Point Forecast Matrices
Issued by NWS Brownsville, TX

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Point Forecast Matrices
National Weather Service Brownsville TX
1240 PM CDT Sun Aug 31 2025

TXZ255-010900-
Brownsville-Cameron TX
25.91N  97.42W Elev. 22 ft
1240 PM CDT Sun Aug 31 2025

Date           08/31/25      Mon 09/01/25            Tue 09/02/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      79          95          78          94          77
Temp          94 89 84 83 81 79 87 92 91 87 84 82 80 79 86 91 90 86 83 81 79 78
Dewpt         74 74 76 76 76 76 76 74 75 76 77 76 76 76 76 74 75 75 76 75 75 75
RH            53 61 77 80 85 91 70 56 60 70 80 82 88 91 72 58 62 70 80 82 88 91
Wind dir      SE  E SE SE SE SE  S  E  E  E  E SE SW  W NW  N NE NE  E SE  W NW
Wind spd      10 10  5  2  2  2  2  5  9  8  3  2  2  3  4  6  9  8  3  2  2  3
Clouds        FW FW CL FW FW FW FW SC SC SC FW FW SC SC SC B1 B1 SC SC SC SC SC
PoP 12hr                      5          40          40          60          30
QPF 12hr                      0        0.01        0.02        0.15        0.02
Rain shwrs                          C  S        C  C  L  L  L  L  C  C  S  S  S
Tstms                               C  S        S  C  S  C  C  C  S     S  S
Heat index   103 98 93          98102101 98 93          96100100 96 90
Max heat        104    95         102   102    96         100   101    94


Date           09/03  Thu 09/04/25  Fri 09/05/25  Sat 09/06/25  Sun 09/07/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          94      76    95      77    94      79    93      79    92
Temp          93 88   80 77 93 88   81 78 92 87   82 80 90 87   82 79 90 85
Dewpt         72 73   75 74 70 72   75 73 72 74   75 75 74 75   76 75 74 75
PWind dir         N      SE    SE      SE    SE      SE    SE      SE    SE
Wind char        LT      LT    LT      LT    LT      LT    GN      LT    LT
Avg clouds    SC SC   FW FW FW FW   FW SC SC SC   SC B1 B1 B1   B1 B1 B1 SC
PoP 12hr         20       5    10       5    20      20    50      40    60
Rain shwrs     S  S                        S  S    S  S  C  C    C  C  L  L
Tstms             S                           S          S  C    S  S  S  C

$$
TXZ255-010900-
Harlingen-Cameron TX
26.23N  97.66W Elev. 36 ft
1240 PM CDT Sun Aug 31 2025

Date           08/31/25      Mon 09/01/25            Tue 09/02/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      75          96          74          95          73
Temp          95 90 82 80 77 76 86 92 93 88 81 79 77 75 84 90 90 87 80 78 75 74
Dewpt         74 73 76 76 75 75 77 73 74 75 76 76 75 74 76 74 75 74 76 75 74 73
RH            51 58 82 88 94 97 75 54 54 66 85 91 94 97 77 60 62 65 88 91 97 97
Wind dir       E  E SE SE SE  E  S NE  E  E  E SE SW NW NW  N NE NE  E SE SW NW
Wind spd      13 13  8  4  2  2  2  5 10 10  4  2  2  4  5  6 10 10  3  2  2  3
Clouds        SC FW FW FW FW FW FW SC SC SC FW FW SC SC SC B1 B1 SC SC SC SC SC
PoP 12hr                      5          50          40          60          20
QPF 12hr                      0        0.01        0.04        0.15        0.01
Rain shwrs                       S  C  C  S  S  C  C  C  C  L  L  S  S
Tstms                            S  C  C        S  C  S  C  C  C  S
Heat index   105 98             97100103 98             94 99101 95
Max heat        105    94         100   103    93          99   101    92


Date           09/03  Thu 09/04/25  Fri 09/05/25  Sat 09/06/25  Sun 09/07/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          97      72    98      72    97      75    95      74    93
Temp          93 89   77 73 93 89   77 73 92 88   78 76 91 87   79 75 89 86
Dewpt         70 71   74 72 68 70   74 72 71 72   75 73 73 74   76 74 73 74
PWind dir        NE      SE    SE      SE    SE      SE    SE      SE    SE
Wind char        LT      LT    LT      LT    GN      GN    GN      LT    GN
Avg clouds    SC FW   FW FW FW SC   FW SC SC SC   SC B1 B1 B1   SC SC SC SC
PoP 12hr         20       0     5       5    20      20    50      40    60
Rain shwrs        S                           S       S  C  C    C  C  C  L
Tstms             S                           S          S  C    S  S  S  C

$$
TXZ253-010900-
McAllen-Hidalgo TX
26.18N  98.24W Elev. 107 ft
1240 PM CDT Sun Aug 31 2025

Date           08/31/25      Mon 09/01/25            Tue 09/02/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      79         101          79          97          77
Temp         100 94 87 83 81 80 87 95 97 91 85 82 81 79 87 92 94 89 84 81 79 78
Dewpt         69 71 72 75 76 76 76 71 70 73 74 76 76 75 75 72 71 72 73 74 74 74
RH            37 47 61 77 85 88 70 46 42 56 70 82 85 88 68 52 47 57 70 79 85 88
Wind dir       E  E SE SE SE  E SE  E  E  E  E SE  S  N  N  N NE NE  E SE SW  W
Wind spd      11 14 11  6  4  3  3  5  9 12  8  3  3  3  5  6  8 10  5  2  2  2
Clouds        SC FW CL FW FW FW FW FW FW FW FW SC SC SC SC B1 B1 B1 SC SC SC SC
PoP 12hr                      0          40          50          60          20
QPF 12hr                      0           0        0.10        0.11        0.04
Rain shwrs                          C  C  C  C  C  C  C  C  L  L  S  S
Tstms                               C  C  C  S  S  C     S  C  C  S
Heat index   107101 94 90       98102103 99 93          96 99101 96 90
Max heat        108    99         102   105    96          99   101    94


Date           09/03  Thu 09/04/25  Fri 09/05/25  Sat 09/06/25  Sun 09/07/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min         100      76   101      77   100      79    98      78    96
Temp          95 93   81 77 96 93   81 77 94 91   82 79 93 88   81 79 92 88
Dewpt         68 67   73 72 66 66   73 73 68 69   74 74 72 72   75 74 72 71
PWind dir         N      SE    SE      SE    SE      SE    SE      SE    SE
Wind char        LT      LT    LT      GN    GN      GN    GN      GN    GN
Avg clouds    SC SC   FW FW FW FW   FW SC SC SC   SC B1 B1 B1   SC SC SC SC
PoP 12hr         10       5     5       5    10      20    40      40    50
Rain shwrs                                         S  S  S  C    C  C  C  C
Tstms                                                       C    S  S     C

$$
TXZ355-010900-
Bayview/Port Isabel-Cameron TX
26.16N  97.34W Elev. 19 ft
1240 PM CDT Sun Aug 31 2025

Date           08/31/25      Mon 09/01/25            Tue 09/02/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      78          92          77          91          76
Temp          91 87 84 82 80 79 87 90 89 86 83 81 79 78 86 89 88 86 82 80 78 77
Dewpt         77 77 77 77 76 76 78 77 78 78 78 77 76 76 78 78 78 77 76 76 76 75
RH            64 72 80 85 88 91 75 66 70 77 85 88 91 94 77 70 72 75 82 88 94 94
Wind dir       E  E SE SE  S SW SW  E  E  E  E SE SW  W NW  N NE NE  E  E SW NW
Wind spd      11 10  5  3  2  2  3  9 10  9  4  2  2  3  5 10 10  9  4  2  2  3
Clouds        FW FW FW FW FW FW FW SC SC SC FW FW SC SC SC SC SC SC SC SC SC SC
PoP 12hr                      5          40          40          60          20
QPF 12hr                      0           0        0.05        0.14        0.01
Rain shwrs                       S  C           C  C  L  L  C  C  S  S  S  S
Tstms                            S  C           S  C  C  C  C  C           S
Heat index   104 99 93 90      100103102 98 93          98103101 97 90
Max heat        105    96         103   103    96         103   103    95


Date           09/03  Thu 09/04/25  Fri 09/05/25  Sat 09/06/25  Sun 09/07/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          92      75    93      76    93      78    92      77    90
Temp          90 86   80 76 90 87   80 77 90 87   82 79 89 85   81 79 87 85
Dewpt         75 76   75 74 73 75   76 73 75 76   77 75 77 78   77 75 77 76
PWind dir         N      SE    SE      SE    SE      SE    SE      SE    SE
Wind char        LT      LT    LT      LT    GN      LT    GN      LT    GN
Avg clouds    SC FW   FW FW FW FW   FW SC SC SC   SC B1 B1 B1   B1 SC SC SC
PoP 12hr         10       0     5       5    20      20    40      40    50
Rain shwrs                                 S  S       S  C  C    C  C  C  C
Tstms                                         S          S  C    S  S  C  C

$$
TXZ249-010900-
Hebbronville-Jim Hogg TX
27.35N  98.74W Elev. 663 ft
1240 PM CDT Sun Aug 31 2025

Date           08/31/25      Mon 09/01/25            Tue 09/02/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      75          96          73          94          73
Temp          97 92 83 79 76 75 85 92 92 87 80 78 75 74 82 90 91 88 81 77 75 73
Dewpt         68 73 77 78 76 75 76 71 70 75 77 77 75 74 75 70 69 71 74 75 74 72
RH            39 54 82 97100100 75 51 49 68 91 97100100 79 52 49 57 79 94 97 97
Wind dir      SE  E  E SE SE  E  E NE NE NE  E SE SE  N  N NE NE NE  E SE  S  W
Wind spd      10 13 10  5  4  2  3  4  8  9  4  2  2  2  5  6  6  6  3  2  2  2
Clouds        SC SC FW FW B1 SC SC SC SC SC SC SC B1 B1 SC B1 B1 SC SC SC SC FW
PoP 12hr                     10          60          50          40           5
QPF 12hr                      0        0.02        0.15        0.08           0
Rain shwrs                          C  C  C  C  C  C  C  C  C  C
Tstms                               C  C  C  C  C  C  S  S  C  C
Heat index   102102 91          93 98 98 96                96 96 93
Max heat        102    98          98    99    93          96    96    92


Date           09/03  Thu 09/04/25  Fri 09/05/25  Sat 09/06/25  Sun 09/07/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          98      71    99      71    97      73    95      73    92
Temp          94 92   77 71 95 93   77 72 93 91   77 74 91 88   77 74 88 85
Dewpt         66 65   72 71 63 64   73 71 65 68   75 73 69 73   76 73 70 74
PWind dir         N      SE    SE      SE    SE      SE    SE      SE    SE
Wind char        LT      LT    LT      LT    GN      GN    GN      LT    GN
Avg clouds    FW FW   FW FW FW SC   SC SC SC SC   B1 B1 B1 B1   B1 B1 SC SC
PoP 12hr          5       0     5       5    10      10    30      30    40
Rain shwrs                                               S  C    S  C  C  C
Tstms                                                       S    S        C

$$
TXZ250-010900-
Falfurrias-Brooks TX
27.21N  98.12W Elev. 113 ft
1240 PM CDT Sun Aug 31 2025

Date           08/31/25      Mon 09/01/25            Tue 09/02/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      76          96          75          94          73
Temp          96 90 83 80 77 76 86 92 91 87 80 78 77 75 84 92 91 88 81 78 75 73
Dewpt         72 76 78 78 77 75 77 73 74 77 77 78 76 74 77 72 72 75 75 75 74 73
RH            46 64 85 94100 97 75 54 58 72 91100 97 97 80 52 54 66 82 91 97100
Wind dir       E  E  E SE SE  E  N NE NE  E  E SE  N  N  N  N NE  E  E  S SW NW
Wind spd      10 11  5  2  2  2  3  5  5  5  2  1  1  3  5  6  5  5  2  1  2  2
Clouds        B1 FW FW SC FW SC SC FW SC SC SC SC SC B1 B1 SC B1 SC SC SC SC SC
PoP 12hr                     10          60          50          50           5
QPF 12hr                      0        0.03        0.08        0.07           0
Rain shwrs                    S     C  L  C  C  C  C  C  C  C  C
Tstms                               C  C  C  S  C  C  S  S  C  C
Heat index   104102 93          97101101 98             94 99 98 97
Max heat        104    97         101   101    92          99    99    94


Date           09/03  Thu 09/04/25  Fri 09/05/25  Sat 09/06/25  Sun 09/07/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          98      72    98      72    97      74    95      74    92
Temp          95 92   77 73 96 91   77 72 94 89   78 74 93 86   78 74 89 85
Dewpt         68 68   74 72 66 69   73 72 68 73   75 74 72 76   76 74 72 76
PWind dir         N      SE    SE      SE    SE      SE    SE      SE     E
Wind char        LT      LT    LT      LT    LT      LT    GN      LT    GN
Avg clouds    FW FW   FW FW SC SC   SC SC SC SC   SC B1 B1 B1   SC B1 B1 SC
PoP 12hr          5       0     5       5    10      10    40      30    50
Rain shwrs                                               S  C    S  C  C  C
Tstms                                                       C    S  S  S  C

$$
TXZ253-010900-
Edinburg-Hidalgo TX
26.44N  98.13W Elev. 75 ft
1240 PM CDT Sun Aug 31 2025

Date           08/31/25      Mon 09/01/25            Tue 09/02/25            Wed
CDT 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
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                      76          98          76          95          74
Temp          98 90 83 80 78 77 87 93 95 88 82 80 78 76 84 91 92 86 81 78 76 75
Dewpt         69 72 74 75 75 74 75 71 70 73 75 76 75 74 75 72 71 72 74 74 73 73
RH            39 56 74 85 91 90 68 49 45 61 79 88 91 94 74 54 51 63 79 88 90 94
Wind dir       E  E SE SE  E NE SE NE NE  E  E SE  S  N  N  N NE  E  E SE SW  W
Wind spd      11 13  9  4  2  2  2  5  9 10  4  1  2  3  5  6  9  6  2  1  2  2
Clouds        SC FW FW CL FW FW FW SC SC FW SC FW SC SC SC B1 B1 SC SC SC SC SC
PoP 12hr                      5          40          50          60          20
QPF 12hr                      0        0.01        0.16        0.11        0.02
Rain shwrs                          C  C  C  C  C  C  C  C  L  L  S  S
Tstms                               C  C  S  S  S  C  S  S  C  C  S
Heat index   104 98 90          96101102 96             92 98 99 93
Max heat        104    95         101   102    93          98    99    91


Date           09/03  Thu 09/04/25  Fri 09/05/25  Sat 09/06/25  Sun 09/07/25
CDT 6hrly     13 19   01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Max/Min          98      73   100      73    98      75    96      75    94
Temp          93 91   78 74 94 91   78 73 94 90   79 76 92 87   79 76 90 85
Dewpt         68 67   72 71 66 67   73 71 68 69   74 73 72 73   75 74 72 73
PWind dir         N      SE    SE      SE    SE      SE    SE      SE     E
Wind char        LT      LT    LT      LT    GN      LT    GN      LT    GN
Avg clouds    FW FW   FW FW FW FW   FW SC SC SC   SC B1 B1 B1   B1 SC SC SC
PoP 12hr         10       0     5       5    20      20    40      30    60
Rain shwrs                                    S       S  S  C    C  C  C  L
Tstms                                         S             C    S  S  S  C

$$