Point Forecast Matrices
Issued by NWS Key West, FL

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Point Forecast Matrices
National Weather Service Key West FL
401 PM EDT Tue Aug 19 2025

FLZ078-200800-
Key West-Monroe FL
24.55N  81.75W Elev. 3 ft
401 PM EDT Tue Aug 19 2025

Date           08/19/25      Wed 08/20/25            Thu 08/21/25            Fri
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                      83          93          82          92          82
Temp          91 87 85 84 84 85 89 91 92 87 85 84 83 84 88 90 90 86 85 84 83 84
Dewpt         79 79 78 77 78 79 78 79 78 78 77 77 77 77 77 77 77 76 76 75 76 76
RH            68 77 80 80 82 82 70 68 64 75 77 80 82 80 70 66 66 72 75 74 80 77
Wind dir      NW NW  N NW NW NW  W  W  W  W  W  W  W  W  W  W  W  W  W SW SW SW
Wind spd       9 10  9  6  6  8 11 12 11 10  9  8  9  8  9  9  8  5  4  4  4  4
Clouds        FW FW FW FW FW FW FW SC FW FW SC SC FW FW FW SC FW SC FW FW FW FW
PoP 12hr                     30          30          30          30          30
QPF 12hr                   0.07        0.08           0        0.03           0
Rain shwrs           C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C  C
Tstms                S  S  S  C  C  C  C  C  C  C  C  S  S  S  S  S  S  S  S  S
Heat index   108101 97 94 95 98103108107100 96 94 92 94100103103 96 94 92 91 93
Max heat        109    97    98   108   108    98    94   103   103    96    93


Date           08/22  Sat 08/23/25  Sun 08/24/25  Mon 08/25/25  Tue 08/26/25
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      82    92      83    93      83    92      82    92
Temp          90 86   84 84 90 86   84 85 91 87   84 85 90 86   84 84 90 86
Dewpt         76 76   75 76 76 76   75 76 76 76   75 77 76 75   75 76 77 76
PWind dir        SW       W     W      NE     S      NE    NW       N     N
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW   FW FW FW FW   FW FW FW FW   FW FW FW FW   FW FW FW FW
PoP 12hr         30      30    30      30    30      30    30      30    30
Rain shwrs     C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  C
Tstms          S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$
FLZ077-200800-
Marathon-Monroe FL
24.72N  81.04W Elev. 5 ft
401 PM EDT Tue Aug 19 2025

Date           08/19/25      Wed 08/20/25            Thu 08/21/25            Fri
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          91          83          91          83
Temp          90 87 85 85 84 84 88 89 90 88 86 85 83 85 88 89 89 86 85 85 83 85
Dewpt         76 77 77 77 77 77 77 78 78 77 77 77 77 76 77 77 76 76 75 75 76 76
RH            64 72 77 77 80 80 70 70 68 70 75 77 82 75 70 68 66 72 72 72 80 75
Wind dir      NW NW  N NW NW NW  W  W  W  W  W  W  W  W  W  W  W  W  W SW  W  W
Wind spd       9 10  9  4  5  6 10 12 12 12 11 10 10  9 10 10  9  6  4  4  4  4
Clouds        FW SC SC SC SC SC FW SC SC FW SC SC SC SC SC SC FW SC FW FW FW FW
PoP 12hr                     30          30          30          30          30
QPF 12hr                   0.06        0.24        0.01        0.02           0
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  S  S  S  C  C  C  C  C  C  C  C  S  S  S  S  S  S  S  S  S
Heat index   102 99 96 96 94 94100103105100 97 96 92 94100102100 96 94 94 91 94
Max heat        105    97    94   103   105    99    94   102   102    96    94


Date           08/22  Sat 08/23/25  Sun 08/24/25  Mon 08/25/25  Tue 08/26/25
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      83    91      82    91      83    90      82    90
Temp          89 86   85 85 89 87   84 85 89 87   85 85 89 86   84 84 89 86
Dewpt         76 76   75 75 76 75   75 76 76 76   75 75 76 75   75 75 76 75
PWind dir         W       W     W      NE     S      NE    NW      NW    NW
Wind char        LT      LT    LT      LT    LT      LT    LT      GN    GN
Avg clouds    FW FW   FW FW FW FW   FW FW FW FW   FW FW FW FW   FW FW FW FW
PoP 12hr         30      30    30      30    30      30    30      30    30
Rain shwrs     C  C    C  C  C  C    C  C  C  C    C  C  C  C    C  C  C  C
Tstms          S  S    S  S  S  S    S  S  S  S    S  S  S  S    S  S  S  S

$$