Area Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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901 FOCA52 TJSJ 200631 AFMSJU Area Forecast Matrices National Weather Service San Juan PR 231 AM AST Sun Sep 20 2026 PRZ001-202000- San Juan and Vicinity- Including the cities of Bayamon, Carolina, Catano, Guaynabo, San Juan, Toa Alta, Toa Baja, and Trujillo Alto 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 83 83 90 92 73 77 83 83 90 92 Temp 77 85 89 90 84 81 79 78 77 85 89 90 85 81 79 78 77 84 89 90 84 81 Dewpt 74 76 76 76 76 76 76 75 74 76 77 77 77 76 76 75 75 76 77 77 77 76 RH 90 75 66 64 77 85 91 91 90 75 68 66 77 85 91 91 94 77 68 66 80 85 Wind dir SE SE E E SE SE SE SE SE SE E E SE SE SE SE SE SE E E E E Wind spd 3 5 10 11 10 6 4 4 4 5 11 12 10 6 4 4 4 6 11 11 10 8 Wind gust 23 Clouds B1 B1 B1 B1 B2 B1 B1 B1 SC SC SC B2 B2 B1 B1 SC SC SC SC B1 B1 FW PoP 12hr 50 40 50 40 40 QPF 12hr 0.36-0.66 0.12-0.23 0.31-0.72 0.06-0.15 0.11-0.18 Snow 12hr MM MM MM Rain shwrs SC SC SC SC NM SC SC SC SC IS SC NM NM SC SC IS IS IS IS SC SC IS Tstms IS IS IS IS Heat index 94100102 94 86 82 94101103 94 87 82 94102103 94 86 Max heat 100 111 110 94 99 111 110 94 100 111 110 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 90 77 90 77 91 77 91 Temp 78 84 90 81 78 85 90 81 78 85 91 81 78 85 91 81 Dewpt 75 76 77 76 76 77 77 76 76 77 77 76 75 77 76 76 PWind dir SE E SE E SE SE SE E Wind char LT GN LT GN LT GN LT GN Avg clouds FW SC B1 SC SC SC B1 B1 SC B1 B1 B1 SC SC SC SC PoP 12hr 40 40 30 50 30 40 20 30 Rain shwrs IS SC SC IS IS SC SC SC SC SC SC SC IS IS SC SC Tstms IS IS IS IS IS IS $$ PRZ002-202000- Northeast- Including the cities of Ceiba, Canovanas, Fajardo, Humacao, Loiza, Luquillo, Naguabo, and Rio Grande 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 88 92 67 77 83 75 88 92 67 77 83 75 88 92 Temp 78 83 87 88 83 80 79 78 77 83 87 88 83 80 79 78 77 83 87 88 83 80 Dewpt 74 74 74 74 74 74 74 73 74 74 74 74 74 74 74 74 74 74 75 74 74 74 RH 88 74 65 63 74 82 85 85 90 74 65 63 74 82 85 88 90 74 68 63 74 82 Wind dir E E SE SE SE SE SE SE SE SE SE SE SE SE SE SE E E E E E E Wind spd 4 6 9 9 8 6 5 5 4 6 11 10 9 6 5 5 6 9 10 10 9 8 Wind gust 20 Clouds B2 B2 B2 B1 B1 B1 B1 B2 B1 B1 SC B1 B1 B2 B2 SC SC SC SC B1 B1 SC PoP 12hr 50 50 50 50 30 QPF 12hr 0.22-0.43 0.11-0.30 0.20-0.42 0.15 0.10-0.19 Snow 12hr MM MM MM Rain shwrs NM NM NM SC SC SC SC SC SC SC IS SC SC SC SC IS IS SC SC SC SC SC Tstms IS IS Heat index 80 90 95 96 90 85 82 80 90 95 96 90 85 82 80 90 96 96 90 85 Max heat 97 103 102 92 96 105 104 93 96 105 103 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 88 77 88 78 88 78 88 Temp 78 83 88 80 78 83 88 81 78 84 88 81 79 84 88 81 Dewpt 74 75 75 75 74 75 75 75 74 75 74 74 74 75 74 74 PWind dir E E E E E E E E Wind char GN GN LT GN GN GN LT GN Avg clouds SC B1 B1 SC SC B1 B1 B1 B1 B1 B2 B1 SC SC SC SC PoP 12hr 50 50 40 50 50 50 30 30 Rain shwrs SC SC SC SC SC SC SC SC SC SC SC SC IS SC SC IS Tstms IS IS IS IS IS IS IS $$ PRZ003-202000- Southeast- Including the cities of Arroyo, Guayama, Maunabo, Patillas, Salinas, and Yabucoa 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 87 92 69 76 83 77 87 92 68 76 83 77 87 92 Temp 77 83 86 87 83 80 78 77 76 83 86 87 83 80 78 77 76 83 86 87 83 80 Dewpt 73 75 75 75 75 74 74 74 73 75 76 75 76 75 75 74 74 75 76 75 76 74 RH 87 77 70 68 77 82 88 90 90 77 72 68 80 85 91 90 94 77 72 68 80 82 Wind dir E E SE SE SE E E E E E SE SE SE E E E E E E E E E Wind spd 4 5 9 9 8 5 5 5 4 6 11 10 8 6 5 5 5 8 10 10 9 8 Wind gust 20 25 20 20 21 19 Clouds B1 B1 B2 B1 SC SC SC SC SC B1 SC B1 B1 B1 B1 SC SC SC SC SC SC SC PoP 12hr 50 30 40 40 30 QPF 12hr 0.15-0.27 0.05-0.13 0.15-0.44 0.06-0.16 0.02-0.17 Snow 12hr MM MM MM Rain shwrs SC SC NM SC IS SC IS IS SC SC IS SC SC SC SC SC SC IS IS IS IS SC Heat index 90 96 97 90 84 81 90 96 97 90 84 81 90 96 97 91 84 Max heat 98 108 107 92 98 109 107 92 98 109 108 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 77 87 77 88 77 88 Temp 77 83 88 80 77 83 87 80 78 83 88 81 78 83 88 80 Dewpt 74 75 76 75 75 76 76 75 75 76 75 75 74 75 75 74 PWind dir E E E E E E E E Wind char LT GN LT GN LT GN LT GN Avg clouds SC B1 SC SC SC SC B1 B1 B1 B1 B1 B1 SC SC SC SC PoP 12hr 40 40 40 40 50 50 20 30 Rain shwrs SC SC SC IS SC SC SC SC SC SC SC SC IS IS SC IS Tstms IS IS IS IS IS IS IS $$ PRZ004-202000- Eastern Interior- Including the cities of Aguas Buenas, Caguas, Cayey, Cidra, Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 86 91 68 74 77 77 86 92 68 74 77 77 86 92 Temp 74 81 85 86 81 77 76 74 74 81 85 86 81 78 76 75 74 81 85 86 81 78 Dewpt 72 74 73 73 73 73 73 72 72 74 74 74 74 73 73 73 72 74 74 74 74 73 RH 93 79 67 65 77 87 90 93 93 79 70 68 79 85 90 94 93 79 70 68 79 85 Wind dir SE E SE SE SE SE SE SE SE SE SE SE SE SE SE E E E E E E E Wind spd 2 4 8 9 8 4 3 4 3 5 10 10 8 4 3 3 3 6 9 9 6 5 Clouds B1 B1 B1 B2 B1 B1 B1 SC SC B1 SC B2 B2 B1 B1 SC SC SC SC SC SC SC PoP 12hr 50 30 40 40 30 QPF 12hr 0.18-0.50 0.07-0.25 0.29-0.83 0.07-0.16 0.02-0.19 Snow 12hr MM MM MM Rain shwrs SC SC SC SC SC SC SC IS SC SC IS NM NM SC SC IS IS IS IS SC SC IS Tstms IS IS IS IS Heat index 86 92 93 85 86 93 94 86 86 93 94 86 Max heat 96 105 103 86 98 107 106 87 98 107 105 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 87 74 87 74 87 74 87 Temp 75 81 87 78 75 81 87 78 75 82 87 78 75 82 87 78 Dewpt 73 74 74 74 73 75 74 74 73 75 73 73 73 74 73 73 PWind dir E E E SE E SE E SE Wind char LT GN LT GN LT GN LT GN Avg clouds SC SC B1 SC SC SC B1 B1 B1 B1 B1 B1 SC SC SC SC PoP 12hr 40 40 30 40 40 50 20 30 Rain shwrs IS SC SC IS IS SC SC SC SC SC SC SC IS IS SC SC Tstms IS IS IS IS IS IS $$ PRZ005-202000- North Central- Including the cities of Arecibo, Barceloneta, Dorado, Florida, Manati, Vega Alta, and Vega Baja 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 72 75 83 85 90 92 72 75 83 84 89 92 Temp 75 83 88 89 83 79 77 76 75 83 88 90 83 79 77 76 75 83 88 89 83 79 Dewpt 73 77 77 77 77 76 75 74 73 77 77 78 77 76 76 75 74 77 78 78 77 76 RH 94 82 70 68 82 91 94 94 94 82 70 68 82 91 97 97 97 82 72 70 82 91 Wind dir SE SE E NE NE S SE SE SE SE E E E SE SE SE SE SE E E E E Wind spd 4 5 8 11 9 5 5 4 4 5 9 12 4 3 4 4 4 5 9 10 9 8 Wind gust 23 19 23 Clouds SC SC SC B1 B2 B2 B1 SC SC FW FW B2 B2 B1 B1 FW FW FW FW SC SC CL PoP 12hr 80 60 80 60 20 QPF 12hr 0.40-1.21 0.10 0.35-1.18 0.03-0.10 0.03-0.58 Snow 12hr MM MM MM Rain shwrs IS IS IS SC NM SC SC IS IS IS IS NM NM SC SC IS IS IS IS SC SC Tstms IS IS IS IS IS Heat index 92100102 92 83 93101103 93 83 93101103 92 83 Max heat 100 111 109 94 99 111 109 94 99 111 109 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 75 90 75 90 75 90 Temp 76 83 89 79 76 84 90 80 76 84 90 80 76 84 90 80 Dewpt 74 77 78 76 75 77 78 76 75 77 77 76 74 77 77 76 PWind dir SE E SE E SE E SE E Wind char LT GN LT GN LT LT LT GN Avg clouds CL FW SC SC SC SC SC B1 SC SC SC B1 SC SC SC SC PoP 12hr 20 20 10 50 10 50 10 40 Rain shwrs IS IS IS IS IS IS SC IS IS IS IS IS IS SC SC Tstms IS IS IS IS $$ PRZ006-202000- Central Interior- Including the cities of Aibonito, Barranquitas, Ciales, Coamo, Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 84 92 63 72 76 75 84 91 63 72 76 75 84 91 Temp 72 79 83 84 79 75 74 73 72 79 83 84 79 75 74 73 72 79 83 84 79 75 Dewpt 71 73 73 73 73 72 72 71 71 73 74 73 73 72 72 72 71 73 74 73 73 72 RH 97 82 72 70 82 90 93 93 97 82 74 70 82 90 93 97 97 82 74 70 82 90 Wind dir E E SE SE S SE SE SE SE SE SE SE SE SE SE E E E E E E E Wind spd 2 4 6 6 5 3 3 3 3 4 8 8 5 4 3 3 3 5 8 8 5 4 Wind gust 19 23 19 19 20 Clouds FW SC B1 B1 B2 B1 B1 FW SC SC FW OV OV SC SC SC SC FW FW SC SC FW PoP 12hr 60 20 60 30 20 QPF 12hr 0.18-1.11 0.05-0.12 0.26-1.10 0.02-0.09 0.02-0.58 Snow 12hr MM MM MM Rain shwrs IS IS SC SC NM SC SC IS IS IS IS D D IS IS IS IS IS IS IS IS IS Tstms IS IS IS IS IS Heat index 82 88 89 82 82 89 90 82 82 89 90 82 Max heat 98 108 108 85 96 109 108 84 96 108 106 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 84 72 84 72 84 72 84 Temp 73 79 84 76 73 79 84 76 73 79 84 76 73 79 84 76 Dewpt 71 73 73 72 72 74 73 72 72 73 73 72 72 73 72 72 PWind dir E E E SE E SE E SE Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC B1 SC SC SC SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 30 30 20 40 20 40 10 40 Rain shwrs IS SC SC SC IS IS IS SC IS IS SC SC IS IS SC SC Tstms IS IS IS IS IS $$ PRZ007-202000- Ponce and Vicinity- Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas, Ponce, and Santa Isabel 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 63 75 83 75 87 92 63 75 83 75 87 92 Temp 75 82 86 87 82 79 77 76 75 82 86 87 82 79 77 76 75 82 86 87 82 79 Dewpt 71 73 74 74 74 73 73 72 71 73 75 74 74 73 73 72 71 73 75 75 75 74 RH 87 74 68 65 77 82 87 87 87 74 70 65 77 82 87 87 87 74 70 68 79 85 Wind dir NE E SE SE SE E E E E E SE SE SE E E E E E SE E E E Wind spd 3 5 9 9 6 5 5 4 4 6 11 10 8 5 4 4 4 6 10 10 9 5 Wind gust 20 23 25 23 23 24 20 Clouds SC SC SC B1 B1 B1 SC CL FW SC FW B1 B1 SC SC SC SC FW FW SC SC FW PoP 12hr 20 10 30 10 10 QPF 12hr 0.13-0.67 0.04 0.12-0.97 0.03 0.01-0.33 Snow 12hr MM MM MM Rain shwrs IS IS SC SC SC SC IS IS IS SC SC IS IS IS IS IS IS IS IS IS Tstms IS IS IS Heat index 87 94 95 88 82 87 95 95 88 82 88 95 96 89 82 Max heat 96 106 105 92 96 107 105 92 96 107 106 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 75 87 76 87 76 88 Temp 76 82 87 79 76 82 87 79 76 82 87 79 77 83 88 79 Dewpt 72 73 75 74 72 73 75 74 72 73 74 73 72 73 74 73 PWind dir E E E E E E E SE Wind char LT GN LT GN LT GN LT GN Avg clouds FW SC SC SC SC SC SC SC SC SC SC B1 SC SC SC B1 PoP 12hr 20 30 10 30 20 40 10 50 Rain shwrs IS IS IS IS IS IS IS IS IS IS SC SC IS IS SC SC Tstms IS IS IS IS $$ PRZ008-202000- Northwest- Including the cities of Aguadilla, Camuy, Hatillo, Isabela, and Quebradillas 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 88 91 70 74 83 85 88 92 70 74 83 85 88 92 Temp 74 82 87 88 82 78 76 75 74 82 87 88 82 78 76 75 74 82 86 88 82 78 Dewpt 72 74 75 76 76 76 75 73 72 75 76 76 76 76 75 73 72 75 76 76 76 76 RH 93 77 68 68 82 94 97 94 93 79 70 68 82 94 97 94 93 79 72 68 82 94 Wind dir SE E NE NE NE SE SE SE SE SE E NE NE E SE SE SE E E E E E Wind spd 4 6 6 8 8 4 4 5 4 5 6 9 5 4 4 3 4 5 5 5 6 6 Wind gust 19 Clouds FW FW FW SC OV B2 B2 FW FW CL CL OV OV B1 B1 FW FW CL CL B1 B1 CL PoP 12hr 90 70 80 70 40 QPF 12hr 0.93-1.23 0.09-0.15 0.70-1.23 0.04-0.11 0.05-0.58 Snow 12hr MM MM MM Rain shwrs IS IS NM SC SC IS D D SC SC SC SC Tstms IS IS IS IS IS IS IS Heat index 88 96 98 88 88 96 98 89 88 97 98 88 Max heat 94 108 103 93 95 111 106 93 95 109 106 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 88 74 88 74 88 74 88 Temp 75 82 88 78 75 82 88 78 75 82 88 79 75 82 88 78 Dewpt 73 75 76 76 73 75 77 76 73 75 77 76 73 75 76 76 PWind dir E E E E SE E SE E Wind char LT LT LT GN LT LT LT LT Avg clouds CL FW SC SC SC SC SC B1 SC FW SC B1 SC SC SC B1 PoP 12hr 20 30 10 70 10 60 10 40 Rain shwrs IS IS IS IS IS NM NM IS IS NM NM IS IS SC SC Tstms IS IS IS IS $$ PRZ009-202000- Western Interior- Including the cities of Adjuntas, Lares, Las Marias, Maricao, Sabana Grande, San Sebastian, and Utuado 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 66 72 77 75 84 92 66 72 76 75 84 92 Temp 72 79 83 84 79 75 74 73 72 79 83 84 79 76 74 73 72 79 83 84 79 76 Dewpt 70 72 74 74 73 72 72 71 70 72 74 74 73 72 72 71 70 73 74 75 73 72 RH 93 79 74 72 82 90 93 93 93 79 74 72 82 87 93 93 93 82 74 74 82 87 Wind dir SE SE SE SE E SE SE SE SE SE SE E E SE SE SE E E E E E E Wind spd 3 4 4 4 3 3 3 4 3 4 5 4 3 3 3 3 3 4 4 4 4 4 Wind gust 19 21 24 21 23 23 19 Clouds FW FW FW B1 OV B2 B1 FW FW CL CL OV OV B1 B1 FW FW CL CL B1 B1 CL PoP 12hr 70 60 90 40 50 QPF 12hr 0.23-1.23 0.03-0.13 0.37-1.29 0.02-0.10 0.04-0.58 Snow 12hr MM MM MM Rain shwrs IS IS SC D NM SC IS D D SC SC SC SC Tstms IS IS IS IS IS IS IS IS IS Heat index 82 89 91 82 82 90 92 82 82 90 92 82 Max heat 94 108 106 85 94 111 108 85 94 111 109 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 85 72 85 72 85 72 85 Temp 73 79 85 76 73 79 85 76 73 80 85 76 73 80 85 76 Dewpt 71 72 74 72 71 73 74 72 71 72 74 72 71 72 73 72 PWind dir E E E SE SE SE SE E Wind char LT LT LT LT LT LT LT LT Avg clouds CL FW SC B1 SC SC SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 20 50 10 70 10 60 10 60 Rain shwrs IS SC SC IS IS NM NM IS IS IS IS IS IS IS IS Tstms IS IS IS IS IS IS IS IS $$ PRZ010-202000- Mayaguez and Vicinity- Including the cities of Aguada, Anasco, Hormigueros, Mayaguez, Moca, Rincon, and San German 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 76 89 92 68 75 83 76 90 92 68 75 83 76 90 92 Temp 75 83 88 89 83 79 77 76 75 83 88 90 83 79 77 76 75 83 88 90 83 79 Dewpt 72 75 76 76 76 76 75 74 72 75 77 77 76 76 75 74 73 75 77 77 77 76 RH 90 77 68 66 80 91 94 94 90 77 70 66 80 91 94 94 94 77 70 66 82 91 Wind dir E E SE W E E E E E E SE SE E E E E E E E E E E Wind spd 5 6 4 5 5 4 5 8 6 6 5 5 6 5 4 5 5 6 4 4 5 6 Wind gust 20 18 16 16 17 21 20 19 19 17 16 16 19 19 18 17 Clouds FW FW FW SC B2 B1 B1 FW FW CL CL OV OV B1 B1 FW FW FW FW B1 B1 FW PoP 12hr 70 70 80 50 50 QPF 12hr 0.06-1.22 0.01-0.16 0.02-1.29 0.04-0.17 0.02-0.58 Snow 12hr MM MM MM Rain shwrs IS IS NM SC SC IS D D SC SC SC SC IS Tstms IS IS IS IS IS IS IS IS IS Heat index 91100101 91 82 92101103 92 83 92101103 92 83 Max heat 99 111 108 92 99 111 109 93 100 111 109 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 90 75 90 75 90 75 90 Temp 76 83 90 79 76 83 90 80 76 84 90 80 76 84 90 80 Dewpt 74 75 77 76 74 75 77 76 74 75 77 76 74 75 76 76 PWind dir E E E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC B1 SC SC SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 20 40 20 60 10 60 20 50 Rain shwrs IS IS SC SC IS IS NM NM IS IS NM NM IS IS IS IS Tstms IS IS IS IS IS IS IS $$ PRZ011-202000- Southwest- Including the cities of Cabo Rojo, Guanica, and Lajas 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 91 92 73 76 83 85 91 92 73 76 83 85 91 92 Temp 77 85 89 91 84 80 78 77 76 85 90 91 85 81 78 77 76 85 90 91 85 80 Dewpt 73 75 77 77 76 76 75 74 73 75 78 78 77 76 75 74 73 75 78 78 77 76 RH 87 72 68 64 77 88 91 90 90 72 68 66 77 85 91 90 90 72 68 66 77 88 Wind dir E E SE SE SE E E E E E SE SE SE E E E E E SE E E E Wind spd 6 9 12 13 10 9 8 9 9 11 14 14 10 8 8 8 6 10 13 13 11 9 Wind gust 19 25 27 21 19 21 20 24 29 29 24 21 26 27 23 Clouds SC SC FW SC B1 SC SC CL FW FW CL B1 B1 SC SC FW FW FW FW SC SC FW PoP 12hr 20 10 30 20 10 QPF 12hr 0.10-0.57 0.02-0.09 0.13-0.98 0.02-0.10 0.01-0.33 Snow 12hr MM MM MM Rain shwrs IS IS IS IS SC SC IS IS SC SC IS IS IS IS IS IS IS Tstms IS IS IS Heat index 93103104 94 86 80 93104105 94 86 80 93104106 95 86 Max heat 96 109 108 93 96 111 108 92 96 111 109 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 91 76 91 77 91 Temp 77 85 91 81 77 85 91 81 77 85 91 81 77 85 91 81 Dewpt 74 75 78 77 74 75 78 76 74 75 77 76 74 74 77 75 PWind dir E E E E E SE E SE Wind char LT GN LT GN GN GN LT GN Avg clouds FW FW SC SC SC SC SC SC SC SC SC B1 SC SC SC B1 PoP 12hr 20 20 20 20 20 40 20 40 Rain shwrs IS IS IS IS IS IS IS IS IS IS SC SC IS IS SC SC Tstms IS IS $$ PRZ012-202000- Culebra- Including the city of Culebra 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 88 92 81 85 88 92 81 85 88 92 Temp 81 85 87 88 85 83 82 82 81 85 87 88 85 83 82 82 81 85 87 88 85 83 Dewpt 74 75 75 74 75 75 75 75 75 75 75 75 76 75 76 75 75 76 76 75 76 75 RH 79 72 68 63 72 77 79 79 82 72 68 66 75 77 82 79 82 75 70 66 75 77 Wind dir E E SE SE SE E E SE SE SE SE SE SE SE E E E E E E E E Wind spd 9 10 10 9 9 10 9 8 9 11 12 11 10 10 11 13 14 13 12 12 13 14 Clouds B2 B1 B1 B1 SC B1 B2 SC SC SC CL B1 B1 B1 B1 SC SC SC SC SC SC SC PoP 12hr 40 60 50 40 30 QPF 12hr 0.18 0.16 0.18 0.10 0.07-0.13 Snow 12hr MM MM MM Rain shwrs SC SC SC SC SC SC SC SC IS IS SC SC SC SC IS IS SC SC IS IS SC Heat index 87 94 97 96 94 90 89 88 87 94 97 98 94 91 90 88 88 94 97 98 94 91 Max heat 99 104 104 93 99 104 104 93 99 105 104 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 88 81 88 82 88 82 88 Temp 81 85 88 83 81 85 88 84 82 85 88 84 82 85 88 84 Dewpt 76 76 76 76 76 76 76 76 76 77 76 76 76 77 76 76 PWind dir E E E E E E E E Wind char BZ BZ GN GN GN GN GN GN Avg clouds SC B1 SC SC SC B1 B1 B1 B2 B2 B1 SC SC SC SC SC PoP 12hr 40 40 40 50 50 50 30 30 Rain shwrs SC SC SC SC SC SC SC SC SC SC SC SC IS SC SC IS Tstms IS IS IS IS IS IS $$ PRZ013-202000- Vieques- Including the city of Vieques 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 77 80 83 85 89 92 77 80 83 85 89 92 Temp 80 85 88 89 85 83 81 81 80 85 88 89 85 83 81 81 80 85 88 89 85 83 Dewpt 74 74 74 73 74 73 74 74 74 75 74 74 74 74 75 74 74 75 74 74 74 74 RH 82 70 63 59 70 72 79 79 82 72 63 61 70 74 82 79 82 72 63 61 70 74 Wind dir E E SE SE SE E SE SE SE E SE SE SE SE E E E E E E E E Wind spd 9 9 9 8 8 10 10 9 8 11 12 10 9 10 11 11 13 13 12 12 12 13 Clouds B2 B1 B1 B1 SC B1 B1 SC B1 B1 FW B1 B1 B1 B1 SC SC SC SC SC SC SC PoP 12hr 40 60 50 40 30 QPF 12hr 0.18 0.13 0.17-0.23 0.14 0.05-0.18 Snow 12hr MM MM MM Rain shwrs SC SC SC SC SC SC SC IS SC SC IS SC SC SC SC SC SC SC SC IS IS SC Heat index 85 93 96 96 92 88 87 85 85 93 97 97 93 89 87 85 85 94 97 97 93 89 Max heat 96 102 100 92 96 102 101 92 97 102 101 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 89 81 89 81 89 Temp 81 85 89 83 81 85 89 83 81 85 89 83 81 85 89 83 Dewpt 74 76 74 75 75 76 75 75 75 76 74 74 75 76 74 75 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC B1 B1 SC SC B1 B1 B1 B2 B2 B1 B1 SC SC SC SC PoP 12hr 40 40 40 50 50 50 30 30 Rain shwrs SC SC SC SC SC SC SC SC SC SC SC SC IS SC SC IS Tstms IS IS IS IS IS IS IS $$ VIZ001-202000- St.Thomas...St. John...and Adjacent Islands- Including the cities of Anna`s Retreat, Charlotte Amalie, Charlotte Amalie East, Charlotte Amalie West, and Cruz Bay 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 87 92 73 80 83 85 87 92 73 80 83 85 87 92 Temp 80 84 86 87 84 82 81 80 80 84 86 87 84 82 81 81 80 84 86 87 84 82 Dewpt 74 74 74 73 74 74 74 74 74 75 74 74 74 74 75 75 75 75 74 74 74 75 RH 82 72 68 63 72 77 79 82 82 74 68 65 72 77 82 82 85 74 68 65 72 79 Wind dir E E SE SE SE E SE SE SE E SE SE E E E E E E E E E E Wind spd 10 10 10 9 9 10 9 9 10 11 12 12 11 12 14 14 14 12 13 14 14 14 Clouds B1 B1 B1 B1 SC B1 B1 SC SC SC FW B1 B1 SC SC SC SC SC SC SC SC SC PoP 12hr 40 60 30 30 30 QPF 12hr 0.16 0.09 0.07-0.15 0.05 0.03-0.10 Snow 12hr MM MM MM Rain shwrs SC SC SC SC SC SC SC IS IS IS IS SC SC IS IS IS IS IS IS IS IS SC Heat index 85 91 94 94 91 88 87 86 86 92 94 95 91 89 87 86 86 92 95 95 92 89 Max heat 98 103 102 93 99 104 104 93 99 104 102 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 87 80 87 81 87 81 87 Temp 80 84 87 82 80 84 87 83 81 84 87 83 81 84 87 83 Dewpt 75 76 75 75 76 76 75 76 76 76 75 75 76 76 75 76 PWind dir E E E E E E E E Wind char BZ BZ GN GN GN GN GN GN Avg clouds SC SC SC SC SC B1 B1 B1 B2 B2 B1 SC SC SC SC SC PoP 12hr 30 30 40 50 50 50 30 20 Rain shwrs SC SC SC SC SC SC SC SC SC SC SC SC SC SC IS IS Tstms IS IS IS IS IS IS $$ VIZ002-202000- St Croix- Including the cities of Christiansted, Frederiksted, Frederiksted Southeast, and Grove Place 231 AM AST Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 92 77 80 83 85 88 92 77 80 83 85 88 92 Temp 80 85 87 88 85 83 81 80 80 85 87 88 85 83 81 81 80 85 87 88 85 82 Dewpt 75 75 75 75 75 75 75 75 75 76 76 75 75 76 76 75 75 76 76 75 75 76 RH 85 72 68 66 72 77 82 85 85 75 70 66 72 80 85 82 85 75 70 66 72 82 Wind dir E E SE SE SE E E E E E SE SE E E E E E E E E E E Wind spd 8 9 10 9 9 9 8 9 9 10 12 11 11 11 11 11 12 12 14 14 13 12 Clouds B2 B1 B1 B1 B2 SC SC SC SC SC FW SC SC SC SC B1 B1 SC SC SC SC SC PoP 12hr 40 60 40 40 30 QPF 12hr 0.20 0.04 0.06-0.12 0.08 0.03 Snow 12hr MM MM MM Rain shwrs SC SC SC SC SC SC IS IS IS IS IS SC SC IS IS SC SC IS IS IS IS SC Heat index 85 93 97 97 93 90 88 86 85 94 98 98 93 90 88 86 86 94 98 98 93 90 Max heat 99 106 104 92 99 107 105 93 99 107 105 Heat Y Y Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 88 80 88 81 88 81 88 Temp 80 85 88 82 80 85 88 83 81 85 88 83 81 85 88 83 Dewpt 76 76 76 76 76 77 76 77 76 76 76 76 76 76 76 76 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC B1 B1 B1 B2 B1 B1 SC SC SC SC SC PoP 12hr 30 30 40 50 50 40 30 30 Rain shwrs SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC IS Tstms IS IS IS IS IS IS $$