Area Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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703 FOCA52 TJSJ 151831 AFMSJU Area Forecast Matrices National Weather Service San Juan PR 231 PM AST Tue Sep 15 2026 PRZ001-160800- San Juan and Vicinity- Including the cities of Bayamon, Carolina, Catano, Guaynabo, San Juan, Toa Alta, Toa Baja, and Trujillo Alto 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 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 82 82 89 91 73 77 82 82 89 90 74 78 82 Temp 84 81 80 79 78 84 88 89 84 81 79 78 77 84 88 89 84 81 80 79 78 86 Dewpt 76 76 76 75 74 76 77 78 78 77 77 76 76 78 77 77 78 77 77 77 76 77 RH 77 85 88 88 88 77 70 70 82 88 94 94 97 82 70 68 82 88 91 94 94 75 Wind dir E E E SE SE E E E E E SE SE E SE SE SE E E SE SE E E Wind spd 10 9 8 6 6 8 12 13 12 9 8 8 6 9 13 14 12 10 8 6 6 8 Wind gust 25 Clouds B2 SC B1 SC SC B1 B1 B1 B2 SC SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 SC PoP 12hr 40 50 50 60 60 QPF 12hr 0.10-0.19 0.15-0.49 0.07-0.45 0.40-0.72 0.12-0.21 Snow 12hr MM MM MM Rain shwrs SC SC SC SC IS SC SC SC SC SC SC SC SC SC SC NM NM SC SC SC SC SC Tstms IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 93 87 83 81 94101103 95 87 82 80 94100102 95 88 84 81 96 Max heat 107 93 99 109 108 95 100 106 105 94 102 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 90 76 90 76 90 76 90 Temp 91 81 78 85 90 81 77 84 90 80 77 84 90 81 77 84 90 80 Dewpt 76 76 76 77 77 76 75 76 77 76 75 77 77 76 75 77 69 73 PWind dir E SE E SE E 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 SC FW FW SC B1 SC FW SC B1 PoP 12hr 30 5 50 20 60 20 50 5 50 Rain shwrs SC SC IS IS SC SC IS IS IS SC IS IS SC SC IS IS SC SC Tstms IS IS $$ PRZ002-160800- Northeast- Including the cities of Ceiba, Canovanas, Fajardo, Humacao, Loiza, Luquillo, Naguabo, and Rio Grande 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 78 82 74 87 91 67 77 82 74 86 90 68 78 82 Temp 83 81 79 78 78 83 86 87 83 80 79 78 77 83 85 86 83 81 79 79 78 84 Dewpt 74 74 74 74 74 75 75 76 76 75 76 75 75 76 75 75 76 75 76 75 75 76 RH 74 79 85 88 88 77 70 70 80 85 91 91 94 80 72 70 80 82 91 88 91 77 Wind dir E E E E E E E E E E SE E E E SE SE E E E E E E Wind spd 10 10 10 10 9 11 12 11 11 10 12 12 12 13 13 13 12 12 11 10 9 10 Wind gust 20 21 19 20 24 24 23 24 24 Clouds B2 B1 B2 B1 SC B1 B2 B2 B2 B2 B2 B2 B2 OV OV OV OV B2 B2 B2 B2 B2 PoP 12hr 50 60 80 80 60 QPF 12hr 0.13-0.19 0.33-0.53 0.36-0.64 0.46-0.82 0.22 Snow 12hr MM MM MM Rain shwrs SC SC SC SC IS SC SC NM NM NM NM NM NM D D D D NM NM NM NM NM Tstms IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 90 85 83 80 80 90 95 97 91 86 82 80 91 95 96 91 86 84 81 80 92 Max heat 102 93 98 106 105 93 98 105 102 94 98 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 77 88 77 88 77 88 77 88 Temp 88 81 78 83 88 80 77 83 88 80 77 83 88 80 78 83 88 80 Dewpt 75 75 74 75 74 74 74 75 74 74 74 75 75 74 74 75 71 73 PWind dir E E E E E E E E E Wind char GN LT GN LT GN LT GN GN GN Avg clouds B1 SC FW FW SC SC SC SC SC SC SC SC B1 B1 SC SC SC B1 PoP 12hr 60 20 40 40 40 40 40 30 40 Rain shwrs NM IS IS IS SC SC SC SC SC SC SC SC SC SC SC SC SC SC $$ PRZ003-160800- Southeast- Including the cities of Arroyo, Guayama, Maunabo, Patillas, Salinas, and Yabucoa 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 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 77 82 77 87 91 69 77 82 75 85 90 70 78 82 Temp 83 80 79 78 77 83 86 87 83 80 79 78 77 82 84 85 82 80 79 78 78 84 Dewpt 75 74 74 74 73 75 75 76 77 76 76 76 75 77 76 76 77 75 75 75 75 75 RH 77 82 85 88 87 77 70 70 82 88 91 94 94 85 77 75 85 85 88 91 91 74 Wind dir E NE NE E E E E E E E E E E E SE SE E E E E E E Wind spd 10 8 9 9 8 9 13 12 11 9 10 9 10 11 13 13 12 10 9 8 8 9 Wind gust 21 28 27 24 20 19 21 27 26 24 21 20 Clouds B1 SC B1 SC SC SC SC FW SC B1 B1 B1 B1 OV OV OV OV B2 B2 B2 B2 B1 PoP 12hr 30 50 80 80 60 QPF 12hr 0.02-0.19 0.05-0.44 0.15-0.62 0.42-0.82 0.21 Snow 12hr MM MM MM Rain shwrs SC IS SC SC IS IS SC IS IS SC SC SC SC D D NM NM NM NM NM NM SC Tstms IS IS IS IS IS IS IS IS IS IS IS IS Heat index 90 85 82 90 96 98 92 85 82 90 94 95 91 84 82 91 Max heat 105 91 99 109 108 93 99 105 103 92 101 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 76 87 76 87 76 87 Temp 88 80 78 83 88 80 77 82 87 79 77 82 87 80 77 83 87 80 Dewpt 73 75 74 75 74 74 74 74 74 74 74 74 74 74 74 74 69 73 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 FW CL FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 60 5 30 20 30 30 30 10 20 Rain shwrs SC IS SC SC SC IS SC SC IS SC SC SC IS IS IS IS $$ PRZ004-160800- Eastern Interior- Including the cities of Aguas Buenas, Caguas, Cayey, Cidra, Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 69 74 78 76 86 91 69 74 78 75 84 90 70 75 78 Temp 81 78 76 75 74 81 85 86 81 78 76 75 74 80 83 84 80 78 76 75 75 82 Dewpt 73 73 73 72 72 74 74 75 75 74 74 74 74 76 75 74 76 74 75 74 74 75 RH 77 85 90 90 93 79 70 70 82 88 94 97100 88 77 72 88 88 97 97 97 79 Wind dir E E E E E E E E E E E E E E SE SE E E E E E E Wind spd 6 4 4 4 4 5 10 10 9 5 6 6 6 9 12 12 11 8 6 5 4 6 Clouds B2 FW SC SC SC B1 B1 SC B1 B1 B1 B1 B1 B2 B2 OV OV B2 B2 B2 B2 B1 PoP 12hr 40 50 60 70 60 QPF 12hr 0.02-0.19 0.09-0.50 0.11-0.56 0.51-0.82 0.14-0.22 Snow 12hr MM MM MM Rain shwrs SC IS SC SC IS SC SC IS SC SC SC SC SC NM NM NM NM NM NM NM NM SC Tstms IS IS IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 85 86 93 94 86 85 91 92 85 89 Max heat 103 87 97 107 106 88 97 106 103 88 98 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 74 87 73 86 73 86 73 86 Temp 87 78 75 81 87 77 74 81 86 77 74 81 86 77 74 81 86 77 Dewpt 73 74 73 74 74 73 72 74 74 73 72 74 74 73 73 74 67 72 PWind dir E E E E SE SE E E E Wind char LT LT LT LT LT LT GN LT GN Avg clouds SC SC FW FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 0 50 10 50 30 40 10 40 Rain shwrs SC IS SC SC IS IS IS SC IS IS SC SC IS IS SC SC $$ PRZ005-160800- North Central- Including the cities of Arecibo, Barceloneta, Dorado, Florida, Manati, Vega Alta, and Vega Baja 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 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 82 84 89 91 73 76 82 84 89 90 73 76 82 Temp 83 80 78 77 76 83 88 89 83 80 78 77 76 83 88 89 83 80 78 77 76 85 Dewpt 77 76 75 75 74 76 78 78 78 77 76 76 75 78 78 77 78 77 76 76 76 77 RH 82 88 91 94 94 80 72 70 85 91 94 97 97 85 72 68 85 91 94 97100 77 Wind dir E E E SE SE E E NE E E E SE E E E E E E SE SE E E Wind spd 12 10 9 6 6 6 12 17 14 11 8 6 6 6 12 14 12 8 6 6 6 8 Wind gust 24 20 28 28 23 26 Clouds B1 SC SC SC FW SC SC SC B1 FW FW FW FW SC SC OV OV SC SC SC SC FW PoP 12hr 20 30 5 80 20 QPF 12hr 0.01-0.15 0.07-1.21 0.01-0.14 0.42-1.76 0.06-0.14 Snow 12hr MM MM MM Rain shwrs SC IS IS IS IS IS IS IS IS IS IS IS IS D D SC SC SC SC IS Tstms IS IS IS IS IS Heat index 92 84 92101102 93 85 94102102 94 85 95 Max heat 106 91 99 109 108 94 99 106 105 94 102 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 76 90 75 89 74 90 75 89 Temp 91 80 77 84 90 79 76 83 89 79 75 83 90 79 76 83 89 79 Dewpt 77 76 75 77 78 76 74 76 78 76 74 77 78 76 74 77 70 72 PWind dir E SE E SE E SE E SE E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC CL CL SC B1 CL FW SC B1 FW FW SC B1 CL CL FW B1 PoP 12hr 40 0 60 5 70 5 60 0 40 Rain shwrs IS SC NM NM IS NM NM IS IS SC SC SC Tstms IS IS IS IS IS IS IS $$ PRZ006-160800- Central Interior- Including the cities of Aibonito, Barranquitas, Ciales, Coamo, Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 73 77 74 84 91 64 73 77 74 83 90 64 73 77 Temp 79 76 74 73 73 79 83 84 79 76 75 74 73 79 82 83 79 76 75 74 73 80 Dewpt 72 71 72 72 71 72 73 73 74 73 73 73 72 74 74 73 74 73 73 73 73 73 RH 79 85 93 97 93 79 72 70 85 90 94 97 97 85 77 72 85 90 94 97100 79 Wind dir E E E E E E E E E E E E E E SE SE SE E E E E E Wind spd 8 5 4 3 3 4 9 11 9 5 4 4 4 6 10 11 10 5 4 4 4 5 Wind gust 27 27 20 25 25 23 Clouds B2 FW FW FW FW SC B1 SC B1 FW FW SC SC SC SC OV OV B1 B1 B1 B1 SC PoP 12hr 20 50 20 70 50 QPF 12hr 0.00-0.11 0.06-0.93 0.01-0.17 0.36-1.63 0.07-0.18 Snow 12hr MM MM MM Rain shwrs NM IS IS SC IS SC IS IS IS IS IS IS NM NM SC SC SC SC IS Tstms IS IS IS IS IS Heat index 81 82 89 90 83 82 87 88 82 84 Max heat 105 86 96 109 108 87 98 106 105 86 99 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 73 84 72 84 71 84 72 84 Temp 85 76 73 80 84 76 73 79 84 75 72 79 84 75 73 79 84 75 Dewpt 71 72 72 73 73 72 71 73 73 72 71 73 73 72 71 73 65 69 PWind dir E E E E SE SE SE E E Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC CL CL SC B1 CL FW SC B1 CL FW SC SC FW FW FW SC PoP 12hr 30 0 60 5 70 5 50 0 40 Rain shwrs IS SC NM NM IS IS NM IS IS SC SC SC Tstms IS IS IS IS IS $$ PRZ007-160800- Ponce and Vicinity- Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas, Ponce, and Santa Isabel 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 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 82 74 87 91 63 76 82 74 86 90 64 76 82 Temp 82 79 78 77 76 83 86 87 83 79 78 77 76 82 85 86 82 79 78 77 76 83 Dewpt 74 73 73 72 70 72 74 74 75 74 74 73 73 74 75 75 76 74 74 73 73 73 RH 77 82 85 85 82 70 68 65 77 85 88 87 90 77 72 70 82 85 88 87 90 72 Wind dir E E NE E E E E E E E E E E E SE SE SE E E E E E Wind spd 9 6 5 5 4 4 11 13 10 8 5 6 8 10 12 12 11 9 8 6 5 8 Wind gust 21 27 29 24 19 24 27 26 26 21 21 Clouds B1 CL FW FW FW FW SC SC B1 FW FW SC SC SC SC B2 B2 B1 B1 B1 B1 SC PoP 12hr 5 30 10 50 30 QPF 12hr 0.01 0.05-1.05 0.01-0.17 0.19-0.86 0.06-0.19 Snow 12hr MM MM MM Rain shwrs SC IS IS IS IS SC IS IS IS IS IS IS SC SC SC SC SC SC IS Tstms IS IS IS IS IS Heat index 88 83 88 95 96 90 84 88 94 94 89 83 89 Max heat 105 91 95 108 107 94 96 106 103 92 96 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 75 87 75 87 75 87 Temp 88 79 77 83 88 79 76 82 87 78 76 82 87 79 76 82 87 79 Dewpt 73 74 72 72 74 74 72 73 73 73 72 72 74 73 72 72 69 71 PWind dir SE E E E E E E E E Wind char GN LT LT LT LT LT GN LT GN Avg clouds SC SC CL CL FW SC CL FW SC SC CL FW SC SC CL CL FW SC PoP 12hr 30 0 60 5 50 10 40 0 30 Rain shwrs IS SC SC SC IS SC IS SC SC SC SC Tstms IS IS IS $$ PRZ008-160800- Northwest- Including the cities of Aguadilla, Camuy, Hatillo, Isabela, and Quebradillas 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 71 74 82 85 87 91 71 75 82 87 71 75 82 Temp 81 78 76 75 75 82 86 87 82 78 77 76 75 82 86 87 82 79 77 76 75 83 Dewpt 76 75 75 73 72 74 76 77 77 76 76 74 73 76 77 77 78 76 76 74 74 75 RH 85 91 97 94 90 77 72 72 85 94 97 94 94 82 75 72 88 91 97 94 97 77 Wind dir E E E E E E E NE E E E E E E E E E E E E E E Wind spd 13 12 11 9 8 8 12 16 14 14 9 8 8 6 9 13 10 6 8 6 8 8 Wind gust 24 23 21 20 26 26 26 24 20 Clouds B2 SC SC FW CL FW FW B2 B2 FW FW FW FW FW FW OV OV SC SC SC SC FW PoP 12hr 20 60 5 80 20 QPF 12hr 0.00-0.06 0.54-1.31 0.01 1.67-1.76 0.06 Snow 12hr MM MM MM Rain shwrs NM IS IS IS IS NM NM D D IS IS IS IS IS Tstms IS IS IS IS IS Heat index 88 88 96 98 89 80 89 98100 91 81 90 Max heat 106 91 94 108 105 94 96 106 105 93 96 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 74 88 74 87 73 88 73 87 Temp 89 79 75 82 88 78 75 82 87 78 74 82 88 78 74 82 87 78 Dewpt 77 76 74 75 76 75 73 75 76 75 73 75 76 76 73 75 72 72 PWind dir E E E SE E SE E SE E Wind char GN LT GN LT LT LT LT LT GN Avg clouds SC B1 CL CL SC B1 SC FW SC B1 SC SC SC B1 CL CL SC B1 PoP 12hr 70 0 60 10 60 10 60 0 50 Rain shwrs NM NM NM NM IS IS NM NM IS IS NM NM SC SC Tstms IS IS IS IS IS IS IS IS $$ PRZ009-160800- Western Interior- Including the cities of Adjuntas, Lares, Las Marias, Maricao, Sabana Grande, San Sebastian, and Utuado 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 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 72 77 74 85 91 66 73 77 74 84 90 67 73 77 Temp 79 76 74 73 72 79 84 85 79 76 75 74 73 79 82 84 79 76 75 73 73 80 Dewpt 73 72 72 71 69 71 73 74 74 73 73 72 72 73 75 75 74 73 73 72 72 73 RH 82 87 93 93 90 77 70 70 85 90 94 93 97 82 79 74 85 90 94 97 97 79 Wind dir E E E E E E E E E E E E E E SE SE SE E E E E E Wind spd 4 4 5 4 3 3 6 8 5 5 4 4 4 5 8 8 6 5 5 4 4 4 Wind gust 21 28 16 21 26 26 25 20 20 Clouds OV FW FW CL CL FW SC OV OV FW FW FW FW FW FW OV OV SC SC SC SC FW PoP 12hr 5 80 5 80 20 QPF 12hr 0.02 0.30-1.37 0.01 0.24-1.75 0.06 Snow 12hr MM MM MM Rain shwrs NM IS SC NM D IS IS IS IS D D IS IS IS IS IS Tstms IS IS IS IS IS Heat index 82 82 90 92 83 82 89 91 82 84 Max heat 106 87 94 108 106 88 96 106 105 87 96 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 72 85 72 85 71 85 72 85 Temp 86 76 73 80 85 76 73 79 85 75 72 79 85 76 72 79 85 76 Dewpt 73 73 71 72 74 73 71 73 74 72 71 73 74 73 71 73 69 69 PWind dir E E E E E SE E E E Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 CL CL SC B1 FW FW SC B1 FW FW SC B1 CL CL SC B1 PoP 12hr 70 0 70 5 80 5 60 0 50 Rain shwrs NM NM NM NM IS IS NM NM IS IS NM NM SC SC Tstms IS IS IS IS IS IS IS IS $$ PRZ010-160800- Mayaguez and Vicinity- Including the cities of Aguada, Anasco, Hormigueros, Mayaguez, Moca, Rincon, and San German 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 75 82 76 89 91 69 76 82 75 88 90 69 76 82 Temp 83 79 77 76 76 83 88 89 83 80 78 77 76 83 87 88 83 80 78 77 76 84 Dewpt 77 76 75 73 72 74 76 77 77 76 76 75 73 76 77 78 78 77 76 75 74 75 RH 82 91 94 90 87 74 68 68 82 88 94 94 90 80 72 72 85 91 94 94 94 74 Wind dir E E E E E E E E E E E E E E SE SE E E E E E E Wind spd 6 8 8 8 5 5 8 8 8 9 6 5 6 8 9 9 6 9 9 6 6 6 Wind gust 19 21 18 19 18 18 21 19 23 21 21 25 23 25 23 29 26 21 18 17 Clouds B2 SC FW CL CL CL FW B2 B2 FW FW FW FW FW FW B2 B2 SC SC SC SC SC PoP 12hr 10 70 5 70 20 QPF 12hr 0.00-0.52 0.00-1.30 0.01 0.09-1.75 0.07 Snow 12hr MM MM MM Rain shwrs NM IS SC IS NM D IS IS IS IS NM NM IS IS IS IS IS Tstms IS IS IS IS IS Heat index 92 83 90 99102 93 85 92100102 93 84 93 Max heat 107 90 99 109 108 93 99 106 105 93 99 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 75 91 75 90 75 90 75 90 Temp 90 80 76 84 91 80 76 84 90 79 76 84 90 79 76 84 90 79 Dewpt 77 76 74 75 77 76 74 75 77 76 74 75 77 76 74 75 72 72 PWind dir E E E E E E E E E Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC FW FW SC B1 SC SC SC B1 SC SC SC SC CL CL FW B1 PoP 12hr 70 0 70 30 60 20 50 0 50 Rain shwrs IS NM NM NM IS IS IS NM IS IS SC SC SC SC Tstms IS IS IS IS IS IS IS $$ PRZ011-160800- Southwest- Including the cities of Cabo Rojo, Guanica, and Lajas 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 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 82 85 90 91 74 77 82 89 74 77 82 Temp 84 80 78 77 76 84 89 90 85 81 79 77 77 84 88 89 84 81 79 78 78 85 Dewpt 77 77 76 74 72 74 76 77 78 77 76 75 74 76 78 78 78 76 76 75 74 75 RH 80 91 94 90 87 72 66 66 80 88 91 94 90 77 72 70 82 85 91 91 88 72 Wind dir E E E E E E E SE E E E E E E SE SE SE E E E E E Wind spd 10 9 9 8 5 4 12 13 10 9 10 10 11 13 17 17 16 14 14 10 6 9 Wind gust 21 20 25 33 23 21 23 23 25 27 33 34 34 29 33 24 19 Clouds B1 FW SC CL CL CL FW SC SC FW FW SC SC SC SC B1 B1 SC SC SC SC SC PoP 12hr 10 20 10 40 30 QPF 12hr 0.01 0.08-0.72 0.01-0.07 0.14-0.34 0.09 Snow 12hr MM MM MM Rain shwrs SC IS IS IS IS IS IS IS IS IS IS SC SC IS IS IS IS SC Tstms IS IS IS IS Heat index 95 86 92101104 96 88 80 93102104 95 87 80 94 Max heat 107 92 94 109 108 94 96 106 105 93 97 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 76 92 76 92 76 92 76 92 Temp 91 81 77 86 92 81 77 85 92 81 77 85 92 81 77 85 92 81 Dewpt 76 77 74 74 76 75 74 75 75 75 74 74 76 76 74 74 72 73 PWind dir SE E E E E E E E E Wind char GN LT GN LT GN LT GN GN GN Avg clouds SC SC CL CL FW SC FW FW FW SC FW FW SC SC CL CL FW SC PoP 12hr 30 0 50 5 30 10 30 0 30 Rain shwrs SC SC SC SC IS IS SC SC IS IS IS SC SC IS Tstms IS $$ PRZ012-160800- Culebra- Including the city of Culebra 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 85 87 91 81 87 81 Temp 85 83 82 82 81 85 87 87 85 83 82 81 81 85 86 87 85 83 82 81 81 85 Dewpt 76 76 76 75 76 77 77 78 78 77 78 77 77 78 77 77 78 77 78 77 77 78 RH 75 80 82 79 85 77 72 75 80 82 88 88 88 80 75 72 80 82 88 88 88 80 Wind dir E E E E E E E E E E SE E E E SE E E E E E E E Wind spd 16 17 18 18 17 18 17 16 18 19 20 21 19 19 18 16 18 19 18 16 16 16 Clouds B1 SC SC B1 SC B1 B1 B2 B2 B2 B2 B2 B2 OV OV OV OV B2 B2 B2 B2 SC PoP 12hr 30 60 70 80 60 QPF 12hr 0.10-0.19 0.36-0.50 0.55 0.65 0.21 Snow 12hr MM MM MM Rain shwrs SC IS SC SC IS SC SC SC SC NM NM NM NM NM NM D D NM NM NM NM SC Tstms IS IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 94 91 90 87 87 95 98100 96 92 91 88 87 96 98 99 96 92 91 89 89 96 Max heat 107 95 99 105 105 96 101 103 105 95 100 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 81 88 81 88 81 88 81 88 Temp 88 83 81 85 88 83 81 85 88 83 81 85 88 83 81 85 88 83 Dewpt 77 76 76 77 76 75 76 76 76 75 76 77 77 76 76 77 74 75 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN GN BZ GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC B1 SC SC SC SC SC PoP 12hr 50 40 40 40 50 50 30 20 30 Rain shwrs SC IS IS SC SC SC SC SC SC SC SC SC SC SC IS IS IS IS $$ PRZ013-160800- Vieques- Including the city of Vieques 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 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 84 88 91 80 88 81 Temp 85 83 82 81 81 85 87 88 85 82 81 81 80 85 87 88 85 83 82 81 81 85 Dewpt 75 74 75 74 75 76 75 75 76 75 76 76 76 77 75 75 76 76 76 76 76 76 RH 72 74 79 79 82 75 68 66 75 79 85 85 88 77 68 66 75 80 82 85 85 75 Wind dir E E E E E E E E E E E E E E SE E E E E E E E Wind spd 14 17 18 18 17 17 17 16 18 18 19 20 18 19 17 14 18 19 18 16 17 14 Clouds B1 B1 SC B1 SC B1 B1 B1 B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B1 PoP 12hr 40 70 70 80 60 QPF 12hr 0.09-0.19 0.34-0.48 0.55-0.64 0.76-0.82 0.21 Snow 12hr MM MM MM Rain shwrs SC SC IS SC IS SC SC SC SC NM NM NM NM NM NM D D NM NM NM NM SC Tstms IS IS IS IS IS IS IS IS IS IS IS IS IS IS Heat index 93 89 88 86 85 94 97 98 94 90 88 86 85 95 97 97 94 91 89 87 86 95 Max heat 101 92 99 103 102 92 98 101 101 93 98 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 80 88 80 88 80 88 80 88 Temp 89 83 81 85 88 82 80 85 88 82 80 85 88 83 80 85 88 83 Dewpt 75 75 75 76 74 74 74 75 74 73 75 76 74 74 75 76 74 75 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN GN BZ BZ Avg clouds SC FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 40 40 40 50 50 30 20 20 Rain shwrs IS IS IS SC SC SC SC SC SC SC SC SC SC SC IS IS IS IS $$ VIZ001-160800- St.Thomas...St. John...and Adjacent Islands- Including the cities of Anna`s Retreat, Charlotte Amalie, Charlotte Amalie East, Charlotte Amalie West, and Cruz Bay 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 76 81 82 84 86 91 74 80 82 84 86 90 75 81 83 Temp 84 82 81 81 81 84 86 86 84 82 81 81 80 84 86 86 84 82 81 81 81 84 Dewpt 75 75 75 75 75 76 76 76 76 76 77 77 77 77 75 75 76 77 77 77 76 76 RH 74 79 82 82 82 77 72 72 77 82 88 88 91 80 70 70 77 85 88 88 85 77 Wind dir E E E E E E E E E E E SE E E SE E E E E E E E Wind spd 16 17 19 18 18 19 18 17 18 19 20 21 20 20 18 17 18 19 18 16 17 16 Clouds SC SC SC CL B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 FW PoP 12hr 40 60 60 70 40 QPF 12hr 0.06-0.13 0.34 0.50 0.48-0.60 0.06-0.15 Snow 12hr MM MM MM Rain shwrs IS IS IS SC SC SC SC SC NM NM NM NM NM NM NM NM SC SC SC SC IS Tstms IS IS IS IS IS IS IS IS IS IS Heat index 91 89 87 86 86 93 96 96 93 90 88 86 86 93 95 96 93 90 89 87 87 94 Max heat 102 93 99 105 104 95 99 102 102 94 99 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 80 87 80 87 80 87 80 87 Temp 87 82 80 84 87 82 80 84 87 82 80 84 87 82 80 84 87 82 Dewpt 75 76 76 75 74 74 75 75 74 74 75 75 74 75 76 76 74 74 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN BZ BZ BZ Avg clouds FW FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 40 40 40 40 30 30 20 20 Rain shwrs IS IS IS SC SC SC SC SC SC SC SC SC SC SC IS IS IS IS $$ VIZ002-160800- St Croix- Including the cities of Christiansted, Frederiksted, Frederiksted Southeast, and Grove Place 231 PM AST Tue Sep 15 2026 Date 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 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 84 87 91 80 87 81 Temp 84 83 82 81 81 85 87 87 84 82 81 80 80 84 86 87 85 83 82 81 81 85 Dewpt 76 75 76 75 76 77 77 77 77 77 78 77 77 78 77 76 77 77 78 77 77 77 RH 77 77 82 82 85 77 72 72 80 85 91 91 91 82 75 70 77 82 88 88 88 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 16 16 17 16 16 17 18 13 17 17 18 19 18 19 17 17 16 16 14 14 13 14 Clouds SC B2 SC FW B1 B1 B1 B2 B2 B2 B2 B2 B2 OV OV OV OV SC SC SC SC FW PoP 12hr 50 60 70 80 30 QPF 12hr 0.13-0.19 0.37-0.51 0.54 0.58-0.74 0.07 Snow 12hr MM MM MM Rain shwrs IS SC IS SC SC SC SC NM NM NM NM NM NM NM D D SC SC SC SC IS Tstms IS IS IS IS IS IS IS IS IS IS Heat index 93 90 88 86 86 95 99 99 94 91 89 87 85 95 98 99 95 92 90 88 87 95 Max heat 104 93 100 108 107 95 100 103 103 95 101 Date 09/18 Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 80 85 88 82 80 85 88 82 80 85 88 82 80 85 88 82 Dewpt 76 76 76 76 75 76 76 76 75 76 76 76 76 76 76 76 73 74 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN GN GN BZ Avg clouds FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 20 30 30 30 30 30 20 20 Rain shwrs IS IS IS IS IS IS IS SC SC SC IS SC SC IS IS IS IS IS $$