Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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401 FOCA52 TJSJ 040632 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 232 AM AST Sun Oct 4 2026 PRZ001-042000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 232 AM AST Sun Oct 4 2026 Date Sun 10/04/26 Mon 10/05/26 Tue 10/06/26 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 78 92 79 92 Temp 79 86 90 91 85 82 80 79 78 86 91 92 86 83 81 80 79 86 91 92 86 83 Dewpt 74 74 74 74 74 74 75 75 74 75 75 75 75 75 76 75 75 75 75 75 74 75 RH 85 68 60 58 70 77 85 88 88 70 60 58 70 77 85 85 88 70 60 58 68 77 Wind dir SE E E E E E E SE SE E E E E E E E E E E E E E Wind spd 4 4 10 14 13 9 8 5 4 4 11 14 11 8 6 6 5 5 10 14 12 8 Clouds B2 B2 SC B1 B2 B2 B2 B2 SC SC B1 SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 60 60 40 20 30 QPF 12hr 0.34 0.35 0.14 0.07 0.18 Rain shwrs C C S C C L L C S S C S S S S S S S S C C C Tstms S S S Heat index 94 99101 93 88 85 95102103 95 90 87 85 95102103 94 90 Max heat 94 102 101 87 95 103 102 89 95 103 102 Heat Y Y Date Wed 10/07/26 Thu 10/08/26 Fri 10/09/26 Sat 10/10/26 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 91 79 91 78 91 Temp 80 85 89 81 79 85 91 83 80 86 91 82 79 85 91 82 Dewpt 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 74 PWind dir E E SE E E E E E Wind char LT GN GN GN LT GN LT GN Avg clouds SC SC SC B1 B1 B1 B2 B2 SC SC SC SC SC SC SC FW PoP 12hr 30 50 50 60 30 20 20 20 Rain shwrs C S C C C C L L C C S S S S S S Tstms S S S S S $$ PRZ002-042000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 232 AM AST Sun Oct 4 2026 Date Sun 10/04/26 Mon 10/05/26 Tue 10/06/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 78 91 78 91 Temp 78 85 89 90 84 82 80 79 78 85 90 91 85 82 80 79 78 85 90 91 84 81 Dewpt 74 75 75 74 75 75 75 75 75 76 76 76 76 76 76 75 75 76 76 75 76 75 RH 88 72 64 60 74 79 85 88 91 75 64 62 75 82 88 88 91 75 64 60 77 82 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 6 5 10 10 9 9 10 9 5 6 10 10 10 9 9 8 8 8 8 9 8 9 Clouds B2 B1 SC B2 B2 B2 B2 B2 SC B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 SC PoP 12hr 60 60 40 40 40 QPF 12hr 0.38 0.35 0.17 0.16 0.26 Rain shwrs C C S C L L L C C C C S S C C S S C C C C C Tstms S S S S Heat index 94 99 99 92 89 85 94102103 94 89 86 94102102 93 87 Max heat 94 101 99 87 94 103 102 87 94 103 101 Heat Y Y Date Wed 10/07/26 Thu 10/08/26 Fri 10/09/26 Sat 10/10/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 89 77 90 78 91 77 90 Temp 78 84 89 81 78 84 90 82 79 85 91 81 78 84 90 81 Dewpt 75 76 75 75 75 76 75 75 75 76 75 75 75 75 75 75 PWind dir E E E E E E E E Wind char LT GN GN GN GN GN GN GN Avg clouds SC SC B1 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC SC SC PoP 12hr 30 60 60 60 40 30 30 30 Rain shwrs C C C L L L L L C C C C C C C S Tstms S S S S S S $$ PRZ007-042000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 232 AM AST Sun Oct 4 2026 Date Sun 10/04/26 Mon 10/05/26 Tue 10/06/26 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 91 75 91 Temp 76 84 89 90 83 80 78 77 76 84 90 91 83 80 78 76 75 84 90 91 84 81 Dewpt 72 74 76 77 76 75 74 73 72 75 77 77 77 76 75 74 73 75 77 77 77 76 RH 87 72 66 66 80 85 88 87 87 74 66 64 82 88 91 94 94 74 66 64 80 85 Wind dir NE E SE SE E NE NE NE NE E SE SE SE E NE NE NE NE E SE E E Wind spd 3 3 12 11 8 5 4 4 4 5 10 11 8 6 4 4 5 4 10 10 6 4 Clouds FW CL CL SC B1 SC SC SC SC FW SC SC SC CL CL CL CL CL CL SC SC FW PoP 12hr 40 30 30 0 20 QPF 12hr 0.18 0.10 0.12 0.01 0.16 Rain shwrs S C C S S S S S C S S Heat index 91100103 91 85 92103105 92 86 92103105 94 87 Max heat 91 103 102 85 92 105 103 92 105 103 Heat Y Y Date Wed 10/07/26 Thu 10/08/26 Fri 10/09/26 Sat 10/10/26 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 90 76 91 75 91 Temp 77 83 88 80 77 84 90 80 77 84 91 80 76 84 91 81 Dewpt 73 74 78 76 74 75 77 76 74 75 77 75 73 75 77 75 PWind dir NE E E E E E NE E Wind char LT GN LT GN LT GN LT GN Avg clouds FW SC SC B1 SC SC SC SC SC SC SC SC SC FW FW SC PoP 12hr 20 40 30 30 10 20 5 30 Rain shwrs S C C C C C C S S S S S S C C $$ PRZ008-042000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 232 AM AST Sun Oct 4 2026 Date Sun 10/04/26 Mon 10/05/26 Tue 10/06/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 74 88 75 88 Temp 75 82 86 87 81 78 76 75 74 82 87 88 82 79 77 76 75 82 87 88 82 79 Dewpt 73 75 76 76 75 75 75 74 73 75 77 77 76 77 76 74 73 76 77 77 76 76 RH 94 79 72 70 82 91 97 97 97 79 72 70 82 94 97 94 94 82 72 70 82 91 Wind dir E E E NE E E E E E E NE NE E E E E E E E NE E E Wind spd 6 9 9 9 9 11 8 3 4 5 5 6 4 9 6 4 6 6 3 6 8 9 Clouds SC SC CL B1 B2 OV B1 SC SC FW FW B1 B2 SC SC CL CL CL CL B2 B2 SC PoP 12hr 80 80 50 20 60 QPF 12hr 0.79 0.69 0.51 0.04 0.69 Rain shwrs S S C L D C S S C C S S L L C Tstms S S S S S Heat index 89 96 98 87 89 99100 89 89 99100 89 Max heat 89 99 97 89 100 100 89 100 99 Heat Y Y Date Wed 10/07/26 Thu 10/08/26 Fri 10/09/26 Sat 10/10/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 87 75 87 74 88 74 88 Temp 76 82 87 79 76 82 87 78 75 82 88 78 75 82 88 79 Dewpt 74 76 77 76 74 76 77 77 74 76 77 76 74 76 77 76 PWind dir E E E E E E E E Wind char GN GN GN LT GN GN GN GN Avg clouds SC FW SC B2 SC SC B1 B2 SC SC SC SC CL CL SC SC PoP 12hr 30 70 20 70 20 50 0 50 Rain shwrs C S L L S S L L S S C C C C Tstms S S S S S S S S $$ PRZ010-042000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 232 AM AST Sun Oct 4 2026 Date Sun 10/04/26 Mon 10/05/26 Tue 10/06/26 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 93 73 94 73 94 Temp 74 85 91 93 83 79 76 74 73 85 92 94 84 79 77 74 73 85 92 94 84 79 Dewpt 73 76 77 77 77 75 75 74 73 76 78 78 77 76 76 75 73 76 78 78 77 76 RH 97 75 64 60 82 88 97100100 75 64 60 80 91 97103100 75 64 60 80 91 Wind dir NE NE E W NE NE E E E NE SE W E E E E E E NE NE NE E Wind spd 1 3 2 4 1 4 5 4 4 4 2 5 3 2 4 5 4 2 2 4 3 5 Clouds FW CL CL B2 OV OV SC SC SC CL FW B2 OV SC SC CL CL CL CL OV OV SC PoP 12hr 90 90 70 10 70 QPF 12hr 1.14 0.71 1.16 0.02 1.11 Rain shwrs L D D S S S L L S S L L S Tstms S S S S S S S Heat index 94105107 92 94107110 94 94107110 94 Max heat 94 109 105 94 112 107 94 110 107 Heat Y Y Date Wed 10/07/26 Thu 10/08/26 Fri 10/09/26 Sat 10/10/26 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 90 73 93 72 94 73 94 Temp 74 83 90 78 74 84 93 78 73 84 94 79 74 85 94 79 Dewpt 74 76 78 76 75 77 79 76 74 76 78 76 74 76 78 76 PWind dir E S E SE E E E E Wind char LT LT LT GN LT LT LT LT Avg clouds SC FW SC B2 SC SC B1 B2 SC FW SC B1 CL CL SC B1 PoP 12hr 20 70 20 70 10 60 0 60 Rain shwrs S S L L S S L L S S L L L L Tstms S S S S S S S S $$ VIZ001-042000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 232 AM AST Sun Oct 4 2026 Date Sun 10/04/26 Mon 10/05/26 Tue 10/06/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 80 91 80 89 Temp 79 85 88 89 85 83 82 81 80 86 90 91 86 83 82 81 80 85 88 89 84 82 Dewpt 75 75 75 74 75 75 76 76 76 76 76 76 76 77 77 77 76 76 76 75 76 76 RH 88 72 66 61 72 77 82 85 88 72 64 62 72 82 85 88 88 75 68 64 77 82 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 11 12 12 13 13 13 14 13 10 13 11 12 12 13 14 16 12 12 12 11 11 12 Clouds B1 B1 B2 B1 B1 B2 SC SC B2 SC SC FW SC SC SC B1 B1 SC SC SC SC SC PoP 12hr 50 50 30 40 30 QPF 12hr 0.17 0.14 0.10 0.17 0.19 Rain shwrs C C C C C C S S C C C S S S S C C C C S S C Tstms S Heat index 94 98 98 94 90 89 87 86 96102103 96 92 90 88 86 94 99 99 93 89 Max heat 94 99 99 89 96 105 103 92 94 100 98 Heat Y Y Date Wed 10/07/26 Thu 10/08/26 Fri 10/09/26 Sat 10/10/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 89 79 91 79 91 79 88 Temp 80 85 89 82 80 86 91 83 80 86 91 83 80 84 88 82 Dewpt 76 76 75 76 76 76 75 76 76 76 75 76 76 76 75 75 PWind dir E E E E E E E E Wind char GN BZ BZ BZ BZ BZ GN BZ Avg clouds SC B1 B1 B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC PoP 12hr 40 60 60 60 30 30 20 20 Rain shwrs C C C L L L L C C C C C S S S S Tstms S S S S S $$ VIZ002-042000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 232 AM AST Sun Oct 4 2026 Date Sun 10/04/26 Mon 10/05/26 Tue 10/06/26 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 78 91 77 91 Temp 77 85 90 91 85 82 80 79 78 85 90 91 84 81 79 78 77 85 90 91 84 81 Dewpt 74 75 76 76 75 76 76 76 76 77 77 77 77 77 77 76 76 76 77 77 76 76 RH 90 72 64 62 72 82 88 91 94 77 66 64 80 88 94 94 97 75 66 64 77 85 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 10 10 12 11 11 12 12 11 10 10 11 12 12 12 12 11 11 11 12 11 10 11 Clouds SC SC B2 SC B1 B2 SC SC B2 SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 50 30 30 30 QPF 12hr 0.16 0.13 0.16 0.16 0.20 Rain shwrs C C C C C C S S C C C C C S S C C C C C C C Tstms S Heat index 94102103 94 89 86 96103105 94 88 94103105 93 87 Max heat 94 103 102 87 96 105 103 88 94 105 103 Heat Y Y Date Wed 10/07/26 Thu 10/08/26 Fri 10/09/26 Sat 10/10/26 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 78 91 77 91 77 91 Temp 78 84 90 82 79 85 91 81 78 85 91 81 78 85 91 81 Dewpt 76 76 77 76 76 76 77 76 76 76 76 76 75 76 76 75 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN BZ Avg clouds SC B1 B1 B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC PoP 12hr 40 60 60 60 20 20 20 20 Rain shwrs C C C L L L L C S S S S S S S S Tstms S S S S S $$