Point Forecast Matrices
Issued by NWS Key West, FL

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Point Forecast Matrices
National Weather Service Key West FL
406 PM EDT Sun Aug 31 2025

FLZ078-010800-
Key West-Monroe FL
24.55N  81.75W Elev. 3 ft
406 PM EDT Sun Aug 31 2025

Date           08/31/25      Mon 09/01/25            Tue 09/02/25            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                      81          91          81          92          80
Temp          89 85 83 83 83 83 88 89 89 84 84 83 82 83 88 90 89 85 83 83 81 83
Dewpt         78 77 77 77 77 77 78 77 78 77 77 77 76 77 77 78 78 77 78 77 77 78
RH            70 77 82 82 82 82 72 68 70 80 80 82 82 82 70 68 70 77 85 82 88 85
Wind dir       W NW  W  W  W  W  W  W  W NW NW  W  W  W  W  W  W  W  W  W  W  W
Wind spd       8  8  6  5  5  5  6  8  8  6  5  4  3  4  5  5  6  8  5  4  5  8
Clouds        B1 B1 B1 SC SC SC SC SC B1 B1 B1 SC SC SC SC B1 B1 B1 SC SC SC SC
PoP 12hr                     40          50          50          50          50
QPF 12hr                   0.33        0.32        0.11        0.22        0.14
Rain shwrs     C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C
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   103 96 92 92 92 92102102103 94 94 92 89 92100105103 96 93 92 88 93
Max heat        103    94    92   102   103    94    92   105   105    95    93


Date           09/03  Thu 09/04/25  Fri 09/05/25  Sat 09/06/25  Sun 09/07/25
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      81    91      81    92      81    92      81    91
Temp          90 85   83 83 89 85   83 83 89 85   83 83 90 85   83 83 89 85
Dewpt         78 78   78 78 78 78   78 78 78 77   77 77 77 77   77 77 77 76
PWind dir         W       W     W       W     W      SW     E       E     E
Wind char        GN      GN    GN      GN    LT      LT    LT      GN    GN
Avg clouds    SC B1   B1 SC SC B1   B1 SC SC B1   B1 SC SC SC   B1 B1 B1 B1
PoP 12hr         50      40    50      40    40      50    40      50    50
Rain shwrs     C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  C
Tstms          C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  C

$$
FLZ077-010800-
Marathon-Monroe FL
24.72N  81.04W Elev. 5 ft
406 PM EDT Sun Aug 31 2025

Date           08/31/25      Mon 09/01/25            Tue 09/02/25            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          90          80          90          81
Temp          88 85 84 83 82 83 87 88 88 85 84 82 81 83 87 89 88 86 85 83 82 83
Dewpt         76 75 76 76 76 76 76 77 76 76 75 76 76 76 77 76 77 76 76 76 76 76
RH            68 72 77 80 82 80 70 70 68 75 74 82 85 80 72 66 70 72 75 80 82 80
Wind dir       W NW NW  W  W  W  W  W  W NW NW NW NW NW  W  W  W  W  W  W  W  W
Wind spd       9  8  6  4  4  5  6  8  8  8  6  4  3  3  4  6  6  8  5  4  5  8
Clouds        B1 B1 B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC B1
PoP 12hr                     50          50          50          50          50
QPF 12hr                   0.18        0.47        0.13        0.13        0.21
Rain shwrs     C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C
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    99 94 93 91 89 91 98100 99 94 92 89 87 91 99100100 96 94 91 89 91
Max heat        100    94    91   100   100    94    91   100   100    96    91


Date           09/03  Thu 09/04/25  Fri 09/05/25  Sat 09/06/25  Sun 09/07/25
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      81    90      81    90      81    90      81    90
Temp          88 85   83 84 88 85   83 83 88 86   83 84 88 86   83 83 88 86
Dewpt         77 76   77 77 77 76   77 77 76 75   76 76 76 76   76 76 76 75
PWind dir         W       W     W      SW     W      SW     E       E     E
Wind char        GN      GN    GN      LT    LT      LT    LT      GN    GN
Avg clouds    B1 B1   B1 B1 SC B1   B1 B1 B1 B1   SC SC SC SC   B1 B1 B1 B1
PoP 12hr         50      40    50      50    50      50    50      50    50
Rain shwrs     C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  C
Tstms          C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  C

$$