Point Forecast Matrices
Issued by NWS Key West, FL
Issued by NWS Key West, FL
164 FOUS52 KKEY 202138 PFMKEY Point Forecast Matrices National Weather Service Key West FL 538 PM EDT Sun Sep 20 2026 FLZ078-210800- Key West-Monroe FL 24.55N 81.75W Elev. 3 ft 538 PM EDT Sun Sep 20 2026 Date 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed EDT 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 78 90 79 90 80 Temp 82 81 80 80 81 86 87 87 83 82 81 81 82 87 88 87 83 82 81 80 82 Dewpt 74 75 75 75 75 75 76 75 75 75 76 76 76 76 76 75 75 76 76 76 76 RH 77 82 85 85 82 70 70 68 77 79 85 85 82 70 68 68 77 82 85 88 82 Wind dir S S S S S SW SW SW S S S S S S S SE SE SE S S S Wind spd 1 4 9 9 8 8 8 8 8 10 13 11 10 8 8 6 8 11 12 11 10 Clouds B1 B1 B1 B1 SC SC SC SC SC B1 B1 B1 B1 SC SC B1 B1 B2 B2 B2 B2 PoP 12hr 50 50 70 70 70 QPF 12hr 0.19 0.24 0.28 0.39 0.36 Rain shwrs C C C C C C C C L L L L L L L L L L L L L Tstms C C C C C C C C C C C C C C C C C C C C C Heat index 88 87 85 85 87 95 98 96 90 89 87 87 89 98 99 96 90 89 87 86 89 Max heat 95 87 87 98 98 89 89 99 99 90 89 Date 09/23 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 EDT 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 80 90 80 90 79 90 80 89 Temp 87 85 81 82 87 84 82 82 88 85 82 82 88 84 81 82 87 83 Dewpt 77 76 76 76 76 76 76 76 76 75 76 76 76 75 75 75 75 74 PWind dir S SE SE SE NE E NE N N Wind char GN LT LT LT LT LT LT LT LT Avg clouds B2 B1 B2 B2 B1 B1 B1 B1 B1 SC SC SC SC SC B1 B1 SC SC PoP 12hr 70 70 50 40 40 50 60 50 70 Rain shwrs L L L L C C C C C C C C L L C C L L Tstms C C C C C C C C C C C C C C C C C C $$ FLZ077-210800- Marathon-Monroe FL 24.72N 81.04W Elev. 5 ft 538 PM EDT Sun Sep 20 2026 Date 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 88 80 89 80 Temp 83 82 82 82 82 85 85 86 84 83 82 82 84 86 87 87 84 83 82 81 83 Dewpt 74 74 75 75 75 75 75 74 75 75 75 75 76 76 76 75 75 75 76 76 76 RH 74 77 79 79 79 72 72 68 74 77 79 79 77 72 70 68 74 77 82 85 80 Wind dir W S S S S SW SW SW S S S S S S S SE SE SE S S S Wind spd 1 4 8 9 9 9 9 6 8 9 12 11 9 8 6 8 10 12 12 11 9 Clouds B1 B1 B1 B1 SC SC B1 SC SC B1 B1 B1 B1 SC B1 B1 B1 B2 B2 B2 B2 PoP 12hr 60 60 70 70 70 QPF 12hr 0.14 0.53 0.27 0.32 0.33 Rain shwrs L L L L L L L L L L L L L L L L L L L L L Tstms C C C C C C C C C C C C C C C C C C C C C Heat index 90 88 89 89 89 94 94 94 92 90 89 89 93 96 98 96 92 90 89 87 91 Max heat 93 89 89 94 95 90 93 98 98 92 91 Date 09/23 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 80 88 80 89 81 88 80 88 Temp 86 84 82 82 86 85 83 82 86 85 83 82 86 85 82 81 85 84 Dewpt 76 76 76 76 76 76 76 76 76 75 75 76 75 75 75 75 75 74 PWind dir S SE SE E NE NE NE N NW Wind char GN LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 B1 B1 B1 SC SC SC SC SC SC SC B1 B1 SC B1 PoP 12hr 70 70 60 40 50 50 60 50 70 Rain shwrs L L L L L L C C C C C C L L C C L L Tstms C C C C C C C C C C C C C C C C C C $$