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Issued by NWS Rapid City, SD

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Point Forecast Matrices
National Weather Service Rapid City SD
136 PM MDT Tue Sep 15 2026

SDZ026-152200-
Rapid City Regional Airport-Pennington SD
44.05N 103.06W Elev. 3204 ft
136 PM MDT Tue Sep 15 2026

Date             Tue 09/15/26            Wed 09/16/26            Thu 09/17/26
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      74          53          85          52          70
Temp                      73 66 57 53 54 53 60 73 82 78 65 60 55 52 57 62 68 65
Dewpt                     38 42 42 44 46 47 51 54 53 52 50 50 51 52 56 59 61 61
RH                        28 42 57 71 74 80 72 51 37 40 58 69 86100 96 90 78 87
Wind dir                  SE SE SE SE SE SE  S  S NE  N  N NW  N  N  N  E  E NE
Wind spd                  11 13 10 11 14 18 19 17  6 10  9 11 12 11  8  9 10  9
Wind gust                 24 26 23 23 27 31 34 31 21 24 20 21          19 21 21
Clouds                    SC FW SC B1 B2 B1 SC FW SC B1 B2 B2 B1 B2 OV OV OV OV
PoP 12hr                      0          20          20          30          40
QPF 12hr                      0           0           0           0        0.35
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  S  S                 C  C  C  C  C  C  C
Tstms                               S  S  S                             S  S  S


Date               Fri 09/18/26  Sat 09/19/26  Sun 09/20/26  Mon 09/21/26
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            53    76      54    74      50    73      47    74
Temp          59   56 69 76 60   55 68 69 54   51 69 68 52   47 69 70
Dewpt         59   56 62 61 58   55 59 57 54   50 54 52 49   47 52 50
PWind dir          NE     E       E    NE       N     N      NW     E
Wind char          LT    LT      LT    GN      LT    LT      LT    LT
Avg clouds    OV   OV B2 SC SC   B2 B2 B1 B1   SC SC SC SC   SC SC FW
PoP 12hr           50    10      50    70      50    40      30    20
Rain shwrs     C    C        C    C  C  L  C    S  S  C  C          S
Tstms          S    S        S          S  S

$$
WYZ054-152200-
Northeast Wyoming Regional Airport-Campbell WY
44.35N 105.54W Elev. 4364 ft
136 PM MDT Tue Sep 15 2026

Date             Tue 09/15/26            Wed 09/16/26            Thu 09/17/26
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      71          54          78          50          73
Temp                      70 67 59 59 57 55 64 73 76 70 59 54 51 51 60 69 73 69
Dewpt                     33 34 37 40 41 43 45 41 39 40 41 43 44 46 49 53 55 56
RH                        25 29 44 49 55 64 50 31 26 33 51 66 77 83 67 57 53 63
Wind dir                  SE SE SE SE  S  S SW  N  N  N  N  N  N  E SE SE SE SE
Wind spd                  12 14 19 24 25 21 13 11 13 13  9  5  4  3  6 16 17 19
Wind gust                 26 27 31 36 36 33    23 25 26 23 19          27 29
Clouds                    SC SC B1 B1 B1 SC FW FW SC SC B1 B2 B2 OV B2 OV B2 B2
PoP 12hr                      0           0           0          20          40
QPF 12hr                      0           0           0           0        0.11
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                  S  S  C  C  C  C


Date               Fri 09/18/26  Sat 09/19/26  Sun 09/20/26  Mon 09/21/26
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            55    81      54    73      48    73      47    77
Temp          58   56 76 74 57   55 69 68 53   50 70 69 52   48 74 74
Dewpt         56   55 54 50 53   52 51 47 47   45 45 39 41   41 42 35
PWind dir          SE    SE      NW    NW      NW    NW      SE     S
Wind char          BZ    LT      GN    GN      LT    LT      LT    LT
Avg clouds    B1   B1 SC SC SC   B1 B2 B1 SC   SC SC FW FW   FW FW FW
PoP 12hr            5    20      80    40      40    30       5     5
Rain shwrs                S  D    C  C  C  C    C  C  S
Tstms                     S  C          S  S

$$
SDZ001-152200-
Buffalo-Harding SD
45.60N 103.55W Elev. 3004 ft
136 PM MDT Tue Sep 15 2026

Date             Tue 09/15/26            Wed 09/16/26            Thu 09/17/26
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      70          51          81          48          71
Temp                      69 64 54 52 52 51 60 72 80 74 60 52 49 48 54 65 69 65
Dewpt                     40 39 42 42 44 45 49 50 47 47 50 51 49 48 52 54 55 57
RH                        35 40 64 69 74 80 67 46 31 38 69 96100100 93 68 61 75
Wind dir                   N SE  E  E  E SE SE  S NW NW  N  N NE NE  E SE SE SE
Wind spd                   5 10 12 14 19 19 19 13 11 14 16 11  8  8 10 16 19 20
Wind gust                                   33    21 26                27 32 33
Clouds                    FW SC SC SC SC SC FW CL FW FW FW B1 B1 OV B2 B2 OV OV
PoP 12hr                      0          20          20          10          40
QPF 12hr                      0           0           0           0        0.05
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  S  S                       S  S  C  C  C
Tstms                               S  S  S                             S  S  S


Date               Fri 09/18/26  Sat 09/19/26  Sun 09/20/26  Mon 09/21/26
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            53    75      54    70      50    72      47    74
Temp          58   55 70 71 59   55 68 65 54   51 69 65 50   48 71 68
Dewpt         58   55 60 58 58   55 57 55 54   51 52 49 50   47 49 47
PWind dir          SE    SE       E    SE       W    NW      NE    SE
Wind char          BZ    GN      GN    GN      GN    GN      LT    GN
Avg clouds    OV   OV OV B2 B1   B2 OV B2 B1   B2 B2 SC SC   SC SC FW
PoP 12hr           40     5      70    70      60    50      20    10
Rain shwrs     C             C    L  L  L  L    C  C  C  S
Tstms          S             S       S  S  S

$$
SDZ029-152200-
Custer County Airport-Custer SD
43.73N 103.62W Elev. 5602 ft
136 PM MDT Tue Sep 15 2026

Date             Tue 09/15/26            Wed 09/16/26            Thu 09/17/26
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      64          47          78          52          63
Temp                      64 59 52 49 48 47 56 68 77 72 61 57 53 52 57 58 61 61
Dewpt                     35 37 37 38 41 42 47 48 44 46 44 43 46 48 53 55 56 56
RH                        34 44 56 66 77 83 72 49 31 39 53 59 77 86 86 90 84 84
Wind dir                   S SE  E SE  S  S SW  W  W NE NE NE NE NE NE  E  E  E
Wind spd                   8  9  8  8  6  5  6  8  8  5  6  6  5  5  6  8  6  6
Wind gust                 21 20 19 19 21 16 17 19 19 17 21 20 16 16 19 20 20 19
Clouds                    SC FW FW B1 B2 B1 FW FW B1 B1 B1 B2 B2 B2 OV OV OV OV
PoP 12hr                      0          20          10          30          40
QPF 12hr                      0           0           0           0        0.31
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  S                    C  C  C  C  C  C  C
Tstms                               S  S                                S  S  S


Date               Fri 09/18/26  Sat 09/19/26  Sun 09/20/26  Mon 09/21/26
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            50    74      51    69      47    66      44    67
Temp          55   52 68 71 56   52 63 64 51   48 63 62 48   45 64 64
Dewpt         55   52 55 54 53   51 51 48 46   44 43 41 40   40 41 41
PWind dir          NE     S       N     W      NW    NW       N     S
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    OV   B2 B1 SC SC   B2 B2 SC SC   SC SC SC SC   FW SC FW
PoP 12hr           50    10      50    60      50    40      20    20
Rain shwrs     C    S     S  C    C  C  L  C    C  C  C  S          S
Tstms          S          S  S          C  C

$$
SDZ013-152200-
Faith Municipal Airport-Meade SD
45.04N 102.02W Elev. 2584 ft
136 PM MDT Tue Sep 15 2026

Date             Tue 09/15/26            Wed 09/16/26            Thu 09/17/26
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      72          50          81          50          70
Temp                      71 66 55 51 51 50 59 69 78 75 61 55 52 50 57 65 70 66
Dewpt                     43 41 43 46 46 47 49 52 55 54 55 55 52 50 53 56 57 58
RH                        36 40 64 83 83 89 69 55 45 48 81100100100 86 73 63 75
Wind dir                  NW  E  E SE SE SE SE  S  S NW  E  E NE NE NE  E  E  E
Wind spd                   5  5  9 14 18 20 27 24 13  6  8 10  9 10 11 12 13 14
Wind gust                                   37 34       18             23 25 25
Clouds                    FW SC FW SC B1 B2 SC FW FW SC B1 SC SC B2 B2 B2 OV OV
PoP 12hr                      0          20          20           5          40
QPF 12hr                      0           0           0           0        0.09
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                             S  S                             C  C  C
Tstms                                  S  S                                   S


Date               Fri 09/18/26  Sat 09/19/26  Sun 09/20/26  Mon 09/21/26
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            54    73      54    71      51    71      48    73
Temp          58   55 68 71 58   55 68 67 54   52 68 66 51   48 69 70
Dewpt         58   55 62 59 57   55 59 56 54   52 54 51 51   48 52 49
PWind dir           E     E       E     E      SE    NW      NE     E
Wind char          GN    GN      GN    GN      GN    GN      LT    GN
Avg clouds    OV   OV OV B2 B2   OV OV B2 B2   B2 B2 B1 SC   SC B1 SC
PoP 12hr           50    10      50    50      50    40      20    20
Rain shwrs     C    C             C  C  C  C    C  C  C  S       S
Tstms          S    S                      S             S

$$
SDZ042-152200-
Pine Ridge Airport-Oglala Lakota SD
43.02N 102.51W Elev. 3333 ft
136 PM MDT Tue Sep 15 2026

Date             Tue 09/15/26            Wed 09/16/26            Thu 09/17/26
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      74          50          84          55          72
Temp                      72 70 59 55 53 51 61 73 82 80 68 62 58 55 62 68 71 69
Dewpt                     41 38 44 44 46 48 51 53 53 54 56 55 56 55 59 60 60 61
RH                        33 31 57 66 77 89 70 49 37 41 65 78 93100 90 76 68 76
Wind dir                  SE SE SE SE SE  S  S  S SW  S  E SE  E NE NE  E  E NE
Wind spd                   8 11 12 16 17 19 19 17 11  6  5  5  3  6  8 11 12 11
Wind gust                       23    28 29 32                13          23
Clouds                    FW FW SC B1 B1 B1 SC FW B1 B1 B1 B2 B1 B2 B2 OV OV OV
PoP 12hr                      0          20          10          20          40
QPF 12hr                      0        0.01           0           0        0.53
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  S                    S  S  C  C  C  C  C
Tstms                               S  S                                S  S  C


Date               Fri 09/18/26  Sat 09/19/26  Sun 09/20/26  Mon 09/21/26
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            55    80      54    76      51    74      47    75
Temp          60   56 72 80 61   56 70 72 56   52 70 71 53   48 71 72
Dewpt         60   56 59 57 58   55 57 54 54   52 50 47 49   48 48 45
PWind dir          NE     N       E    NE      NE    NW       E    NW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    OV   OV B2 SC SC   B1 B2 B1 SC   B1 B1 SC SC   FW SC FW
PoP 12hr           50     0      30    40      50    30      20    10
Rain shwrs     C    S        S    C  C  C  C    C  S  C  S
Tstms          C    S        S          C  S

$$
SDZ032-152200-
Philip Airport-Haakon SD
44.05N 101.60W Elev. 2209 ft
136 PM MDT Tue Sep 15 2026

Date             Tue 09/15/26            Wed 09/16/26            Thu 09/17/26
MDT 3hrly     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      76          49          85          52          73
Temp                      74 70 57 52 50 49 59 69 81 80 65 58 55 53 60 65 71 70
Dewpt                     43 42 44 46 47 48 52 54 58 58 58 58 55 53 59 61 62 62
RH                        33 36 62 80 89 96 78 59 46 47 78100100100 96 87 73 76
Wind dir                   N SE  E  E SE SE SE  S  S  E  E NE NE NE NE  E  E  E
Wind spd                   4  8 10 11 12 14 18 21 13  8  8  6  6  9 11 13 14 16
Wind gust                                   32    24                   26 27 27
Clouds                    FW FW FW B1 B1 B1 SC FW SC B1 B1 B1 B1 B1 OV OV OV OV
PoP 12hr                      0          20          20           5          40
QPF 12hr                      0           0           0           0        0.30
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  S  S                       S  S  C  C  C
Tstms                               S  S  S                             S  S  C


Date               Fri 09/18/26  Sat 09/19/26  Sun 09/20/26  Mon 09/21/26
MDT 6hrly     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            53    76      52    74      50    73      46    74
Temp          59   55 66 76 59   54 66 71 55   52 67 70 52   48 67 71
Dewpt         59   55 63 62 57   54 59 58 54   52 55 53 51   47 52 51
PWind dir           E    NE      NE    NE      NE    NW       N    NE
Wind char          GN    GN      LT    GN      LT    GN      LT    LT
Avg clouds    OV   OV OV B2 B1   B2 B2 B2 B1   B1 B1 B1 SC   SC SC SC
PoP 12hr           50     5      30    40      40    40      20    20
Rain shwrs     C    C             C  C  C  C    C  C  C  S       S
Tstms          C    C                S     S             S

$$
SDZ049-152200-
Winner Regional Airport-Tripp SD
43.39N  99.84W Elev. 2032 ft
236 PM CDT Tue Sep 15 2026

Date             Tue 09/15/26            Wed 09/16/26            Thu 09/17/26
CDT 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      74          51          77          58          74
Temp                      74 68 57 52 51 51 58 64 73 73 65 62 61 59 63 68 72 71
Dewpt                     43 50 51 52 51 50 54 54 60 64 64 62 61 59 63 64 66 66
RH                        33 52 80100100 96 86 70 64 73 97100100100100 87 81 84
Wind dir                   N  E SE SE SE SE SE SE  S  S SE SE SE  E  E  E  E  E
Wind spd                   5  5  8  8  8 10 14 20 16 11 11  9  5  6 10 13 13 16
Wind gust                                   26 31 29                   25 25
Clouds                    FW FW FW SC SC B1 B1 B1 SC SC SC B1 B1 B2 B2 OV OV OV
PoP 12hr                      0           5          20          10          40
QPF 12hr                      0           0           0           0        0.27
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S                       S  S  C  C  C
Tstms                                     S                             S  S  C


Date          Fri 09/18/26  Sat 09/19/26  Sun 09/20/26  Mon 09/21/26
CDT 6hrly     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          60    75      57    71      56    71      52    71
Temp          64 61 69 75   63 58 66 69   58 56 67 67   55 52 66 68
Dewpt         64 61 66 66   61 58 62 63   58 55 58 60   55 52 54 58
PWind dir         E     N       N     N      NE     N      NE     N
Wind char        BZ    GN      LT    GN      LT    GN      LT    GN
Avg clouds    OV OV B2 B2   B1 B2 OV B2   B1 B2 B2 B1   B1 SC B1 SC
PoP 12hr         50    20      10    20      40    20      20    20
Rain shwrs     C  C  S             S  S    C  C  S  S    S  S     S
Tstms          C  C                           S          S

$$