FOUS52 KKEY 210800 PFMKEY Point Forecast Matrices National Weather Service Key West FL 400 AM EDT Sun Jun 21 2026 FLZ078-212000- Key West-Monroe FL 24.55N 81.75W Elev. 3 ft 400 AM EDT Sun Jun 21 2026 Date Sun 06/21/26 Mon 06/22/26 Tue 06/23/26 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 84 91 84 91 Temp 83 84 88 89 90 87 85 84 84 85 89 90 90 87 85 84 84 85 88 90 90 86 Dewpt 75 76 76 75 75 75 75 75 76 77 77 76 76 76 77 77 77 77 77 76 76 75 RH 77 77 68 64 62 68 72 74 77 77 68 64 64 70 77 80 80 77 70 64 64 70 Wind dir SE SE SE SE N N NE NE E SE SE SE E E E E SE SE SE SE E E Wind spd 6 6 5 4 1 5 8 6 8 9 6 5 4 6 9 9 10 9 8 6 5 5 Clouds SC SC FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 10 10 5 10 10 QPF 12hr 0 0 0 0 0 Rain shwrs S S S S S S S S Tstms S S S S S S S S Heat index 90 93 99 99101 96 94 92 93 96102102102 98 96 94 94 96100102102 95 Max heat 93 100 102 95 96 103 105 97 96 102 103 Date Wed 06/24/26 Thu 06/25/26 Fri 06/26/26 Sat 06/27/26 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 90 82 91 83 92 83 92 Temp 84 84 90 87 84 84 90 87 84 85 90 88 84 85 90 88 Dewpt 75 76 76 75 75 76 76 76 77 77 77 77 77 78 77 77 PWind dir E E E SE E SE E E Wind char LT LT LT GN GN GN GN LT Avg clouds SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW PoP 12hr 5 5 10 5 5 5 0 5 Rain shwrs S S $$ FLZ077-212000- Marathon-Monroe FL 24.72N 81.04W Elev. 5 ft 400 AM EDT Sun Jun 21 2026 Date Sun 06/21/26 Mon 06/22/26 Tue 06/23/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 83 90 84 90 Temp 84 84 86 87 89 87 85 85 84 85 87 88 88 86 85 85 85 84 87 88 88 86 Dewpt 75 76 76 75 75 75 75 76 76 77 77 77 77 77 77 78 77 77 77 76 76 75 RH 74 77 72 68 64 68 72 75 77 77 72 70 70 75 77 80 77 80 72 68 68 70 Wind dir SE SE SE S S N NE E E SE SE SE E E E E SE SE SE SE E E Wind spd 5 6 6 4 2 4 6 8 6 9 9 6 5 6 8 9 10 9 6 6 5 5 Clouds SC SC FW FW FW FW SC SC SC SC SC SC FW SC SC SC SC SC SC FW SC SC PoP 12hr 10 20 10 10 10 QPF 12hr 0 0 0 0 0 Rain shwrs S S S S S S S S S S S S S Tstms S S S S S S S S S S S S S Heat index 92 93 96 96 99 96 94 94 93 96 99100100 97 96 97 96 94 99 99 99 95 Max heat 93 98 99 95 96 100 102 97 97 100 99 Date Wed 06/24/26 Thu 06/25/26 Fri 06/26/26 Sat 06/27/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 83 89 83 88 83 89 83 89 Temp 84 85 87 86 84 85 87 86 85 85 88 87 85 85 88 87 Dewpt 76 76 76 75 76 76 76 76 77 77 77 77 78 78 78 77 PWind dir E E E SE E E E E Wind char LT LT LT GN GN GN LT LT Avg clouds SC SC FW FW SC FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 5 5 10 5 5 10 5 10 Rain shwrs S S $$