Area Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
369 FOCA52 TJSJ 150631 AFMSJU Area Forecast Matrices National Weather Service San Juan PR 231 AM AST Tue Sep 15 2026 PRZ001-152000- San Juan and Vicinity- Including the cities of Bayamon, Carolina, Catano, Guaynabo, San Juan, Toa Alta, Toa Baja, and Trujillo Alto 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 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 90 92 73 77 82 84 91 93 73 77 82 83 90 93 Temp 77 84 89 90 84 81 79 78 77 85 90 91 85 81 79 78 77 85 89 90 85 82 Dewpt 75 76 77 76 77 76 76 75 75 76 77 77 78 77 77 77 76 78 79 78 78 77 RH 94 77 68 64 80 85 91 91 94 75 66 64 80 88 94 97 97 80 73 68 80 85 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 6 8 12 14 12 8 8 6 6 8 13 13 12 8 8 8 5 10 14 16 11 8 Wind gust 25 25 Clouds B1 B1 B1 B1 B2 SC B1 SC SC B1 B1 SC SC SC SC B1 B1 B1 B1 B2 B2 B2 PoP 12hr 50 40 50 50 60 QPF 12hr 0.14-1.22 0.10-0.19 0.08-0.46 0.08-0.45 0.28-0.39 Snow 12hr MM MM MM Rain shwrs SC SC SC SC SC SC SC SC IS SC SC SC SC SC SC SC SC SC SC SC SC SC Tstms IS IS IS IS IS IS Heat index 94100101 94 87 83 80 95102103 96 89 84 80 96104105 97 89 Max heat 99 107 107 93 101 107 107 94 102 111 111 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 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 77 90 76 90 76 90 Temp 79 86 91 82 78 85 90 81 77 84 90 80 77 84 90 81 Dewpt 77 77 77 76 76 77 77 76 75 76 77 76 75 77 77 76 PWind dir SE E SE E SE SE SE SE Wind char LT GN LT GN LT GN LT GN Avg clouds B2 B1 SC SC SC SC SC B1 SC SC SC B1 SC SC B1 SC PoP 12hr 60 40 20 50 30 50 30 40 Rain shwrs SC SC IS SC IS IS IS SC SC IS IS SC IS IS SC SC Tstms IS IS IS $$ PRZ002-152000- Northeast- Including the cities of Ceiba, Canovanas, Fajardo, Humacao, Loiza, Luquillo, Naguabo, and Rio Grande 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 87 92 68 78 82 75 88 93 67 77 82 75 87 93 Temp 77 83 86 87 83 81 79 78 78 84 87 88 83 81 79 78 77 83 86 87 83 81 Dewpt 74 75 75 74 75 74 74 74 74 75 75 75 76 75 76 75 76 76 76 76 76 75 RH 90 77 70 65 77 79 85 88 88 74 68 66 80 82 91 91 97 80 72 70 80 82 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 9 10 12 12 11 9 9 10 9 10 12 10 11 8 10 9 10 13 14 13 12 10 Wind gust 19 20 20 19 20 20 18 21 20 20 24 24 20 Clouds B1 B1 B1 B2 B2 B1 B2 B1 SC B1 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 50 50 60 70 60 QPF 12hr 0.14-0.27 0.13-0.19 0.23-0.48 0.38-0.57 0.34-0.41 Snow 12hr MM MM MM Rain shwrs SC SC SC SC SC SC SC SC IS SC SC SC SC NM NM NM NM NM NM NM NM NM Tstms IS IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 90 95 96 90 86 83 80 80 91 96 98 92 86 83 80 91 97 98 92 87 Max heat 96 103 102 92 98 106 105 93 98 106 105 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 88 77 88 77 88 77 88 Temp 79 84 88 81 78 83 88 80 77 83 88 80 77 83 88 80 Dewpt 75 76 75 74 74 75 74 74 74 75 74 74 74 75 75 74 PWind dir E E E E SE SE SE SE Wind char GN GN LT LT LT GN LT GN Avg clouds B2 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC PoP 12hr 60 30 40 40 40 50 50 40 Rain shwrs NM NM IS SC SC SC SC SC SC SC SC SC SC SC SC SC Tstms IS IS $$ PRZ003-152000- Southeast- Including the cities of Arroyo, Guayama, Maunabo, Patillas, Salinas, and Yabucoa 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 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 94 69 77 82 79 88 94 69 77 82 77 87 93 Temp 77 83 86 87 83 80 79 78 77 84 87 88 84 80 79 78 77 83 86 87 83 80 Dewpt 73 74 73 73 74 74 74 74 73 74 74 74 75 75 75 75 75 76 76 75 76 75 RH 87 74 65 63 74 82 85 88 87 72 65 63 74 85 88 91 94 80 72 68 80 85 Wind dir NE E E E E NE NE NE E E E E E E E E E E E E E E Wind spd 8 8 13 13 11 8 9 9 6 9 13 12 11 8 8 8 8 11 13 12 11 9 Wind gust 28 29 21 17 28 28 24 21 28 25 24 Clouds SC SC B1 B1 B1 SC B1 SC SC SC SC FW FW B1 B1 B1 B1 B2 B2 B2 B2 B2 PoP 12hr 40 30 50 60 60 QPF 12hr 0.08-0.27 0.02-0.19 0.01-0.34 0.16-0.56 0.30-0.41 Snow 12hr MM MM MM Rain shwrs IS IS SC SC SC IS SC SC IS IS SC IS IS SC SC SC SC NM NM NM NM NM Tstms IS IS IS IS IS IS IS IS IS IS Heat index 89 94 95 89 84 82 91 96 97 91 85 82 90 95 96 91 85 Max heat 97 106 105 91 99 107 107 91 100 109 106 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 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 88 77 88 76 87 76 87 Temp 78 84 88 80 78 83 88 80 77 82 87 79 77 82 87 80 Dewpt 75 75 73 75 74 75 74 74 74 74 74 74 74 74 74 74 PWind dir E E NE E E E E E Wind char GN GN LT GN LT GN LT GN Avg clouds B2 B1 SC FW SC SC SC B1 B1 SC SC SC SC SC B1 SC PoP 12hr 60 20 20 40 40 30 40 40 Rain shwrs NM NM IS IS IS IS SC SC SC SC IS SC SC SC SC SC Tstms IS IS $$ PRZ004-152000- Eastern Interior- Including the cities of Aguas Buenas, Caguas, Cayey, Cidra, Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 86 92 69 74 78 78 87 93 69 74 78 76 86 92 Temp 74 81 85 86 81 78 76 75 74 82 86 87 82 78 76 75 74 81 85 86 81 78 Dewpt 72 74 74 74 74 73 74 73 72 74 74 74 75 74 75 74 74 76 76 75 76 74 RH 93 79 70 68 79 85 94 94 93 77 68 65 79 88 97 97100 85 75 70 85 88 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 4 5 10 12 9 4 4 5 3 5 11 10 10 4 5 4 4 10 12 12 10 6 Clouds B1 SC B1 B1 B2 FW SC SC SC B1 B1 SC SC B1 B1 B1 B1 B2 B2 B2 B2 B2 PoP 12hr 50 40 50 50 60 QPF 12hr 0.11-1.22 0.02-0.19 0.03-0.47 0.12-0.53 0.28-0.41 Snow 12hr MM MM MM Rain shwrs SC SC SC SC SC IS SC SC IS SC SC IS IS SC SC SC SC SC SC SC SC NM Tstms IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 86 92 93 86 88 94 95 88 80 87 94 95 87 80 Max heat 96 106 104 87 98 107 107 89 99 109 108 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 87 74 87 73 86 73 86 Temp 76 82 87 78 75 81 87 77 74 81 86 77 74 81 86 77 Dewpt 74 75 73 73 73 74 74 73 72 74 74 73 72 74 74 73 PWind dir E E E E SE SE SE SE Wind char LT LT LT LT LT LT LT GN Avg clouds B2 B1 SC SC SC SC B1 B1 B1 SC SC B1 SC SC B1 SC PoP 12hr 60 30 20 50 30 40 30 40 Rain shwrs NM NM IS IS IS IS SC SC SC SC IS SC SC SC SC SC Tstms IS IS IS $$ PRZ005-152000- North Central- Including the cities of Arecibo, Barceloneta, Dorado, Florida, Manati, Vega Alta, and Vega Baja 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 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 93 73 76 82 85 90 94 73 76 82 85 91 94 Temp 76 84 88 89 84 80 78 77 76 84 89 90 84 80 78 77 76 85 90 91 84 81 Dewpt 74 76 77 77 77 76 76 75 74 76 77 77 78 77 77 76 75 78 79 79 78 77 RH 94 77 70 68 80 88 94 94 94 77 68 66 82 91 97 97 97 80 70 68 82 88 Wind dir SE E E E E E E E E E E NE E E E E E E E E E E Wind spd 8 6 13 17 14 11 10 8 6 8 13 17 16 11 9 6 6 6 11 10 11 8 Wind gust 31 27 21 31 31 23 21 24 21 Clouds B1 SC SC B1 B1 SC SC SC FW SC SC SC SC FW FW SC SC SC SC B2 B2 SC PoP 12hr 50 20 30 5 70 QPF 12hr 0.08-1.27 0.01-0.15 0.03-0.73 0.02-0.15 0.28-1.30 Snow 12hr MM MM MM Rain shwrs SC IS SC SC SC IS IS IS IS IS IS IS IS IS IS IS IS NM NM SC Tstms IS IS IS IS IS Heat index 93101102 93 85 94102103 95 87 80 96106107 96 87 Max heat 99 107 107 93 101 107 107 94 102 111 111 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 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 75 89 74 90 Temp 77 85 91 80 77 84 90 79 76 83 89 79 75 83 90 79 Dewpt 76 77 78 77 75 77 78 76 74 76 78 76 74 77 78 76 PWind dir E E SE E SE E SE E Wind char LT GN LT GN LT GN LT GN Avg clouds SC SC SC SC FW FW SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 20 40 5 60 10 60 10 50 Rain shwrs SC SC SC SC IS IS NM NM IS IS IS IS IS IS SC SC Tstms IS IS IS IS IS $$ PRZ006-152000- Central Interior- Including the cities of Aibonito, Barranquitas, Ciales, Coamo, Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 84 92 64 73 77 75 85 93 64 73 77 75 84 92 Temp 72 79 83 84 79 76 74 73 73 80 84 85 80 77 75 74 73 80 83 84 79 77 Dewpt 71 73 73 72 72 72 72 72 71 72 72 72 73 73 73 73 72 74 75 74 74 73 RH 97 82 72 67 79 87 93 97 93 77 67 65 79 87 94 97 97 82 77 72 85 87 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 3 4 10 11 9 5 4 4 3 5 10 11 10 5 5 4 3 5 10 11 9 4 Wind gust 27 29 20 27 28 21 27 24 20 Clouds FW FW B1 B2 B2 FW FW FW FW SC B1 SC SC FW FW SC SC SC SC B2 B2 B1 PoP 12hr 70 20 50 20 60 QPF 12hr 0.08-1.39 0.00-0.11 0.01-0.46 0.02-0.18 0.27-1.29 Snow 12hr MM MM MM Rain shwrs IS IS SC NM NM IS IS SC IS IS IS IS IS IS IS IS NM NM SC Tstms IS IS IS IS IS IS Heat index 82 88 89 82 83 90 91 84 83 90 91 83 Max heat 95 106 104 86 96 107 107 87 98 111 108 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 85 73 84 72 84 71 84 Temp 74 80 85 76 73 80 84 76 73 79 84 75 72 79 84 75 Dewpt 73 74 72 72 72 73 73 72 71 73 73 72 71 73 73 72 PWind dir E E E E SE SE SE SE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 SC SC SC FW FW SC B1 SC SC SC B1 SC SC SC SC PoP 12hr 50 30 5 60 10 60 5 50 Rain shwrs SC SC IS SC IS NM NM IS IS NM NM IS IS SC SC Tstms IS IS IS IS $$ PRZ007-152000- Ponce and Vicinity- Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas, Ponce, and Santa Isabel 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 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 63 76 82 75 89 94 64 76 82 75 87 94 Temp 75 83 87 88 83 79 78 77 76 83 88 89 83 80 78 77 76 83 86 87 83 80 Dewpt 71 71 72 73 73 73 72 72 71 71 72 73 74 74 73 73 72 74 75 74 74 74 RH 87 67 61 61 72 82 82 85 85 67 59 59 74 82 85 87 87 74 70 65 74 82 Wind dir NE E E SE E E NE NE E E E E E E E E E E E E E E Wind spd 4 4 12 13 9 6 5 5 5 5 11 13 10 6 6 5 5 5 12 11 10 6 Wind gust 28 32 24 28 31 25 28 24 23 Clouds FW FW FW B1 B1 CL FW FW FW FW SC SC SC FW FW SC SC SC SC B2 B2 B1 PoP 12hr 50 5 20 10 50 QPF 12hr 0.02-1.24 0.01 0.00-0.58 0.02-0.18 0.21-0.60 Snow 12hr MM MM MM Rain shwrs IS SC SC IS IS IS IS IS IS IS IS IS IS IS SC SC SC Tstms IS IS IS IS Heat index 87 93 95 88 83 80 88 94 96 90 84 81 89 95 95 89 84 Max heat 94 105 104 91 95 105 105 92 97 109 106 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 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 88 75 87 75 87 Temp 77 83 88 80 77 83 88 79 76 82 87 78 76 82 87 79 Dewpt 73 73 73 74 72 72 74 74 72 73 73 73 72 72 74 73 PWind dir E E E E E E E SE Wind char LT GN LT LT LT LT LT GN Avg clouds B1 SC SC SC CL FW SC B1 FW FW SC SC FW FW SC SC PoP 12hr 30 20 5 50 5 50 5 40 Rain shwrs SC SC IS IS IS IS SC IS IS SC SC IS IS SC SC Tstms IS $$ PRZ008-152000- Northwest- Including the cities of Aguadilla, Camuy, Hatillo, Isabela, and Quebradillas 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 88 94 71 74 82 85 89 94 71 75 82 85 89 94 Temp 74 82 87 88 82 79 77 75 75 83 88 89 83 79 77 76 75 83 88 89 83 79 Dewpt 73 75 76 76 76 76 75 74 73 74 76 76 77 76 76 75 74 76 78 78 77 76 RH 97 79 70 68 82 91 94 97 94 74 68 66 82 91 97 97 97 80 72 70 82 91 Wind dir E E E NE E E E E E E E NE E E E E E E E E E E Wind spd 9 9 13 14 12 12 11 10 9 9 12 13 14 13 10 8 8 6 6 5 6 9 Wind gust 19 19 28 25 24 20 28 28 26 Clouds SC FW FW B2 B2 SC SC FW CL FW FW B2 B2 FW FW FW FW FW FW OV OV SC PoP 12hr 70 20 60 5 70 QPF 12hr 0.08-1.27 0.00-0.06 0.18-0.81 0.02 1.29 Snow 12hr MM MM MM Rain shwrs SC IS NM NM IS IS IS IS NM NM NM NM IS Tstms IS IS IS IS IS IS Heat index 88 97 98 89 80 89 98 99 91 82 91102103 92 82 Max heat 95 107 107 92 95 107 107 93 98 111 111 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 89 74 88 74 87 73 88 Temp 76 83 89 79 75 82 88 78 75 82 87 78 74 82 88 78 Dewpt 74 75 77 76 74 75 76 75 73 75 76 75 73 75 76 76 PWind dir E E E E SE E SE E Wind char LT GN LT LT LT LT LT GN Avg clouds SC SC SC B2 SC FW SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 20 70 10 60 20 60 20 50 Rain shwrs IS IS NM NM IS IS NM NM IS IS NM NM IS IS SC SC Tstms IS IS IS IS IS IS $$ PRZ009-152000- Western Interior- Including the cities of Adjuntas, Lares, Las Marias, Maricao, Sabana Grande, San Sebastian, and Utuado 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 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 94 66 72 77 75 86 94 67 73 77 75 85 94 Temp 72 80 84 85 79 76 74 73 72 80 85 86 80 77 75 74 73 80 84 85 80 77 Dewpt 70 72 73 74 73 72 72 71 70 72 73 73 73 73 73 72 72 73 76 76 74 73 RH 93 77 70 70 82 87 93 93 93 77 67 65 79 87 94 93 97 79 77 75 82 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 4 3 8 6 4 4 5 4 4 4 5 5 4 5 5 4 3 3 6 6 5 4 Wind gust 23 26 20 26 14 25 24 23 Clouds FW CL SC OV OV FW FW CL CL FW SC B2 B2 FW FW FW FW FW FW B2 B2 SC PoP 12hr 70 5 70 5 70 QPF 12hr 0.08-1.27 0.02 0.08-0.85 0.02 0.21-1.29 Snow 12hr MM MM MM Rain shwrs IS IS NM NM IS SC NM NM IS IS IS IS NM NM IS Tstms IS IS IS IS IS IS Heat index 82 90 92 83 84 92 93 85 84 92 94 84 Max heat 94 107 107 87 95 107 107 89 97 111 111 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 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 86 72 85 72 85 71 85 Temp 74 81 86 77 73 80 85 76 73 79 85 75 72 79 85 76 Dewpt 72 73 74 73 71 72 74 73 71 73 74 72 71 73 74 73 PWind dir E E E E SE SE SE E Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 FW FW SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 20 70 0 60 10 60 10 50 Rain shwrs IS IS IS NM IS IS NM NM IS IS NM NM IS IS SC SC Tstms IS IS IS IS IS IS $$ PRZ010-152000- Mayaguez and Vicinity- Including the cities of Aguada, Anasco, Hormigueros, Mayaguez, Moca, Rincon, and San German 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 90 94 68 75 82 78 91 94 69 76 82 77 91 94 Temp 75 84 89 90 84 80 78 76 76 84 90 91 85 80 78 77 76 84 89 91 84 80 Dewpt 72 74 76 77 77 76 75 74 72 75 76 76 77 77 76 75 74 76 79 79 78 77 RH 90 72 66 66 80 88 91 94 87 74 64 62 77 91 94 94 94 77 73 68 82 91 Wind dir NE E E E E NE E E E E E E E E E E E E E E E E Wind spd 6 6 6 8 5 6 6 6 6 5 4 5 6 9 8 6 6 4 5 6 5 6 Wind gust 18 19 18 19 19 19 16 17 18 23 23 17 23 18 19 20 18 Clouds FW FW FW B2 B2 SC FW CL CL CL FW B2 B2 FW FW FW FW FW FW B2 B2 SC PoP 12hr 70 10 60 5 60 QPF 12hr 0.07-1.25 0.00-0.52 0.00-0.81 0.02 0.10-1.29 Snow 12hr MM MM MM Rain shwrs IS IS NM NM IS SC IS NM NM IS IS IS IS NM NM IS Tstms IS IS IS IS IS IS Heat index 91101102 93 84 92101103 95 86 80 94105106 96 86 Max heat 99 107 107 92 99 107 107 92 101 111 111 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 91 75 91 75 90 75 90 Temp 77 85 91 80 76 84 91 80 76 84 90 79 76 84 90 79 Dewpt 75 76 77 77 74 75 77 76 74 75 77 76 74 75 77 76 PWind dir E E E E E SE E E Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC B1 B1 SC FW SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 20 70 10 60 30 50 30 50 Rain shwrs IS IS IS NM IS IS NM NM IS IS SC SC SC SC SC SC Tstms IS IS IS IS IS $$ PRZ011-152000- Southwest- Including the cities of Cabo Rojo, Guanica, and Lajas 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 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 85 92 94 73 76 82 85 93 94 74 77 82 85 92 94 Temp 76 85 91 92 85 81 79 77 77 86 91 93 86 82 80 78 77 86 91 92 86 82 Dewpt 72 72 73 75 76 76 75 73 72 72 74 75 76 76 75 75 74 74 77 76 76 76 RH 87 65 56 58 75 85 88 87 85 63 58 56 72 82 85 91 90 68 64 60 72 82 Wind dir NE E SE E E E NE E E E E SE E E E E E E SE SE E E Wind spd 4 3 10 16 9 8 8 5 6 6 9 13 6 9 10 11 8 6 16 16 13 12 Wind gust 26 31 19 23 31 24 25 20 31 31 28 26 Clouds FW FW CL B1 B1 FW SC CL CL CL FW SC SC FW FW SC SC SC SC B1 B1 SC PoP 12hr 40 10 10 10 50 QPF 12hr 0.02-1.23 0.01 0.01-0.29 0.02-0.07 0.17-0.27 Snow 12hr MM MM MM Rain shwrs SC SC IS IS IS IS IS IS IS IS IS IS SC SC IS Tstms IS Heat index 91100103 94 87 80 92101104 95 89 83 94104105 96 89 Max heat 94 107 107 92 95 107 107 92 98 111 111 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 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 93 76 92 76 92 76 92 Temp 78 86 93 81 77 86 92 81 77 85 92 81 77 85 92 81 Dewpt 75 74 76 75 74 74 76 75 74 75 75 75 74 74 76 76 PWind dir E E E E E SE E SE Wind char GN GN LT GN LT GN LT GN Avg clouds SC SC SC SC FW FW FW SC SC SC SC SC SC SC SC SC PoP 12hr 30 30 0 40 10 30 10 30 Rain shwrs IS IS SC IS SC SC IS IS SC IS IS IS IS SC $$ PRZ012-152000- Culebra- Including the city of Culebra 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 88 94 81 85 89 94 81 85 88 94 Temp 81 85 87 88 85 83 82 81 81 85 88 89 85 83 82 81 81 85 87 88 85 83 Dewpt 76 77 77 77 77 76 77 76 76 77 77 78 78 77 78 78 78 78 78 78 78 77 RH 85 77 72 70 77 80 85 85 85 77 70 70 80 82 88 91 91 80 75 72 80 82 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 16 17 17 16 14 16 17 17 17 17 17 16 17 17 18 18 18 19 20 20 18 18 Clouds SC B1 B1 B1 B1 SC SC B1 SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 50 30 60 60 60 QPF 12hr 0.26 0.10-0.19 0.20-0.33 0.51 0.41 Snow 12hr MM MM MM Rain shwrs IS SC SC SC SC IS SC SC IS SC SC SC SC NM NM NM NM NM NM NM NM NM Tstms IS IS IS IS IS IS IS IS IS IS IS Heat index 87 95 99 99 95 92 90 88 88 96100101 97 93 91 89 88 97100101 97 93 Max heat 99 106 105 93 100 107 107 95 101 109 107 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 88 81 88 81 88 81 88 Temp 82 85 88 83 81 85 88 83 81 85 88 83 81 85 88 83 Dewpt 77 77 77 76 76 77 76 75 76 76 76 75 76 77 77 76 PWind dir E E E E E SE SE SE Wind char BZ GN GN GN GN GN GN BZ Avg clouds B2 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 B1 PoP 12hr 60 30 40 40 40 50 50 40 Rain shwrs NM NM SC SC SC SC SC SC SC SC SC SC SC SC SC SC Tstms IS IS $$ PRZ013-152000- Vieques- Including the city of Vieques 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 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 85 89 92 80 85 89 92 80 85 89 92 Temp 80 85 88 89 85 83 82 81 80 85 88 89 85 83 81 81 80 85 88 89 85 83 Dewpt 75 76 75 74 75 74 75 75 75 76 76 76 76 76 77 76 76 77 76 76 76 76 RH 85 75 66 61 72 74 79 82 85 75 68 66 75 80 88 85 88 77 68 66 75 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 17 17 17 16 16 17 17 17 17 17 17 14 17 17 18 17 17 19 18 18 17 17 Clouds SC B1 B1 B1 B1 B1 SC B1 SC B1 B1 B1 B1 OV OV B2 B2 B2 B2 B2 B2 B2 PoP 12hr 40 40 70 70 60 QPF 12hr 0.26 0.09-0.19 0.20-0.34 0.51-0.57 0.41 Snow 12hr MM MM MM Rain shwrs IS SC SC SC SC SC IS SC IS SC SC SC SC NM NM NM NM NM NM NM NM NM Tstms IS IS IS IS IS IS IS IS IS IS IS IS Heat index 85 94 97 97 94 90 88 86 86 95 99 99 95 90 88 86 86 96 99100 95 91 Max heat 97 102 101 91 98 104 103 92 99 105 103 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 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 80 88 80 88 80 88 Temp 81 85 89 83 81 85 88 82 80 85 88 82 80 85 88 83 Dewpt 76 76 75 74 75 76 74 74 74 75 74 73 75 76 74 74 PWind dir E E E E E SE SE SE Wind char BZ GN GN GN GN GN GN GN Avg clouds B2 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 SC PoP 12hr 60 30 40 40 40 50 50 40 Rain shwrs NM NM IS SC SC SC SC SC SC SC SC SC SC SC SC SC Tstms IS IS $$ VIZ001-152000- St.Thomas...St. John...and Adjacent Islands- Including the cities of Anna`s Retreat, Charlotte Amalie, Charlotte Amalie East, Charlotte Amalie West, and Cruz Bay 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 87 93 75 80 82 85 87 93 75 80 82 85 87 93 Temp 80 84 86 87 84 82 81 81 80 84 86 87 84 82 81 80 80 84 86 87 84 83 Dewpt 75 76 75 75 75 75 76 75 75 76 76 76 76 77 77 77 77 77 76 76 76 77 RH 85 77 70 68 74 79 85 82 85 77 72 70 77 85 88 91 91 80 72 70 77 82 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 17 18 17 17 16 18 18 16 18 17 18 16 17 19 17 18 19 19 20 20 18 18 Clouds SC SC B1 SC SC SC SC CL B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 PoP 12hr 40 40 60 60 60 QPF 12hr 0.06-0.27 0.06-0.13 0.20 0.50 0.39 Snow 12hr MM MM MM Rain shwrs IS SC SC IS IS IS IS SC SC SC SC SC NM NM NM NM NM NM NM NM SC Tstms IS IS IS IS IS IS IS IS IS Heat index 85 92 95 96 92 89 88 86 86 93 97 97 93 90 88 87 86 94 97 98 94 91 Max heat 100 105 104 93 100 107 106 94 101 107 105 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 87 80 87 80 87 80 87 Temp 81 84 87 82 80 84 87 82 80 84 87 82 80 84 87 82 Dewpt 77 76 75 76 76 75 74 74 75 75 74 74 75 75 74 75 PWind dir E E E E E SE SE E Wind char BZ GN GN GN GN GN GN BZ Avg clouds B1 SC SC SC SC B1 B1 SC SC B1 B1 B1 B1 B1 B1 B1 PoP 12hr 40 30 40 40 40 40 30 40 Rain shwrs SC IS IS SC SC SC SC SC SC SC SC SC SC SC SC SC $$ VIZ002-152000- St Croix- Including the cities of Christiansted, Frederiksted, Frederiksted Southeast, and Grove Place 231 AM AST Tue Sep 15 2026 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 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 85 88 94 80 85 88 94 80 85 88 94 Temp 80 85 87 88 85 83 81 81 80 85 87 88 85 82 81 80 80 85 87 88 85 83 Dewpt 76 76 76 76 76 76 76 76 76 77 77 77 77 77 78 78 78 78 78 77 77 77 RH 88 75 70 68 75 80 85 85 88 77 72 70 77 85 91 94 94 80 75 70 77 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 17 17 17 14 16 16 14 16 16 18 16 17 18 16 14 16 17 19 19 17 16 Clouds SC SC SC SC SC B2 SC FW B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 SC PoP 12hr 50 50 60 60 60 QPF 12hr 0.04-0.14 0.13-0.19 0.20-0.32 0.50 0.39 Snow 12hr MM MM MM Rain shwrs IS IS SC IS IS SC IS SC SC SC SC SC NM NM NM NM NM NM NM NM SC Tstms IS IS IS IS IS IS IS IS IS Heat index 86 94 98 98 94 90 89 86 86 95100100 95 91 90 87 87 96100101 96 92 Max heat 100 107 107 93 101 107 107 95 102 110 109 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 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 80 88 80 88 80 88 Temp 81 85 88 83 80 85 88 82 80 85 88 82 80 85 88 82 Dewpt 77 77 76 76 76 76 75 76 76 76 75 76 76 76 76 76 PWind dir E E E E E SE E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 10 20 30 30 30 20 30 Rain shwrs SC IS IS IS IS IS IS IS SC SC SC SC IS IS IS SC $$