Point Forecast Matrices
Issued by NWS Key West, FL
Issued by NWS Key West, FL
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001 FOUS52 KKEY 171956 PFMKEY Point Forecast Matrices National Weather Service Key West FL 355 PM EDT Thu Sep 17 2026 FLZ078-180800- Key West-Monroe FL 24.55N 81.75W Elev. 3 ft 355 PM EDT Thu Sep 17 2026 Date 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 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 81 91 79 90 79 Temp 89 84 83 82 82 83 87 89 88 84 82 81 81 81 86 88 88 83 82 81 80 81 Dewpt 77 77 77 77 76 77 77 76 76 75 76 76 75 76 76 75 75 75 75 75 75 75 RH 68 80 82 85 82 82 72 66 68 74 82 85 82 85 72 66 66 77 79 82 85 82 Wind dir E E E E E E E E E NE E E E E E E E E E SE S S Wind spd 10 12 11 10 8 6 6 6 4 4 4 5 4 5 5 4 4 5 5 6 6 5 Clouds SC B1 SC SC B1 B1 B1 B1 SC FW SC B1 B1 B1 B1 SC SC SC SC B1 B1 B1 PoP 12hr 70 70 70 70 70 QPF 12hr 0.32 0.29 0.13 0.15 0.18 Rain shwrs L 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 C Heat index 102 94 92 90 89 92 99100 99 92 89 87 87 87 96 98 98 90 89 87 85 87 Max heat 103 94 92 100 100 91 87 98 98 90 87 Date 09/20 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 81 91 81 90 80 90 Temp 88 85 82 82 88 85 82 83 88 85 82 83 88 84 82 82 88 84 Dewpt 75 74 75 75 75 75 76 76 76 75 76 76 76 76 76 76 77 76 PWind dir S S S S S SE SE SE SE Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC SC SC SC SC SC SC B1 SC SC B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 60 70 60 60 70 70 70 60 70 Rain shwrs 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 $$ FLZ077-180800- Marathon-Monroe FL 24.72N 81.04W Elev. 5 ft 355 PM EDT Thu Sep 17 2026 Date 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 89 80 88 80 Temp 87 85 84 84 83 83 86 87 87 84 83 83 82 82 85 86 86 84 83 82 81 82 Dewpt 76 77 76 76 76 76 76 76 75 75 75 75 75 75 75 76 74 75 75 75 75 75 RH 70 77 77 77 80 80 72 70 68 74 77 77 79 79 72 72 68 74 77 79 82 79 Wind dir E E E E E E E E E NE NE E E E E E SE E SE SE S S Wind spd 11 11 10 9 6 6 6 5 6 6 5 5 5 6 5 4 4 5 5 6 5 5 Clouds B1 B1 B1 SC B1 B1 B1 B1 B1 FW SC SC B1 SC SC B1 SC SC SC B1 B1 SC PoP 12hr 70 70 70 70 70 QPF 12hr 0.20 0.07 0.11 0.07 0.12 Rain shwrs L L L L L L L L L L L L L L L L L L L L L L Tstms C C C C C C C C C C C C C C C C C C C C C C Heat index 98 96 93 93 91 91 96 98 96 92 90 90 89 89 94 96 94 92 90 89 87 89 Max heat 99 94 93 98 98 92 90 96 95 92 89 Date 09/20 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 81 89 81 89 82 89 81 88 Temp 86 85 83 83 86 85 84 83 87 85 84 82 86 85 83 84 86 85 Dewpt 75 74 75 75 76 75 75 76 76 75 76 76 76 76 76 76 77 76 PWind dir S S S S S SE SE SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC SC SC SC B1 SC B1 SC B1 B1 B1 B1 B1 B2 B1 B1 B1 PoP 12hr 60 70 60 70 70 70 70 70 80 Rain shwrs L L L L L L L L L L L L L L L L D D Tstms C C C C C C C C C C C C C C C C C C $$