FOCA52 TJSJ 170632 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 232 AM AST Sat Oct 17 2026 PRZ001-172000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 232 AM AST Sat Oct 17 2026 Date Sat 10/17/26 Sun 10/18/26 Mon 10/19/26 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 90 78 91 78 90 Temp 79 85 89 90 84 82 80 79 78 85 90 91 85 82 80 79 78 85 89 90 84 82 Dewpt 74 74 75 74 74 75 75 74 74 74 75 75 75 75 75 74 74 74 75 74 74 74 RH 85 70 64 60 72 79 85 85 88 70 62 60 72 79 85 85 88 70 64 60 72 77 Wind dir SE E E E E E SE SE SE SE E E E SE SE SE SE SE E E E E Wind spd 8 9 12 13 12 8 6 5 4 4 9 14 12 8 6 4 3 5 10 13 11 8 Clouds SC SC FW B2 B2 SC SC SC SC SC SC SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 60 30 50 50 60 QPF 12hr 0.09 0.22 0.22 0.19 0.38 Rain shwrs C C S L L S C C S C S C C C C C C C C C C L Tstms S S S S Heat index 93 99 99 91 88 85 93101102 93 88 85 92 99 99 91 87 Max heat 93 100 99 87 93 102 100 87 92 100 98 Date Tue 10/20/26 Wed 10/21/26 Thu 10/22/26 Fri 10/23/26 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 90 78 91 78 91 78 90 Temp 79 85 90 82 79 85 91 82 79 85 91 82 79 85 90 82 Dewpt 74 73 74 74 74 73 74 74 74 74 75 75 75 75 75 75 PWind dir SE E SE SE SE SE SE SE Wind char LT GN LT GN LT GN LT GN Avg clouds B2 B2 B1 B1 SC B1 B1 B2 B1 SC SC B1 B1 B1 B2 B2 PoP 12hr 60 50 40 60 40 50 40 70 Rain shwrs L L C C C C L L C C C C C C L L Tstms S S S S $$ PRZ002-172000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 232 AM AST Sat Oct 17 2026 Date Sat 10/17/26 Sun 10/18/26 Mon 10/19/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 79 89 79 89 Temp 79 85 88 89 84 82 81 80 79 85 88 89 84 82 81 80 79 85 88 89 84 82 Dewpt 75 76 75 75 75 75 75 75 75 76 75 75 75 75 75 75 74 75 75 75 75 75 RH 88 75 66 64 74 79 82 85 88 75 66 64 74 79 82 85 85 72 66 64 74 79 Wind dir E E E E SE E E E E E E SE E E E E E E E E E E Wind spd 8 10 10 10 8 8 8 6 6 5 8 8 8 8 8 5 4 8 10 9 8 6 Clouds SC SC SC B2 B2 SC SC SC SC SC SC B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 60 50 60 50 60 QPF 12hr 0.10 0.25 0.24 0.19 0.45 Rain shwrs C C C L L C C C C C C L C C C C C C C C C L Tstms S S S S S Heat index 94 98 99 92 89 86 84 94 98 99 92 89 86 84 93 98 99 92 89 Max heat 94 100 98 88 94 100 99 88 93 99 98 Date Tue 10/20/26 Wed 10/21/26 Thu 10/22/26 Fri 10/23/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 89 78 89 79 90 79 90 Temp 80 85 89 81 79 84 89 82 80 85 90 82 80 85 90 82 Dewpt 74 75 75 75 74 75 75 75 75 76 76 76 76 76 76 75 PWind dir E SE SE SE SE SE SE SE Wind char LT LT LT LT LT LT LT GN Avg clouds B2 B2 B1 B1 B2 B2 B1 B2 B2 B1 B1 B2 B2 B2 B2 B2 PoP 12hr 60 50 50 50 50 50 50 60 Rain shwrs L L C C C C C C C C C C C C L L Tstms S S $$ PRZ007-172000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 232 AM AST Sat Oct 17 2026 Date Sat 10/17/26 Sun 10/18/26 Mon 10/19/26 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 90 76 90 76 90 Temp 76 84 89 90 83 80 78 77 76 84 89 90 83 80 78 77 76 84 89 90 83 80 Dewpt 71 73 76 77 76 75 74 73 71 74 77 77 77 75 74 72 71 74 77 77 76 75 RH 85 70 66 66 80 85 88 87 85 72 68 66 82 85 88 85 85 72 68 66 80 85 Wind dir NE E SE SE SE E NE NE NE NE SE SE E E NE NE NE NE SE SE E E Wind spd 4 5 12 10 8 5 4 4 3 4 10 9 4 3 4 3 3 3 9 10 5 4 Clouds CL CL FW CL FW CL CL FW SC SC FW SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 10 20 20 10 20 QPF 12hr 0.02 0.04 0.07 0.02 0.29 Rain shwrs S S S S S S S S S S S S S Heat index 90100103 91 85 91102103 92 85 91102103 91 85 Max heat 90 103 101 84 91 103 101 84 91 103 101 Date Tue 10/20/26 Wed 10/21/26 Thu 10/22/26 Fri 10/23/26 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 89 76 89 76 90 76 90 Temp 77 83 89 80 77 83 89 80 77 84 90 80 77 84 90 81 Dewpt 72 74 77 74 72 74 76 74 73 75 77 75 73 75 77 75 PWind dir NE E E E E SE E E Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW FW FW CL FW SC SC SC SC B1 SC SC FW FW B1 PoP 12hr 10 10 20 20 50 50 10 50 Rain shwrs S S S S S S S S C C C S S C C $$ PRZ008-172000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 232 AM AST Sat Oct 17 2026 Date Sat 10/17/26 Sun 10/18/26 Mon 10/19/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 75 87 75 87 Temp 75 82 86 87 81 79 77 76 75 82 86 87 81 79 77 76 75 82 86 87 81 79 Dewpt 72 75 76 77 76 76 76 73 72 75 76 76 76 76 75 73 72 75 76 76 75 76 RH 90 79 72 72 85 91 97 90 90 79 72 70 85 91 94 90 90 79 72 70 82 91 Wind dir E E E NE E E SE E E E NE N E E E E E E E NE E E Wind spd 10 10 8 6 3 6 5 5 4 5 5 6 5 9 6 5 4 8 9 6 6 9 Clouds CL CL CL SC B2 SC CL CL CL FW CL SC B2 B1 B1 B1 B1 SC SC B2 B2 SC PoP 12hr 70 40 60 20 50 QPF 12hr 0.57 0.05 0.35 0.08 0.80 Rain shwrs C L C S SL S S S S C C S Tstms S S S S Heat index 88 96 98 88 88 96 97 88 88 96 97 87 Max heat 88 99 97 88 98 97 88 98 96 Date Tue 10/20/26 Wed 10/21/26 Thu 10/22/26 Fri 10/23/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 87 75 87 75 87 75 87 Temp 76 82 87 79 76 82 87 79 76 82 87 79 76 82 87 79 Dewpt 73 75 76 75 73 75 75 75 73 75 76 76 74 75 77 76 PWind dir E NE SE NE SE NE E E Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 CL CL SC B2 SC SC SC B1 FW FW SC B2 PoP 12hr 20 60 0 60 30 60 10 70 Rain shwrs S S L L L L C C L L S L L Tstms S S S S S S S S $$ PRZ010-172000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 232 AM AST Sat Oct 17 2026 Date Sat 10/17/26 Sun 10/18/26 Mon 10/19/26 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 91 73 92 73 92 Temp 73 83 90 91 82 78 76 74 73 84 90 92 83 79 76 74 73 84 90 92 83 79 Dewpt 72 75 77 77 77 75 75 74 73 76 77 77 77 75 75 74 73 75 77 77 76 75 RH 97 77 66 64 85 91 97100100 77 66 62 82 88 97100100 74 66 62 80 88 Wind dir E E SW NW N E E E E E E W NE E E E E E S W NE E Wind spd 4 3 2 5 2 4 5 5 4 2 2 3 1 3 3 3 3 4 2 4 3 1 Clouds CL CL CL SC B2 SC CL CL CL CL CL SC B2 B2 B2 B2 B2 SC SC B2 B2 SC PoP 12hr 70 20 60 10 60 QPF 12hr 0.59 0.05 0.51 0.12 1.01 Rain shwrs C L S C L S S S S L L C Tstms S S S S Heat index 90103104 90 92104105 91 91104105 91 Max heat 90 105 101 92 107 104 91 106 103 Date Tue 10/20/26 Wed 10/21/26 Thu 10/22/26 Fri 10/23/26 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 92 73 92 73 92 74 92 Temp 74 84 92 79 74 84 92 79 74 84 92 79 75 84 92 79 Dewpt 73 75 77 75 73 75 77 75 73 75 77 75 74 76 77 75 PWind dir E SE E SE E SE E SE Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B1 CL CL SC B1 FW SC SC SC FW FW SC B2 PoP 12hr 30 60 0 50 5 40 0 60 Rain shwrs C C L L C C S S C C L L Tstms S S S S $$ VIZ001-172000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 232 AM AST Sat Oct 17 2026 Date Sat 10/17/26 Sun 10/18/26 Mon 10/19/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 81 88 81 89 Temp 81 84 87 87 84 83 82 81 81 85 87 88 85 83 82 81 81 85 88 89 85 83 Dewpt 75 75 76 75 75 75 75 75 7575 75 75 75 75 75 75 75 75 75 75 75 75 RH 82 74 70 68 74 77 79 82 82 72 68 66 72 77 79 82 82 72 66 64 72 77 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 13 13 12 11 10 11 12 12 11 10 11 9 9 11 11 11 9 11 12 11 11 11 Clouds SC FW SC FW CL SC SC FW SC SC SC SC SC B1 B1 B1 B1 B1 B1 B2 B2 B1 PoP 12hr 30 50 50 40 50 QPF 12hr 0.07 0.18 0.09 0.11 0.26 Rain shwrs C S C S S S S C C C C C C C C C C C C C C Tstms S S Heat index 87 93 97 96 92 90 89 88 87 93 97 98 93 91 89 88 87 94 98 99 94 91 Max heat 93 98 97 90 93 99 98 90 94 99 98 Date Tue 10/20/26 Wed 10/21/26 Thu 10/22/26 Fri 10/23/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 88 81 88 81 88 81 90 Temp 82 85 88 83 81 85 88 83 81 85 88 83 81 86 90 84 Dewpt 75 75 75 75 75 75 75 75 75 76 76 76 76 76 76 76 PWind dir E SE SE SE SE SE SE SE Wind char GN GN GN GN GN GN GN GN Avg clouds B1 B1 B1 B1 SC B1 B1 B1 SC SC SC B2 SC B1 B1 B1 PoP 12hr 40 40 30 40 30 60 40 50 Rain shwrs C C C C C C C C C C L L C C C C Tstms S S $$ VIZ002-172000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 232 AM AST Sat Oct 17 2026 Date Sat 10/17/26 Sun 10/18/26 Mon 10/19/26 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 89 79 90 79 90 Temp 80 85 88 89 84 82 81 80 79 85 89 90 85 82 81 80 79 85 89 90 84 82 Dewpt 75 76 76 76 76 75 75 75 75 76 76 76 75 75 75 75 75 76 76 76 75 75 RH 85 75 68 66 77 79 82 85 88 75 66 64 72 79 82 85 88 75 66 64 74 79 Wind dir E E E E E E E E E E E SE E E E E E E E E E E Wind spd 11 12 12 11 10 10 10 9 9 10 11 10 9 9 10 9 8 11 12 11 10 9 Clouds SC SC SC SC FW SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 PoP 12hr 30 50 50 40 40 QPF 12hr 0.09 0.20 0.11 0.06 0.16 Rain shwrs C S C S S C C C C C C C C C C C C C C C C C Heat index 85 95 99100 93 89 86 84 95101102 93 89 87 84 95101101 92 88 Max heat 95 101 99 88 95 102 100 88 95 102 100 Date Tue 10/20/26 Wed 10/21/26 Thu 10/22/26 Fri 10/23/26 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 90 79 90 79 90 79 90 Temp 79 85 90 82 80 85 90 82 80 85 90 82 80 85 90 82 Dewpt 75 76 75 75 75 76 76 75 76 77 77 76 76 77 77 76 PWind dir E E E SE E SE E SE Wind char GN GN GN GN GN GN GN GN Avg clouds B1 B1 B1 B1 SC SC SC SC SC SC SC B1 SC SC B1 B1 PoP 12hr 40 40 30 30 20 40 30 50 Rain shwrs C C C C C C C C S S C C S C C C $$