FOUS52 KKEY 230801 PFMKEY Point Forecast Matrices National Weather Service Key West FL 401 AM EDT Sun Aug 23 2026 FLZ078-232000- Key West-Monroe FL 24.55N 81.75W Elev. 3 ft 401 AM EDT Sun Aug 23 2026 Date Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 EDT 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 84 91 84 91 Temp 83 84 88 89 90 87 86 85 85 86 89 90 91 88 87 85 85 86 89 90 91 88 Dewpt 75 76 76 76 76 75 75 75 75 75 76 76 76 75 75 76 76 76 77 77 78 77 RH 77 77 68 66 64 68 70 72 72 70 66 64 62 66 68 75 75 72 68 66 66 70 Wind dir SE SE SE SE E E E SE SE E E E E E E E E E E E E E Wind spd 8 6 4 3 3 4 6 9 9 9 10 11 11 12 12 13 12 12 11 11 12 12 Clouds SC SC FW FW SC SC SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW SC PoP 12hr 5 10 10 10 30 QPF 12hr 0 0 0 0 0 Rain shwrs S S S S S S S S S S S S S C C C C C Tstms S S S S S S S S S S S S S S S S S C Heat index 90 93 99100102 96 95 94 94 95100102103 98 96 94 94 96102103106100 Max heat 93 100 102 95 95 102 103 98 96 103 106 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 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 83 91 83 92 83 92 83 92 Temp 84 85 90 87 84 84 89 87 84 85 90 87 84 85 90 87 Dewpt 77 77 77 76 76 76 77 76 76 76 77 76 76 77 77 76 PWind dir SE SE E SE E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 50 50 20 30 30 50 40 Rain shwrs C C C C C C S S C C C C C C C C Tstms C C C C C C S S C C C C C C C C $$ FLZ077-232000- Marathon-Monroe FL 24.72N 81.04W Elev. 5 ft 401 AM EDT Sun Aug 23 2026 Date Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 83 91 82 91 Temp 84 84 90 91 91 88 86 84 84 84 90 91 91 87 85 83 83 83 90 91 91 87 Dewpt 76 76 76 76 75 75 75 76 76 75 76 76 75 75 76 76 76 76 77 77 77 77 RH 77 77 64 62 60 66 70 77 77 74 64 62 60 68 75 80 80 80 66 64 64 72 Wind dir SE SE SE SE SE E SE SE SE SE E E E E E E E E E E E E Wind spd 9 6 5 5 4 5 8 11 10 9 10 11 12 12 13 12 12 11 12 12 13 14 Clouds SC SC SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 10 10 10 20 30 QPF 12hr 0 0 0 0 0 Rain shwrs S S S S S S S S S S S S S S S S S C C C C C Tstms S S S S S S S S S S S S S S S S S S S S S C Heat index 93 93102103102 98 95 93 93 92102103102 96 94 91 91 91103105105 99 Max heat 93 103 103 96 93 103 103 96 91 105 105 Date Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 82 91 82 90 83 90 83 90 Temp 83 83 91 87 85 84 88 87 85 85 88 87 86 84 88 87 Dewpt 77 77 77 76 77 76 76 76 76 76 77 76 77 77 77 76 PWind dir SE SE E SE E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 50 50 20 30 30 40 50 Rain shwrs C C C C C C S S C C C C C C C C Tstms C C C C C C S S C C C C C C C C $$