Area Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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793 FOCA52 TJSJ 211831 AFMSJU Area Forecast Matrices National Weather Service San Juan PR 231 PM AST Fri Aug 21 2026 PRZ001-220800- San Juan and Vicinity- Including the cities of Bayamon, Carolina, Catano, Guaynabo, San Juan, Toa Alta, Toa Baja, and Trujillo Alto 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 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 78 82 84 90 93 72 78 82 84 90 93 73 78 82 Temp 85 81 80 78 79 85 89 90 86 82 80 78 79 85 89 90 86 82 80 79 79 86 Dewpt 75 75 76 75 75 76 75 75 75 75 76 75 75 76 75 76 76 76 76 76 76 77 RH 72 82 88 91 88 75 64 62 70 79 88 91 88 75 64 64 72 82 88 91 91 75 Wind dir E E E E SE E E E E E E E SE E E E E E E E E E Wind spd 13 9 8 8 5 6 11 14 13 8 6 8 8 9 12 14 14 9 8 6 8 8 Wind gust 25 24 26 25 Clouds FW SC SC SC SC FW SC SC B1 SC SC SC SC SC SC FW FW B1 B1 B1 B1 SC PoP 12hr 20 40 30 40 40 QPF 12hr 0.03-0.09 0.06 0.04-0.11 0.02-0.11 0.03-0.08 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS IS IS SC IS IS SC SC SC SC IS IS SC SC SC SC IS Obvis H Heat index 94 87 84 80 82 95100101 96 88 84 80 82 95100102 97 90 86 82 83 96 Max heat 107 93 100 109 108 93 100 110 109 95 102 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 78 90 78 91 78 90 78 90 Temp 90 82 79 86 90 82 79 86 91 83 79 86 90 82 79 85 90 82 Dewpt 77 77 76 77 78 77 76 77 77 77 76 77 77 76 76 77 71 74 PWind dir E E E E E E E E E Wind char GN LT GN LT GN GN GN GN GN Avg clouds SC SC SC SC SC B1 B1 B1 SC SC B1 B1 SC FW FW FW SC SC PoP 12hr 20 30 40 40 40 40 20 5 30 Rain shwrs IS IS IS IS SC SC SC SC SC SC SC SC IS IS IS IS SC Tstms IS IS IS IS $$ PRZ002-220800- Northeast- Including the cities of Ceiba, Canovanas, Fajardo, Humacao, Loiza, Luquillo, Naguabo, and Rio Grande 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 66 77 82 75 88 94 66 78 82 75 88 94 67 78 82 Temp 84 81 79 78 78 84 87 88 85 81 80 78 79 84 87 88 85 81 80 79 79 84 Dewpt 74 74 74 74 74 74 73 74 74 74 74 74 74 74 74 75 75 75 75 75 75 75 RH 72 79 85 88 88 72 63 63 70 79 82 88 85 72 65 66 72 82 85 88 88 74 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 13 10 10 10 9 9 11 12 11 8 9 10 9 11 12 12 11 9 10 9 10 9 Wind gust 20 21 20 23 19 23 19 20 20 Clouds FW SC SC SC SC FW SC SC B1 B1 SC B1 B1 SC SC FW FW B1 B1 B1 B1 SC PoP 12hr 30 50 40 40 40 QPF 12hr 0.08 0.09 0.11 0.09-0.19 0.07 Snow 12hr MM MM MM Rain shwrs SC SC IS SC IS SC IS SC SC SC SC SC SC SC IS IS SC SC SC SC IS Tstms IS Obvis H Heat index 91 85 83 80 81 91 95 96 92 86 84 81 82 91 96 97 93 87 85 82 83 92 Max heat 100 92 97 103 102 93 97 105 104 94 99 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 78 88 78 88 78 88 78 88 Temp 88 81 79 84 88 81 79 84 88 82 79 84 88 82 79 84 88 82 Dewpt 75 75 75 75 76 76 75 75 75 75 75 75 75 75 74 75 73 75 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC B1 B1 B2 B2 B1 SC B1 B1 SC SC SC SC SC B1 PoP 12hr 30 30 50 60 60 40 30 30 40 Rain shwrs IS IS IS SC SC NM NM NM NM SC SC SC IS IS IS IS SC SC Tstms IS IS IS IS $$ PRZ003-220800- Southeast- Including the cities of Arroyo, Guayama, Maunabo, Patillas, Salinas, and Yabucoa 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 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 77 82 79 89 94 68 77 82 79 89 94 69 77 82 Temp 85 81 79 78 78 84 88 89 85 81 79 78 78 84 88 89 85 81 80 78 79 85 Dewpt 72 73 74 74 73 73 73 72 72 73 74 73 73 73 73 73 74 74 75 74 74 74 RH 65 77 85 88 85 70 61 57 65 77 85 85 85 70 61 59 70 79 85 88 85 70 Wind dir E NE NE E E E E E E E E E E E E E E E E E E E Wind spd 14 9 8 8 8 8 11 14 11 8 8 8 9 9 12 12 11 9 9 9 9 9 Wind gust 28 31 23 25 26 25 19 Clouds FW SC FW FW FW CL FW SC B1 SC SC SC B1 FW FW FW FW SC SC SC SC FW PoP 12hr 20 40 50 10 10 QPF 12hr 0.03 0.06 0.04-0.12 0.00-0.18 0.02 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS SC IS IS SC SC IS IS IS IS IS IS IS IS IS Obvis H Heat index 90 85 82 80 90 96 95 90 85 82 80 91 96 97 93 86 84 81 82 92 Max heat 102 91 99 105 104 91 99 107 107 92 102 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 78 88 77 89 78 89 78 89 Temp 89 81 79 84 88 81 78 84 89 81 79 84 89 81 79 84 89 81 Dewpt 74 75 74 75 75 75 75 75 74 74 74 74 74 74 73 74 72 74 PWind dir E E E E E NE E NE E Wind char GN LT GN LT GN GN GN GN GN Avg clouds FW FW SC SC SC SC B1 B1 B1 SC SC SC FW FW SC SC SC SC PoP 12hr 20 20 40 40 40 20 10 10 40 Rain shwrs IS IS IS IS IS IS SC SC SC IS IS IS IS IS IS IS IS SC Tstms IS IS IS $$ PRZ004-220800- Eastern Interior- Including the cities of Aguas Buenas, Caguas, Cayey, Cidra, Comerio, Gurabo, Juncos, Las Piedras, and San Lorenzo 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 69 74 78 77 87 93 68 74 78 77 87 94 69 75 79 Temp 83 78 76 75 75 82 86 87 83 78 76 75 75 82 86 87 84 79 77 76 76 83 Dewpt 72 73 73 73 72 74 72 72 72 73 73 72 72 74 73 73 73 74 74 74 74 75 RH 70 85 90 94 90 77 63 61 70 85 90 90 90 77 65 63 70 85 90 94 94 77 Wind dir E NE E E E E E E E E E E E E E E E E E E E E Wind spd 12 5 4 4 4 5 10 12 10 4 3 5 5 8 11 12 11 5 5 5 5 6 Clouds FW SC SC FW SC FW SC SC B1 SC SC SC B1 SC SC FW FW SC SC SC SC SC PoP 12hr 30 40 40 30 30 QPF 12hr 0.04 0.07 0.04-0.12 0.02-0.12 0.01-0.08 Snow 12hr MM MM MM Rain shwrs SC IS IS IS IS IS IS SC IS IS SC SC IS IS IS IS IS IS IS IS IS Tstms IS Obvis H Heat index 88 80 88 93 94 88 80 88 94 95 90 82 90 Max heat 102 88 98 104 103 89 99 107 105 91 101 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 75 87 75 88 75 87 75 87 Temp 88 79 76 82 87 79 76 83 88 79 76 83 87 79 76 83 87 79 Dewpt 74 74 74 75 75 74 74 75 74 74 74 74 74 73 73 74 70 73 PWind dir E E E E E E E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC SC SC SC SC SC B1 SC SC B1 SC SC FW FW FW SC SC PoP 12hr 20 30 30 40 40 40 20 10 30 Rain shwrs IS IS IS IS SC SC SC SC SC IS SC SC IS IS IS IS IS SC Tstms IS IS IS $$ PRZ005-220800- North Central- Including the cities of Arecibo, Barceloneta, Dorado, Florida, Manati, Vega Alta, and Vega Baja 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 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 94 72 75 82 85 90 94 73 76 82 Temp 85 80 78 77 77 85 89 90 85 80 78 76 77 85 89 90 86 81 79 77 78 85 Dewpt 76 76 75 75 74 76 76 77 77 76 75 74 74 76 76 77 78 77 76 75 76 77 RH 75 88 91 94 90 75 66 66 77 88 91 94 90 75 66 66 77 88 91 94 94 77 Wind dir NE E E E E E E NE NE E E SE SE E E E E E E E E E Wind spd 16 11 9 8 6 6 11 14 16 11 8 6 6 6 12 17 17 12 8 6 6 8 Wind gust 26 28 23 23 32 32 23 Clouds SC FW FW FW SC FW FW SC B1 FW FW SC SC SC SC SC SC SC SC SC SC FW PoP 12hr 20 40 20 20 10 QPF 12hr 0.03 0.05-0.56 0.03 0.02-0.46 0.00-0.05 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS IS SC IS IS IS IS IS IS SC SC IS IS IS IS IS Tstms IS IS IS Obvis H Heat index 94 85 94101102 96 85 94101104 97 87 81 95 Max heat 108 93 101 113 112 93 101 114 112 94 103 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 91 76 90 76 90 Temp 90 81 77 85 90 81 77 85 91 81 77 85 90 81 77 85 90 81 Dewpt 78 77 76 78 79 77 76 77 78 77 76 77 78 77 75 77 70 74 PWind dir E E E E E E E E E Wind char GN LT GN LT GN GN GN GN GN Avg clouds FW FW FW FW SC SC SC SC FW FW FW FW SC FW CL CL FW FW PoP 12hr 10 10 30 10 5 20 20 0 10 Rain shwrs IS IS IS IS IS SC IS IS IS IS IS IS IS IS IS IS $$ PRZ006-220800- Central Interior- Including the cities of Aibonito, Barranquitas, Ciales, Coamo, Corozal, Jayuya, Morovis, Naranjito, Orocovis, and Villalba 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 72 77 75 85 93 62 72 77 75 85 93 63 73 78 Temp 81 77 75 73 74 80 84 85 81 76 74 73 73 80 84 85 82 77 75 74 74 81 Dewpt 71 71 72 72 72 72 72 71 71 71 72 71 71 72 72 72 72 72 73 72 72 73 RH 72 82 90 97 93 77 67 63 72 85 93 93 93 77 67 65 72 85 94 93 93 77 Wind dir E NE E E E E E E E E E E E E E E E E E E E E Wind spd 12 5 4 3 4 5 8 10 9 5 3 4 4 5 10 11 10 5 4 4 4 6 Wind gust 26 19 31 20 24 25 24 Clouds FW FW FW FW FW CL FW SC B2 FW FW SC SC FW FW SC SC SC SC SC SC FW PoP 12hr 10 50 20 10 5 QPF 12hr 0.02 0.04-0.73 0.03 0.00-0.46 0.01 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS IS SC IS IS IS IS IS IS IS IS IS IS IS Tstms IS IS IS Obvis H Heat index 85 84 90 90 85 84 90 91 86 85 Max heat 101 86 97 105 104 86 97 106 105 88 99 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 73 85 73 85 73 85 73 85 Temp 85 77 74 80 85 77 74 81 85 77 74 80 85 77 74 80 85 77 Dewpt 73 73 73 74 74 73 73 73 72 72 72 73 73 72 72 73 65 71 PWind dir E E E E E E E E E Wind char GN LT LT LT GN LT GN LT GN Avg clouds FW SC FW FW SC SC FW FW SC SC FW FW SC FW CL FW FW FW PoP 12hr 40 5 40 0 30 5 10 0 0 Rain shwrs SC SC IS IS IS SC IS IS IS IS IS IS IS IS Tstms IS IS IS IS $$ PRZ007-220800- Ponce and Vicinity- Including the cities of Guayanilla, Juana Diaz, Yauco, Penuelas, Ponce, and Santa Isabel 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 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 75 82 75 89 94 62 75 82 75 89 94 63 76 82 Temp 84 80 78 76 77 84 88 89 85 80 78 76 76 84 88 89 85 80 78 77 77 84 Dewpt 71 71 71 71 71 70 72 72 72 72 71 70 70 70 71 72 74 73 72 72 71 71 RH 65 74 79 85 82 63 59 57 65 77 79 82 82 63 57 57 70 79 82 85 82 65 Wind dir E E NE NE NE E SE SE SE E NE NE NE E SE SE SE E E E E E Wind spd 13 8 5 4 4 6 10 13 9 6 4 4 4 5 12 12 11 8 5 5 5 8 Wind gust 29 24 31 24 25 27 25 19 Clouds SC FW FW FW FW CL CL SC B1 FW FW FW SC CL CL SC SC FW FW FW FW CL PoP 12hr 5 50 20 30 0 QPF 12hr 0.01 0.04-0.66 0.02 0.00-0.45 0 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS SC IS SC SC Tstms IS IS IS Obvis H Heat index 90 83 80 88 95 96 90 83 88 95 96 92 84 81 89 Max heat 101 91 94 105 104 91 94 106 105 92 95 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 76 88 76 89 76 89 76 89 Temp 89 81 77 84 88 80 77 84 89 80 77 84 89 80 77 84 89 80 Dewpt 73 73 72 72 74 74 72 72 73 73 71 71 73 73 71 71 69 72 PWind dir E E E E E NE E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds FW SC FW FW FW SC FW FW FW SC CL CL FW FW FW FW FW FW PoP 12hr 30 0 30 0 20 0 5 0 5 Rain shwrs SC SC IS IS IS SC IS IS IS IS IS IS Tstms IS IS IS $$ PRZ008-220800- Northwest- Including the cities of Aguadilla, Camuy, Hatillo, Isabela, and Quebradillas 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 74 82 85 88 93 70 74 82 85 88 94 70 75 82 Temp 83 79 77 75 76 83 87 88 83 78 76 75 75 83 87 88 84 79 77 76 76 83 Dewpt 75 75 74 74 73 74 75 76 76 75 75 73 72 74 75 77 76 76 75 74 74 76 RH 77 88 90 97 90 74 68 68 80 91 97 94 90 74 68 70 77 91 94 94 94 80 Wind dir NE E E E E E NE NE NE E E E E E E NE E E E E E E Wind spd 16 12 11 10 10 8 9 12 12 13 10 9 8 6 10 13 13 12 8 8 8 9 Wind gust 26 23 23 20 19 23 25 25 19 20 27 28 24 Clouds SC FW FW FW FW FW FW B1 B1 SC SC SC CL FW FW B2 B2 SC SC SC SC CL PoP 12hr 10 50 10 60 10 QPF 12hr 0.02 0.08-0.64 0.03 0.32-0.47 0.01 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS IS SC SC IS IS IS IS IS NM NM IS IS IS IS Tstms IS IS IS IS Obvis H Heat index 91 81 89 97 99 92 80 89 97100 93 82 91 Max heat 105 92 97 109 108 92 96 110 109 92 99 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 75 89 75 89 75 88 75 88 Temp 88 79 76 83 89 79 76 83 89 79 76 83 88 79 76 83 88 79 Dewpt 78 77 75 76 78 77 74 76 77 77 75 75 77 76 74 75 71 74 PWind dir E E E E E E E E E Wind char GN GN LT LT GN GN GN GN GN Avg clouds FW SC FW FW SC SC FW FW FW SC FW FW FW FW CL CL FW SC PoP 12hr 30 5 50 5 10 0 10 0 20 Rain shwrs SC IS IS IS SC SC IS IS IS IS IS IS IS IS Tstms IS IS IS $$ PRZ009-220800- Western Interior- Including the cities of Adjuntas, Lares, Las Marias, Maricao, Sabana Grande, San Sebastian, and Utuado 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 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 65 72 76 75 86 94 65 71 75 75 86 94 66 72 76 Temp 81 77 74 73 73 80 85 86 81 76 74 72 73 80 85 86 82 77 75 73 74 81 Dewpt 72 72 72 71 71 72 73 73 73 73 72 71 69 72 72 74 74 74 73 72 72 73 RH 74 85 93 93 93 77 67 65 77 90 93 97 87 77 65 68 77 90 94 97 93 77 Wind dir E 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 4 4 4 5 5 4 4 4 4 4 6 5 5 4 4 4 4 5 Wind gust 21 21 24 14 25 26 Clouds SC FW FW FW FW CL FW B1 B2 FW FW FW FW FW FW B2 B2 FW FW FW FW CL PoP 12hr 5 60 5 60 0 QPF 12hr 0.01 0.12-0.77 0.01 0.15-0.46 0 Snow 12hr MM MM MM Rain shwrs SC IS IS IS SC NM IS IS IS NM NM Tstms IS IS IS IS Obvis H Heat index 86 84 91 93 86 84 91 94 87 85 Max heat 105 85 97 111 109 86 97 111 110 87 99 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 73 86 73 86 73 86 73 86 Temp 86 77 74 81 86 77 74 81 86 77 73 81 86 77 73 81 86 77 Dewpt 76 74 72 74 76 74 72 73 75 74 72 73 75 74 72 73 67 71 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 B1 FW FW SC B1 CL CL FW SC FW FW FW SC CL CL FW SC PoP 12hr 60 5 60 0 40 5 30 0 40 Rain shwrs NM NM IS IS NM NM SC SC IS IS SC SC SC SC Tstms IS IS IS IS IS IS IS IS $$ PRZ010-220800- Mayaguez and Vicinity- Including the cities of Aguada, Anasco, Hormigueros, Mayaguez, Moca, Rincon, and San German 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 75 82 77 91 94 67 74 82 77 91 94 68 75 82 Temp 85 80 78 76 77 85 90 91 86 80 77 75 76 85 90 91 86 80 78 76 77 85 Dewpt 76 76 75 74 73 75 76 77 77 76 75 73 72 75 76 77 77 77 76 74 74 76 RH 75 88 91 94 87 72 64 64 75 88 94 94 87 72 64 64 75 91 94 94 90 75 Wind dir E NE E E E E E E E E E E E E E E E E E E E E Wind spd 10 10 11 9 8 5 5 5 5 9 8 8 5 5 5 6 6 8 6 6 6 6 Wind gust 21 25 27 25 23 17 16 16 21 19 16 17 18 17 19 23 20 Clouds SC FW CL FW FW CL FW B1 B2 FW SC SC FW FW FW B1 B1 SC SC SC SC CL PoP 12hr 5 60 5 50 10 QPF 12hr 0.01 0.02-0.76 0.01-0.06 0.02-0.46 0.01 Snow 12hr MM MM MM Rain shwrs SC IS IS IS IS SC NM IS IS IS NM NM IS IS IS IS Tstms IS IS IS IS Heat index 95 84 93102104 96 84 93101105 97 86 80 95 Max heat 108 92 102 115 112 92 101 115 113 93 104 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 76 91 76 91 76 91 76 91 Temp 91 81 77 85 91 81 77 85 91 81 77 85 91 81 77 85 91 81 Dewpt 79 77 75 76 79 77 75 76 79 77 75 76 79 77 74 76 72 74 PWind dir E E E E E E E E E Wind char LT LT LT LT GN LT LT LT LT Avg clouds SC B1 SC SC SC B1 FW FW FW B1 SC FW FW SC CL CL FW SC PoP 12hr 60 20 60 5 50 10 40 0 40 Rain shwrs NM NM IS IS NM NM IS IS SC IS IS IS SC SC SC SC Tstms IS IS IS IS IS IS IS IS $$ PRZ011-220800- Southwest- Including the cities of Cabo Rojo, Guanica, and Lajas 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 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 82 85 93 94 72 75 82 85 93 94 73 76 82 Temp 86 80 78 76 77 86 92 93 87 81 78 76 77 86 92 93 87 81 79 77 78 86 Dewpt 73 75 73 72 71 72 73 74 73 74 74 72 71 72 74 74 75 76 75 73 72 72 RH 65 85 85 87 82 63 54 54 63 79 88 87 82 63 56 54 68 85 88 87 82 63 Wind dir E E E E E E SE E SE E E E E E SE SE E E E E E E Wind spd 11 9 5 4 5 9 12 12 8 8 8 5 5 6 13 16 9 10 11 8 6 10 Wind gust 26 21 26 28 20 28 31 21 21 27 21 Clouds SC FW CL CL CL CL CL SC B1 FW FW FW FW CL CL FW FW FW FW FW FW CL PoP 12hr 5 40 10 10 0 QPF 12hr 0 0.04-0.37 0.01 0.01-0.23 0 Snow 12hr MM MM MM Rain shwrs IS SC SC IS IS IS IS Tstms IS Obvis H Heat index 94 85 92101103 95 85 92101103 97 88 81 93 Max heat 106 91 95 109 108 91 95 111 110 92 98 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 93 76 93 76 93 76 93 76 93 Temp 93 82 77 87 93 82 77 87 93 82 77 86 93 81 77 86 93 81 Dewpt 75 76 73 72 76 76 74 74 76 76 72 72 75 76 73 72 72 75 PWind dir E E E E E E E E E Wind char GN LT GN GN BZ LT GN LT GN Avg clouds FW SC SC FW FW SC FW FW FW SC FW FW FW FW CL CL FW FW PoP 12hr 30 20 20 0 20 0 5 0 5 Rain shwrs IS IS IS IS IS IS IS IS IS IS IS IS IS $$ PRZ012-220800- Culebra- Including the city of Culebra 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 85 89 94 81 85 89 94 81 Temp 85 83 82 81 82 86 88 89 86 84 83 82 82 86 89 89 87 84 83 82 82 86 Dewpt 77 76 76 76 76 76 76 76 77 76 76 76 76 77 77 77 78 77 77 77 77 78 RH 77 80 82 85 82 72 68 66 75 77 80 82 82 75 68 68 75 80 82 85 85 77 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 17 18 19 19 13 16 14 14 13 16 17 17 16 17 16 14 14 17 18 17 16 17 Clouds FW SC SC SC SC SC SC SC B2 B1 SC B1 SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 50 40 20 20 QPF 12hr 0.08 0.10 0.10 0.17 0.03 Snow 12hr MM MM MM Rain shwrs IS SC IS SC IS SC IS SC SC SC SC SC IS IS IS IS IS IS IS IS IS Tstms IS Obvis H Heat index 96 91 90 88 88 96 99100 97 92 91 88 89 97100101 98 93 92 90 90 98 Max heat 102 93 100 106 105 94 100 107 106 95 101 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 81 89 81 89 81 89 81 89 Temp 89 84 82 86 89 84 82 86 89 84 82 86 89 84 82 86 89 84 Dewpt 78 77 77 78 78 78 77 78 78 77 77 77 77 77 76 77 74 76 PWind dir E E E E E E E E E Wind char BZ GN GN BZ BZ BZ BZ BZ BZ Avg clouds SC SC SC SC SC SC B1 B1 SC SC SC SC SC FW CL FW FW SC PoP 12hr 20 20 40 40 30 30 20 0 40 Rain shwrs IS IS IS IS IS SC SC SC IS IS IS IS IS IS IS SC Tstms IS IS IS $$ PRZ013-220800- Vieques- Including the city of Vieques 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 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 80 85 89 92 81 85 89 93 81 Temp 86 83 82 81 81 86 89 89 87 84 83 81 82 86 89 89 87 84 83 82 82 86 Dewpt 74 74 75 75 74 75 74 74 74 74 74 74 74 75 74 75 75 75 76 76 76 76 RH 68 74 79 82 79 70 61 61 65 72 74 79 77 70 61 64 68 74 80 82 82 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 14 14 13 14 13 14 17 17 16 17 16 14 14 17 18 17 17 16 Clouds FW SC SC SC SC FW SC SC B2 B1 SC B1 B1 SC SC FW FW SC SC SC SC SC PoP 12hr 30 50 50 20 20 QPF 12hr 0.08 0.10 0.12 0.09-0.18 0.03 Snow 12hr MM MM MM Rain shwrs IS IS IS SC IS SC IS SC SC SC SC SC IS IS IS IS IS IS IS IS IS Tstms IS Obvis H Heat index 93 90 88 86 87 94 97 98 95 91 89 87 88 95 98 99 96 92 90 88 89 96 Max heat 99 91 97 101 101 92 98 103 103 93 100 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 81 89 81 90 81 89 81 89 Temp 90 84 81 86 89 84 82 86 90 84 82 86 89 84 82 86 89 84 Dewpt 75 76 76 76 76 76 76 76 75 76 76 76 75 75 75 76 74 76 PWind dir E E E E E E E E E Wind char BZ GN GN BZ BZ BZ BZ BZ BZ Avg clouds SC SC SC SC SC B1 B2 B1 SC FW FW FW FW FW FW FW SC B1 PoP 12hr 10 10 50 50 20 5 10 5 50 Rain shwrs IS IS IS IS IS SC SC SC IS IS IS IS IS IS IS IS IS SC Tstms IS IS IS $$ VIZ001-220800- St.Thomas...St. John...and Adjacent Islands- Including the cities of Anna`s Retreat, Charlotte Amalie, Charlotte Amalie East, Charlotte Amalie West, and Cruz Bay 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 80 82 85 88 94 74 80 82 85 88 94 74 81 82 Temp 85 82 81 80 81 85 87 88 86 83 82 81 81 85 88 88 86 83 82 81 82 85 Dewpt 74 75 75 75 75 75 74 74 74 75 75 75 75 75 75 75 75 76 76 76 76 76 RH 70 79 82 85 82 72 65 63 68 77 79 82 82 72 66 66 70 80 82 85 82 75 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 18 18 19 18 14 16 16 13 13 14 18 17 16 17 17 14 14 17 18 17 16 17 Clouds FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 40 30 20 20 QPF 12hr 0.07 0.08 0.07 0.09-0.17 0.03 Snow 12hr MM MM MM Rain shwrs SC IS SC SC SC IS SC SC SC SC IS IS IS IS IS IS IS IS IS IS Obvis H Heat index 92 89 87 85 86 93 96 96 93 89 88 86 86 94 97 98 95 91 89 87 88 95 Max heat 103 92 99 106 105 94 100 107 106 95 102 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 80 88 81 88 80 88 80 88 Temp 88 83 81 85 88 83 81 85 88 83 81 85 88 83 81 85 88 83 Dewpt 76 76 76 76 76 76 76 76 75 76 76 76 75 75 76 76 74 75 PWind dir E E E E E E E E E Wind char BZ GN GN BZ BZ BZ BZ BZ BZ Avg clouds SC FW SC SC SC B1 B2 B1 FW FW SC SC FW FW CL CL FW SC PoP 12hr 20 20 50 50 20 20 10 0 40 Rain shwrs IS IS IS IS IS SC SC SC IS IS IS IS IS IS SC Tstms IS IS IS $$ VIZ002-220800- St Croix- Including the cities of Christiansted, Frederiksted, Frederiksted Southeast, and Grove Place 231 PM AST Fri Aug 21 2026 Date 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 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 80 85 89 94 80 85 89 94 81 Temp 85 83 82 80 81 85 88 89 86 83 82 81 81 86 88 89 86 83 82 81 82 86 Dewpt 75 76 76 75 75 75 75 75 75 75 75 75 75 76 76 76 77 77 77 77 76 77 RH 72 80 82 85 82 72 66 64 70 77 79 82 82 72 68 66 75 82 85 88 82 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 16 17 16 13 16 16 12 13 13 17 16 14 16 16 14 14 14 16 16 14 16 Clouds FW FW FW FW SC FW SC SC SC SC SC SC SC SC SC FW FW SC SC SC SC SC PoP 12hr 20 30 30 20 20 QPF 12hr 0.03 0.07 0.07 0.03-0.09 0.03 Snow 12hr MM MM MM Rain shwrs IS IS IS IS IS IS IS SC SC SC IS SC IS IS IS IS IS IS IS IS IS Obvis H Heat index 94 90 88 86 86 94 98 99 95 91 89 87 87 95 99100 97 92 90 88 89 96 Max heat 104 93 100 107 106 94 100 109 108 96 102 Date 08/24 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 89 81 89 81 89 80 89 Temp 89 83 81 86 89 83 81 86 89 83 81 86 89 83 81 86 89 83 Dewpt 77 77 77 77 77 77 77 77 76 77 76 76 76 76 76 76 74 74 PWind dir E E E E E E E E E Wind char GN GN GN BZ BZ BZ BZ BZ BZ Avg clouds SC SC SC SC SC SC B1 B1 SC FW SC FW FW FW FW FW FW SC PoP 12hr 10 20 50 50 20 10 10 5 50 Rain shwrs IS IS IS IS IS SC SC SC IS IS IS IS IS IS IS IS IS SC Tstms IS IS IS $$