FOUS52 KKEY 221959 PFMKEY Point Forecast Matrices National Weather Service Key West FL 358 PM EDT Sat Aug 22 2026 FLZ078-230800- Key West-Monroe FL 24.55N 81.75W Elev. 3 ft 358 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 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 82 92 83 92 82 Temp 90 87 85 84 83 84 88 90 90 86 85 84 84 85 88 90 90 86 85 84 84 84 Dewpt 76 75 75 75 75 75 75 76 76 75 75 75 75 76 75 76 77 76 76 76 76 76 RH 64 68 72 74 77 74 66 64 64 70 72 74 74 75 66 64 66 72 75 77 77 77 Wind dir SE E E SE SE SE SE SE E E E SE E E E E E E E E E E Wind spd 3 2 4 5 4 5 4 4 5 6 8 10 10 9 10 10 10 10 10 10 10 10 Clouds FW SC SC SC SC SC SC SC B1 B1 FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 10 10 10 10 20 QPF 12hr 0.02 0 0 0 0 Rain shwrs S S S S S S S S S Tstms S S S S S S S S S Heat index 102 96 94 92 90 92 98102102 95 94 92 92 94 98102103 96 94 93 93 93 Max heat 103 95 92 102 103 95 94 102 103 96 93 Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 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 92 83 92 83 92 83 92 83 93 Temp 90 87 84 85 90 87 84 85 89 87 84 85 90 88 84 85 89 88 Dewpt 77 77 77 77 78 77 77 77 78 77 77 77 78 78 78 78 78 78 PWind dir E E SE E SE E SE E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 50 10 30 20 30 20 40 30 Rain shwrs S S C C S S C C S S C C S S C C C C Tstms S S C C C C S S C C S S C C C C $$ FLZ077-230800- Marathon-Monroe FL 24.72N 81.04W Elev. 5 ft 358 PM EDT Sat Aug 22 2026 Date 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 82 90 82 90 82 Temp 89 87 86 85 84 85 87 88 88 86 86 85 84 85 88 88 88 87 86 85 84 85 Dewpt 75 75 75 76 76 75 76 76 75 75 76 76 76 75 76 76 76 76 76 77 76 76 RH 64 68 70 75 77 72 70 68 66 70 72 75 77 72 68 68 68 70 72 77 77 75 Wind dir SE SE SE SE SE SE SE SE SE E SE SE E E E E E E E E E E Wind spd 4 4 5 6 5 6 5 4 5 8 10 11 10 9 9 10 10 10 10 9 9 9 Clouds FW SC SC SC SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 20 20 20 10 30 QPF 12hr 0 0 0 0 0 Rain shwrs S S S S S S S S S S S S S C C C C S Tstms S S S S S S S S S S S S S C C C C S Heat index 99 96 95 94 93 94 98 99 98 95 96 94 93 94 99 99 99 98 96 96 93 94 Max heat 101 95 94 99 99 96 94 99 99 98 96 Date 08/25 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 83 90 84 90 83 91 83 91 Temp 88 87 85 85 88 88 86 84 88 87 85 85 89 88 86 84 89 88 Dewpt 77 77 78 77 78 77 78 77 78 77 78 77 78 77 78 77 78 77 PWind dir E E SE E SE E SE E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds FW SC SC SC SC B1 SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 60 10 40 20 30 20 40 30 Rain shwrs S S L L S S C C S S C C S S C C C C Tstms S S L L C C S S C C S S C C C C $$