71 71 72 72 71 72 72 71 72 72 72 72 71 72 73 72 72 71 71 71 71 72 RH 74 82 90 93 93 77 67 63 77 87 93 97 97 79 72 67 79 85 90 93 97 79 Wind dir NE NE E E E E E E E E E E E E E E E E E E E E Wind spd 11 5 4 3 3 6 10 12 10 5 3 4 3 4 9 9 6 4 3 3 3 6 Wind gust 23 26 28 23 27 26 Clouds FW FW FW FW FW FW CL FW SC SC CL FW FW CL CL B2 B2 CL CL CL CL FW PoP 12hr 5 20 10 50 0 QPF 12hr 0.00-0.09 0.02-0.42 0.01 0.03-1.03 0 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS SC IS IS SC SC Tstms IS IS Obvis H H H H H Heat index 84 83 89 90 82 82 89 89 82 82 Max heat 105 87 97 106 105 85 96 106 105 84 95 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 72 85 73 84 73 85 72 84 Temp 84 76 73 80 85 76 73 79 84 76 73 80 85 76 73 79 84 76 Dewpt 72 71 71 72 71 72 72 73 74 73 72 73 73 72 72 73 67 71 PWind dir E E E E E E E E SE Wind char GN LT GN LT GN LT GN LT LT Avg clouds SC B1 FW FW SC SC FW FW SC B1 SC SC SC SC FW FW SC SC PoP 12hr 60 5 30 10 40 5 30 5 20 Rain shwrs NM NM IS IS IS IS IS IS IS IS IS SC IS IS IS IS Tstms IS IS IS $$ PRZ007-130800- Ponce and Vicinity- Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas, Ponce, and Santa Isabel 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue 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 76 83 75 89 94 63 76 83 75 88 94 63 75 83 Temp 84 80 78 77 76 84 88 89 83 80 78 77 76 83 87 88 83 79 77 76 75 83 Dewpt 73 72 72 70 70 70 71 72 73 72 71 71 70 71 72 72 73 73 71 71 71 71 RH 70 77 82 79 82 63 57 57 72 77 79 82 82 67 61 59 72 82 82 85 87 67 Wind dir E NE NE NE NE E E SE E E NE NE NE E E E E E E NE NE E Wind spd 11 6 5 4 4 6 12 14 12 9 4 4 3 4 12 12 9 6 5 4 4 5 Wind gust 26 26 32 27 23 28 29 21 Clouds SC FW CL CL CL CL CL FW SC SC CL FW FW CL CL B1 B1 CL CL CL CL FW PoP 12hr 0 30 20 40 0 QPF 12hr 0 0.01-0.47 0.02 0.01-1.01 0 Snow 12hr MM MM MM Rain shwrs IS IS IS SC IS SC SC Tstms IS IS IS Obvis H H H H H Heat index 90 84 80 88 93 96 89 83 80 87 93 94 88 82 87 Max heat 108 94 94 107 105 92 94 106 104 93 94 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 88 76 87 76 88 76 87 Temp 88 79 76 83 88 80 77 83 87 79 76 83 88 79 76 82 87 79 Dewpt 73 72 70 71 70 72 71 73 75 74 73 73 73 73 71 72 70 73 PWind dir E E E E E E E E SE Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC B1 FW FW SC SC FW FW SC SC FW FW SC SC FW FW FW SC PoP 12hr 50 5 30 0 30 5 30 5 20 Rain shwrs SC SC IS IS IS SC SC SC IS IS IS IS IS IS IS IS Tstms IS $$ PRZ008-130800- Northwest- Including the cities of Aguadilla, Camuy, Hatillo, Isabela, and Quebradillas 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 72 75 83 86 88 94 71 75 83 85 88 94 70 74 83 Temp 83 80 78 76 75 83 87 88 82 79 77 76 75 82 87 88 82 78 76 75 74 82 Dewpt 75 74 74 73 73 74 76 76 76 75 74 73 73 75 76 76 76 75 74 73 73 74 RH 77 82 88 90 94 74 70 68 82 88 90 90 94 79 70 68 82 91 94 94 97 77 Wind dir E E E E E E E NE E E E E E E E E E E E E E E Wind spd 16 13 12 9 8 11 13 16 13 13 9 6 6 8 11 10 6 5 6 8 9 12 Wind gust 25 24 19 28 27 25 20 18 23 Clouds SC CL FW CL CL FW FW FW B1 SC FW CL CL CL CL B1 B1 CL CL CL CL CL PoP 12hr 5 40 10 40 0 QPF 12hr 0 0.03-0.41 0.01 0.07-0.89 0 Snow 12hr MM MM MM Rain shwrs IS IS IS IS SC IS SC SC Tstms IS IS Obvis H H H H H Heat index 90 83 90 98 99 90 81 89 97 98 89 80 88 Max heat 106 95 96 109 107 93 96 109 107 93 95 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 74 88 75 88 74 88 74 88 Temp 88 78 75 83 88 79 76 83 88 79 75 82 88 78 75 82 88 78 Dewpt 76 75 73 74 76 76 74 75 77 76 74 75 77 76 73 75 74 74 PWind dir E E E E E E E E E Wind char GN LT GN GN GN GN GN LT GN Avg clouds SC B1 SC SC SC B1 SC SC SC B1 FW FW SC B2 SC SC SC B1 PoP 12hr 60 20 50 20 70 5 60 30 50 Rain shwrs NM NM IS IS SC SC IS IS NM NM NM NM SC SC SC SC Tstms IS IS IS IS IS IS IS IS $$ PRZ009-130800- Western Interior- Including the cities of Adjuntas, Lares, Las Marias, Maricao, Sabana Grande, San Sebastian, and Utuado 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue 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 73 77 75 86 94 66 72 76 75 85 94 65 72 76 Temp 81 77 75 74 73 80 85 86 80 76 74 73 72 80 84 85 79 76 74 73 72 79 Dewpt 72 72 71 71 70 71 73 73 73 72 72 71 70 72 73 73 73 72 72 70 70 72 RH 74 85 87 90 90 74 67 65 79 87 93 93 93 77 70 67 82 87 93 90 93 79 Wind dir NE NE E E E E E E E E E E E E E E E E E E E E Wind spd 9 6 5 4 3 5 8 8 5 5 4 3 3 3 5 5 3 4 4 4 4 5 Wind gust 16 24 28 20 24 24 Clouds SC FW FW CL CL CL CL B1 B1 SC CL CL CL CL CL B2 B2 CL CL CL CL CL PoP 12hr 0 50 20 70 0 QPF 12hr 0 0.09-0.62 0.02 0.28-1.10 0 Snow 12hr MM MM MM Rain shwrs SC IS SC SC IS NM NM Tstms IS IS IS IS Obvis H H H H H Heat index 84 83 91 93 83 83 90 92 83 82 Max heat 107 87 94 111 110 85 95 111 109 84 93 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 72 86 72 85 73 85 72 85 Temp 85 76 73 80 86 76 73 80 85 76 73 80 85 76 73 80 85 76 Dewpt 73 72 70 71 73 73 72 73 75 73 72 73 74 73 71 72 70 72 PWind dir E E E E E E E E E Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B2 SC SC SC B1 FW FW SC B1 FW FW SC B1 SC SC FW SC PoP 12hr 70 10 60 5 70 5 60 20 40 Rain shwrs NM NM IS IS NM NM IS IS NM NM NM NM IS IS SC SC Tstms IS IS IS IS IS IS IS IS $$ PRZ010-130800- Mayaguez and Vicinity- Including the cities of Aguada, Anasco, Hormigueros, Mayaguez, Moca, Rincon, and San German 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 76 83 77 91 94 68 75 83 76 91 94 67 75 83 Temp 84 80 78 77 76 85 90 91 84 80 78 76 76 84 89 91 84 80 77 76 75 84 Dewpt 76 75 74 73 72 74 76 77 77 76 75 73 72 75 76 77 77 75 75 73 73 74 RH 77 85 88 87 87 70 64 64 80 88 91 90 87 74 66 64 80 85 94 90 94 72 Wind dir E NE E E E E E E E E E E E E E E E E E NE E E Wind spd 10 11 11 8 6 6 6 8 6 9 6 6 5 6 6 5 5 8 8 6 8 10 Wind gust 21 27 27 21 19 19 18 20 17 20 17 20 17 16 19 21 17 23 24 Clouds B1 FW FW CL CL CL FW SC B1 SC FW CL CL CL CL B2 B2 FW FW CL CL FW PoP 12hr 5 50 20 70 0 QPF 12hr 0.01 0.05-0.62 0.01-0.08 0.02-1.10 0.00-0.08 Snow 12hr MM MM MM Rain shwrs SC IS IS SC SC IS IS NM NM Tstms IS IS IS IS Obvis H H H H H Heat index 94 85 92101104 94 85 92101103 93 83 91 Max heat 109 94 100 113 111 94 100 113 111 93 98 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 75 91 75 90 75 91 75 90 Temp 90 80 76 84 91 80 76 84 90 80 76 84 91 80 76 84 90 80 Dewpt 76 75 73 74 76 76 74 75 78 76 74 76 77 76 74 75 73 74 PWind dir E E E E E E E E E Wind char LT LT GN LT GN LT LT LT LT Avg clouds SC B1 SC SC SC B1 SC FW SC B1 FW FW SC B1 SC SC FW SC PoP 12hr 70 20 60 5 70 5 60 30 40 Rain shwrs NM NM IS IS NM NM IS IS NM NM NM NM SC SC SC SC Tstms IS IS IS IS IS IS IS IS $$ PRZ011-130800- Southwest- Including the cities of Cabo Rojo, Guanica, and Lajas 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue 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 83 86 93 94 73 76 83 86 93 94 73 75 83 Temp 85 81 78 76 76 86 91 93 85 81 78 77 76 85 91 93 85 81 78 76 76 85 Dewpt 77 76 74 71 70 71 72 74 75 74 73 72 71 71 73 74 75 75 74 73 72 72 RH 77 85 88 85 82 61 54 54 72 79 85 85 85 63 56 54 72 82 88 90 87 65 Wind dir E NE E E NE E E SE E E E E NE E E SE SE E E NE NE E Wind spd 6 6 5 5 4 5 12 17 11 12 10 6 5 4 12 13 11 11 11 5 4 5 Wind gust 19 27 34 25 25 24 27 28 23 25 25 Clouds B1 SC FW FW FW CL CL FW B1 SC CL CL FW CL CL B1 B1 CL CL CL CL FW PoP 12hr 10 30 20 30 0 QPF 12hr 0.01 0.02-0.55 0.02 0.03-0.92 0 Snow 12hr MM MM MM Rain shwrs SC IS IS SC IS SC SC Tstms IS IS IS Obvis H H H H H Heat index 96 87 91 99103 94 86 80 91100103 94 86 91 Max heat 111 95 95 111 110 93 95 110 109 93 94 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 92 76 93 76 92 76 92 76 92 Temp 92 81 77 86 93 81 77 85 92 81 77 86 92 81 77 85 92 81 Dewpt 75 74 72 73 73 74 72 75 78 77 75 75 76 76 73 73 74 74 PWind dir E E E E E E SE E SE Wind char GN LT GN LT BZ GN BZ LT GN Avg clouds SC B1 SC SC FW SC FW FW FW SC FW FW SC SC SC FW FW SC PoP 12hr 40 20 20 0 30 5 30 10 20 Rain shwrs SC SC IS IS IS IS SC SC IS IS SC SC IS IS IS IS $$ PRZ012-130800- Culebra- Including the city of Culebra 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 82 86 89 94 81 86 88 94 81 Temp 86 84 83 82 82 86 88 89 86 84 82 82 81 85 88 88 85 83 82 81 81 85 Dewpt 76 76 76 76 76 77 77 77 77 77 77 76 76 77 76 77 77 76 76 76 76 77 RH 72 77 80 82 82 75 70 68 75 80 85 82 85 77 68 70 77 80 82 85 85 77 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 17 18 19 18 17 16 16 16 16 17 18 16 14 16 16 14 13 12 12 12 17 18 Clouds SC SC B1 SC SC SC SC SC SC SC SC SC B1 B1 B1 SC SC SC SC SC SC SC PoP 12hr 30 20 40 40 20 QPF 12hr 0.08 0.06 0.15 0.09 0.06 Snow 12hr MM MM MM Rain shwrs IS IS SC IS IS IS IS IS IS IS IS SC SC SC SC IS IS IS IS IS IS IS Obvis H H H H Heat index 96 93 91 90 89 96100101 96 93 91 89 88 96 99100 96 92 90 88 88 95 Max heat 108 97 100 107 105 95 100 106 105 94 99 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 82 89 81 88 81 88 81 88 Temp 88 84 82 86 89 84 82 85 88 83 81 85 88 84 81 85 88 83 Dewpt 76 76 76 77 77 77 77 77 77 77 77 77 77 77 76 77 75 75 PWind dir E E E E E E E E E Wind char BZ GN BZ BZ BZ BZ BZ GN GN Avg clouds SC B1 SC SC SC FW FW SC B1 B2 B2 B2 B1 B1 SC SC B1 B1 PoP 12hr 40 30 30 40 60 60 50 30 40 Rain shwrs SC SC IS SC SC IS IS SC NM NM NM NM SC SC SC SC SC SC Tstms IS IS IS IS $$ PRZ013-130800- Vieques- Including the city of Vieques 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue 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 80 85 88 92 77 80 83 Temp 86 83 82 81 81 86 88 89 85 83 82 81 80 85 88 88 85 83 81 81 80 85 Dewpt 75 74 75 75 75 76 75 75 75 75 75 75 75 76 75 74 75 74 75 74 75 75 RH 70 74 79 82 82 72 66 64 72 77 79 82 85 75 66 63 72 74 82 79 85 72 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 17 18 19 18 17 16 16 16 16 17 17 14 14 16 16 14 12 11 11 13 17 17 Clouds SC SC B1 SC SC SC FW CL FW SC SC SC B1 B1 B1 SC SC B1 B1 SC SC SC PoP 12hr 30 20 40 40 40 QPF 12hr 0.07 0.03 0.15 0.09-0.17 0.10 Snow 12hr MM MM MM Rain shwrs IS IS SC IS IS IS IS IS IS IS SC SC SC SC IS IS SC SC SC SC IS Obvis H H H H Heat index 94 90 89 87 86 95 97 98 94 91 88 87 86 94 97 97 93 89 87 85 85 94 Max heat 102 94 98 102 101 93 97 102 101 92 96 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 85 89 83 81 85 89 83 81 85 89 83 81 85 89 83 Dewpt 74 74 75 76 75 75 76 76 75 75 76 76 75 75 75 76 75 75 PWind dir E E E E E E E E E Wind char BZ GN BZ BZ BZ BZ BZ GN GN Avg clouds SC B1 SC SC SC FW FW SC B1 B2 B2 B2 B1 B1 SC SC B1 B1 PoP 12hr 40 30 30 40 60 60 50 30 40 Rain shwrs SC SC IS SC SC IS SC NM NM NM NM SC SC SC SC SC SC Tstms IS IS IS IS $$ VIZ001-130800- St.Thomas...St. John...and Adjacent Islands- Including the cities of Anna`s Retreat, Charlotte Amalie, Charlotte Amalie East, Charlotte Amalie West, and Cruz Bay 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 76 81 83 85 87 93 75 80 83 85 87 93 75 80 83 Temp 85 83 82 81 81 85 87 87 84 83 81 81 80 84 86 87 84 82 81 80 80 84 Dewpt 75 75 76 76 76 76 75 75 75 76 76 76 76 76 75 74 75 75 76 75 75 75 RH 72 77 82 85 85 75 68 68 74 80 85 85 88 77 70 65 74 79 85 85 85 74 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 17 18 19 18 17 16 17 16 16 17 17 16 16 17 17 13 12 13 13 12 17 19 Clouds SC SC SC SC FW SC CL SC SC SC SC SC SC B1 B1 SC SC FW FW SC SC SC PoP 12hr 30 20 40 40 20 QPF 12hr 0.06 0.04 0.12 0.08 0.04 Snow 12hr MM MM MM Rain shwrs IS IS SC IS IS IS IS IS IS IS IS SC SC SC IS IS IS IS IS Obvis H H H H Heat index 93 90 88 87 87 93 96 96 93 89 88 87 86 93 95 95 92 89 87 86 85 92 Max heat 105 94 100 105 104 93 99 105 104 93 97 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 81 87 80 87 81 87 80 87 Temp 87 83 81 84 87 82 80 84 87 82 81 84 87 82 80 84 87 82 Dewpt 74 75 76 76 75 76 77 76 76 76 76 76 75 76 76 76 74 75 PWind dir E E E E E E E E E Wind char BZ BZ BZ BZ BZ BZ GN GN GN Avg clouds SC SC B1 B1 SC FW SC SC B1 B2 B2 B2 B1 B1 SC SC B1 SC PoP 12hr 40 40 30 40 60 60 40 30 40 Rain shwrs IS SC SC SC SC IS IS SC NM NM NM NM SC SC IS SC SC SC Tstms IS IS IS IS $$ VIZ002-130800- St Croix- Including the cities of Christiansted, Frederiksted, Frederiksted Southeast, and Grove Place 231 PM AST Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue 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 88 94 77 80 83 85 88 94 77 80 83 Temp 85 83 82 81 81 85 87 88 85 83 81 81 80 85 87 88 85 82 81 80 80 85 Dewpt 76 76 76 76 76 76 76 76 76 76 77 76 76 76 76 76 76 76 76 76 76 76 RH 75 80 82 85 85 75 70 68 75 80 88 85 88 75 70 68 75 82 85 88 88 75 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 17 17 18 16 16 16 17 17 16 14 16 13 14 14 17 16 12 10 10 11 14 18 Clouds SC SC SC SC FW FW FW FW SC SC FW SC SC B1 B1 SC SC SC SC SC SC SC PoP 12hr 30 10 40 40 30 QPF 12hr 0.06 0.03 0.09 0.08 0.09 Snow 12hr MM MM MM Rain shwrs SC IS SC IS IS IS IS IS IS IS IS SC SC SC IS IS SC SC SC SC IS Obvis H H H Heat index 95 91 89 87 86 95 98 99 94 91 89 87 86 94 98 98 93 90 88 86 85 93 Max heat 106 95 101 108 106 93 100 108 107 93 99 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 80 88 80 88 Temp 88 83 81 85 88 82 80 85 88 83 80 85 88 83 80 85 88 83 Dewpt 75 76 76 76 76 77 77 77 77 77 77 77 76 76 76 76 74 74 PWind dir E E E E E E E E E Wind char BZ GN BZ BZ BZ GN GN GN GN Avg clouds SC SC SC SC SC FW SC B1 B1 B2 B2 B1 SC SC SC SC SC SC PoP 12hr 20 20 30 40 60 60 20 20 40 Rain shwrs IS IS IS IS IS SC SC SC NM NM NM IS IS IS IS IS SC SC Tstms IS IS IS IS $$