FOCA52 TJSJ 191832 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 232 PM AST Tue May 19 2026 PRZ001-200800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 232 PM AST Tue May 19 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 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 75 90 75 90 76 Temp 86 80 77 75 77 84 88 90 86 80 77 75 77 84 88 90 86 81 78 76 78 84 Dewpt 71 71 71 71 71 71 72 71 70 71 71 70 70 71 71 71 71 72 72 71 71 71 RH 61 74 82 87 82 65 59 54 59 74 82 84 79 65 57 54 61 74 82 85 79 65 Wind dir E E E E SE E E E E E E E E E E E E E E E E E Wind spd 14 12 11 9 9 12 17 18 14 12 11 9 12 11 14 17 14 11 11 10 10 11 Clouds B1 B1 B1 SC SC B1 B1 B1 B1 B1 B2 B1 B1 B1 B1 SC SC B1 B1 B1 B1 B2 PoP 12hr 40 50 50 40 50 QPF 12hr 0.12 0.26 0.09 0.08 0.13 Rain shwrs C C C S S C C C C C C C C C C S S C C C C C Heat index 91 84 89 95 96 91 84 89 94 96 92 85 89 Max heat 96 82 89 96 96 82 89 96 96 83 89 Date 05/22 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 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 89 76 90 76 90 Temp 90 81 76 84 90 81 76 84 89 80 76 84 90 81 76 84 90 81 Dewpt 71 72 72 72 72 71 71 71 71 72 71 71 72 72 72 72 72 72 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN BZ GN GN Avg clouds B2 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 PoP 12hr 50 20 50 40 50 40 50 50 60 Rain shwrs C C S S C C C C C C C C C C C C L L Tstms S S $$ PRZ002-200800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 232 PM AST Tue May 19 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 77 86 76 87 77 Temp 84 80 79 77 78 82 85 86 83 79 78 76 77 82 86 87 84 80 79 77 78 83 Dewpt 73 73 73 72 72 73 73 73 73 72 72 72 72 73 73 73 73 73 73 72 72 73 RH 70 79 82 85 82 74 67 65 72 79 82 87 85 74 65 63 70 79 82 85 82 72 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 14 14 14 13 13 17 17 14 13 13 12 13 14 12 14 14 14 13 13 12 12 14 Clouds B1 B1 B1 B1 B1 B1 B1 B2 B2 B1 B2 B1 B1 B1 B1 SC SC B2 B2 B2 B2 B2 PoP 12hr 50 50 50 50 50 QPF 12hr 0.16 0.27 0.11 0.16 0.18 Rain shwrs C C C C C C C C C C C C C C C C C C C C C C Heat index 91 85 88 92 93 89 83 88 93 94 91 85 89 Max heat 94 84 88 93 93 88 94 94 84 89 Date 05/22 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 0006 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 77 87 77 87 77 87 77 87 Temp 87 80 77 83 87 80 77 83 87 80 77 83 87 80 77 83 87 80 Dewpt 74 73 73 73 74 73 72 73 73 73 73 73 74 74 73 74 73 72 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN BZ GN GN Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 B2 B2 B2 B2 B2 PoP 12hr 50 40 50 40 50 50 50 60 60 Rain shwrs C C C C C C C C C C C C C C C L L L Tstms S S S $$ PRZ007-200800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 232 PM AST Tue May 19 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 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 75 88 74 88 75 Temp 85 80 77 75 77 83 87 88 84 79 76 74 76 82 86 88 84 79 77 75 77 83 Dewpt 68 68 69 69 68 69 69 69 70 69 68 66 65 67 67 67 68 69 69 69 67 67 RH 57 67 76 82 74 63 55 54 63 72 76 76 69 61 53 50 59 72 76 82 71 59 Wind dir E E NE NE NE E E SE E E NE NE E E E SE E E E E E E Wind spd 14 9 6 6 5 9 16 18 16 10 6 8 9 10 13 13 13 9 5 6 6 9 Wind gust 25 26 31 27 Clouds SC SC FW FW FW FW SC SC SC SC FW SC SC B1 B1 SC SC SC SC SC SC SC PoP 12hr 10 20 40 40 30 QPF 12hr 0.01 0.04 0.06 0.09 0.05 Rain shwrs S S S S S S S S S S C C S S S S S S C Heat index 88 82 86 91 92 88 85 89 91 88 82 86 Max heat 93 86 92 92 85 91 90 86 Date 05/22 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 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 75 89 75 89 75 89 75 89 Temp 89 80 75 83 89 80 75 83 89 80 75 83 89 80 75 83 89 80 Dewpt 71 70 69 69 68 69 69 69 70 69 68 67 70 69 69 69 71 72 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 SC SC SC SC SC SC B1 SC SC B1 B1 PoP 12hr 30 20 20 20 40 10 40 30 40 Rain shwrs C C S S S S S S C C S S C C S C C C $$ PRZ008-200800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 232 PM AST Tue May 19 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 86 73 86 74 Temp 83 78 76 74 75 81 85 86 82 77 75 73 75 81 85 86 83 78 76 74 75 81 Dewpt 75 74 72 71 69 72 73 75 75 74 72 70 68 71 73 75 75 74 73 71 71 72 RH 77 88 87 90 82 74 67 70 79 90 90 90 79 72 67 70 77 88 90 90 87 74 Wind dir E E E E E E E E E E E E E E E NE E E E E E E Wind spd 20 17 16 12 12 12 13 20 18 17 13 12 10 10 10 12 16 10 12 12 10 11 Clouds B2 B1 B1 SC FW CL FW B2 B2 B1 B1 CL CL SC SC B2 B2 B1 B1 B1 B1 SC PoP12hr 40 60 40 60 40 QPF 12hr 0.06 0.48 0.04 0.61 0.04 Rain shwrs L C C S L L C C S S L L C C S S S Tstms S S S S S Heat index 90 85 91 95 89 84 91 95 90 85 Max heat 94 85 95 94 84 95 94 85 Date 05/22 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 74 86 74 86 74 86 74 86 Temp 86 78 74 81 86 78 74 81 86 78 74 81 86 78 74 81 86 78 Dewpt 75 74 71 73 75 74 71 72 74 74 71 72 75 74 72 73 73 72 PWind dir E E E E E E E E E Wind char GN GN BZ GN BZ BZ BZ BZ BZ Avg clouds SC B2 SC SC FW SC SC SC SC B1 SC FW SC B1 B1 SC SC B1 PoP 12hr 60 30 30 20 50 10 50 40 40 Rain shwrs L L C C C C S S C C S S C C C C C C Tstms S S $$ PRZ010-200800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 232 PM AST Tue May 19 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 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 72 91 72 91 72 Temp 86 78 75 73 74 83 89 91 86 78 75 73 74 83 89 91 86 78 75 73 74 83 Dewpt 75 74 72 70 70 72 74 75 75 74 72 70 69 72 73 75 75 74 73 71 71 72 RH 70 88 90 90 87 70 61 60 70 88 90 90 84 70 59 60 70 88 94 93 90 70 Wind dir E NE E E E E E N NE E E E E E E N NE SE E E E E Wind spd 2 5 6 4 4 5 3 8 5 2 6 5 4 4 3 8 5 6 8 5 4 3 Clouds B2 SC SC CL CL CL CL B2 B2 SC SC CL CL SC SC B2 B2 SC SC SC SC FW PoP 12hr 30 70 30 70 30 QPF 12hr 0.04 0.72 0.04 0.88 0.02 Rain shwrs L C S C L C S S S L L C C Tstms S S S S S Heat index 95 89 98102 95 89 97102 95 89 Max heat 100 89 102 101 89 102 101 89 Date 05/22 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 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 72 91 72 91 72 91 72 91 Temp 91 78 73 83 91 78 73 83 91 78 73 83 91 78 73 83 91 78 Dewpt 76 74 71 73 76 74 71 72 75 74 71 72 75 74 71 73 71 71 PWind dir E E E E E E E E E Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC B2 B2 SC SC B1 SC SC SC B1 SC SC SC B1 SC SC SC B2 PoP 12hr 60 50 60 20 50 20 60 20 60 Rain shwrs L L C C L L S S C C S S L L S S L L Tstms S S S S S S S S $$ VIZ001-200800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 232 PM AST Tue May 19 2026 Date 05/19/26 Wed 05/20/26Thu 05/21/26 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 79 87 79 87 79 Temp 85 82 80 79 80 84 86 87 85 82 80 79 80 84 86 87 85 82 80 79 80 84 Dewpt 73 73 73 73 73 73 73 73 72 71 72 72 72 73 73 73 73 73 73 73 73 73 RH 67 74 79 82 79 70 65 63 65 69 77 79 77 70 65 63 67 74 79 82 79 70 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 20 20 21 21 21 21 20 18 20 19 18 23 19 18 18 17 18 18 20 19 20 20 Clouds SC B1 SC SC FW SC SC B1 B1 CL SC SC SC B1 B1 B1 B1 SC SC SC SC SC PoP 12hr 30 40 40 40 30 QPF 12hr 0.06 0.15 0.05 0.12 0.09 Rain shwrs S C S S S C C C S S S C C C C C C C C C Heat index 92 87 85 83 84 90 93 94 91 86 84 83 84 90 93 94 91 87 85 83 84 91 Max heat 95 87 90 94 93 85 90 94 94 86 91 Date 05/22 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 79 88 79 88 80 88 79 88 Temp 88 82 79 84 88 82 79 84 88 83 80 85 88 82 79 84 88 82 Dewpt 73 74 73 73 73 73 73 73 73 74 73 73 74 74 75 74 71 72 PWind dir E E E E E E E E E Wind char BZ BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds SC SC SC SC SC B1 SC SC SC SC SC B1 B2 B1 B1 B1 B1 B2 PoP 12hr 30 20 50 30 30 50 50 40 60 Rain shwrs C S S S C C C C C C C C C C C C L L Tstms S S $$ VIZ002-200800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 232 PM AST Tue May 19 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 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 75 88 76 88 76 Temp 84 79 77 75 77 83 87 88 85 80 78 76 77 83 87 88 85 80 78 76 77 83 Dewpt 73 73 73 72 72 73 73 73 73 72 72 72 72 73 73 73 73 73 73 72 72 73 RH 70 82 87 90 85 72 63 61 67 77 82 87 85 72 63 61 67 79 85 87 85 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 19 19 19 18 18 18 19 18 17 16 17 18 14 17 17 17 17 17 17 16 16 17 Clouds SC SC SC SC SC SC SC B1 B1 FW SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 40 20 30 40 QPF 12hr 0.08 0.13 0.03 0.06 0.07 Rain shwrs S S S C S S S C C S S S S S C C S S C C S Heat index 91 83 88 94 96 91 84 89 94 96 91 84 89 Max heat 95 88 96 95 82 89 96 95 83 89 Date 05/22 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 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 76 88 76 88 76 88 Temp 88 80 76 83 88 80 76 83 88 80 76 83 88 80 76 83 88 80 Dewpt 73 73 73 73 73 73 72 73 74 73 72 73 74 74 73 74 72 72 PWind dir E EE E E E E E E Wind char BZ BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds SC SC SC SC SC SC SC B1 B1 SC SC B1 B1 B1 B1 B1 B2 B2 PoP 12hr 30 30 30 40 40 40 40 60 60 Rain shwrs S C C C C C C C C C C C C C C L L L Tstms S S S $$