Point Forecast Matrices
Issued by NWS Key West, FL

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Point Forecast Matrices
National Weather Service Key West FL
403 PM EDT Sat Aug 15 2026

FLZ078-160800-
Key West-Monroe FL
24.55N  81.75W Elev. 3 ft
403 PM EDT Sat Aug 15 2026

Date           08/15/26      Sun 08/16/26            Mon 08/17/26            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          82          92          82
Temp          90 86 85 84 84 85 89 90 90 86 84 84 83 84 89 90 90 86 84 84 82 84
Dewpt         78 78 78 78 78 77 77 77 77 76 76 76 76 76 76 76 76 76 76 76 76 76
RH            68 77 80 82 82 77 68 66 66 72 77 77 80 77 66 64 64 72 77 77 82 77
Wind dir       E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E NE  E  E  E  E
Wind spd       8  9 10 10  8  8  8  8  6  6  6  6  6  6  4  3  2  2  3  3  2  4
Clouds        FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC FW FW
PoP 12hr                      5           5           0           5           5
QPF 12hr                      0           0           0           0           0
Rain shwrs     S
Tstms          S
Heat index   105 98 97 95 95 96102103103 96 93 93 91 93100102102 96 93 93 89 93
Max heat        106    97    96   103   106    94    93   102   102    94    93


Date           08/18  Wed 08/19/26  Thu 08/20/26  Fri 08/21/26  Sat 08/22/26
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      81    91      82    91      82    92      83    92
Temp          90 87   83 84 89 87   83 84 89 87   84 85 89 87   84 85 89 87
Dewpt         76 75   75 75 75 75   75 75 76 75   76 76 76 76   76 76 76 76
PWind dir        NE      NW    NW      NW    SE       E    SE       E     E
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   SC FW FW FW
PoP 12hr          5       0     0       5     5      10     5      10    10
Rain shwrs                                         S  S          S  S  S  S

$$
FLZ077-160800-
Marathon-Monroe FL
24.72N  81.04W Elev. 5 ft
403 PM EDT Sat Aug 15 2026

Date           08/15/26      Sun 08/16/26            Mon 08/17/26            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                      84          90          83          90          83
Temp          89 87 86 86 85 86 88 88 88 86 86 85 85 84 87 88 88 86 85 85 83 85
Dewpt         77 78 78 79 78 77 77 77 76 76 76 77 76 76 76 76 75 76 76 76 76 76
RH            68 75 77 80 80 75 70 70 68 72 72 77 75 77 70 68 66 72 75 75 80 75
Wind dir       E  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E SE SE  E SE SE  S
Wind spd       9 10 10  9  8  8  8  8  8  8  6  6  5  5  4  3  2  1  1  1  1  1
Clouds        FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW
PoP 12hr                      5           5           0           5           5
QPF 12hr                      0           0           0           0           0
Rain shwrs     S
Tstms          S
Heat index   102100 98100 97 97100100 99 96 96 96 94 93 98 99 98 96 94 94 91 94
Max heat        103   100    97   100   103    96    96    99    99    96    94


Date           08/18  Wed 08/19/26  Thu 08/20/26  Fri 08/21/26  Sat 08/22/26
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      83    90      83    90      83    90
Temp          88 87   85 85 88 87   85 85 88 87   85 84 88 87   85 84 88 87
Dewpt         76 75   76 75 75 75   76 75 76 75   76 75 76 75   76 76 76 76
PWind dir        SW       W     W       W     S      SE    SE      SE    SE
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          5       0     5       5     5      10    10      10    10
Rain shwrs                                         S  S          S  S  S  S

$$