Point Forecast Matrices
Issued by NWS Billings, MT

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FOUS55 KBYZ 120647
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Point Forecast Matrices
National Weather Service Billings MT
1247 AM MDT Sat Sep 12 2026

MTZ235-131000-
Billings-Yellowstone MT
45.81N 108.53W Elev. 3648 ft
1247 AM MDT Sat Sep 12 2026

Date           09/11/26      Sat 09/12/26            Sun 09/13/26            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      48          66          46          74          51
Temp                      51 49 50 56 64 63 57 52 49 47 48 60 71 73 64 58 54 51
Dewpt                     44 44 47 45 43 44 43 42 41 41 42 43 40 44 48 45 44 41
RH                        77 83 89 66 46 50 59 69 74 79 80 53 32 35 56 62 69 68
Wind dir                  NE NE NE NE NE NE NE NE NE NE  E  E  E  E  N NW NW  W
Wind spd                   8  8  9  9 10 13 14 14 13 11 10 10 11  9  5 14 13 10
Wind gust                                         24
Clouds                    OV OV B2 B1 SC B1 B2 SC SC B1 B1 SC FW SC SC SC SC SC
PoP 12hr                     20           5           5           5          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S                                            S  S


Date           09/14/26  Tue 09/15/26  Wed 09/16/26  Thu 09/17/26  Fri 09/18/26
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          69      44    71      46    68      46    78      49    78
Temp          64 65 51   44 63 68 53   47 60 66 51   46 68 75 56   49 70 75
Dewpt         35 34 41   39 42 37 41   41 44 42 43   42 43 38 41   40 42 40
PWind dir         W       E     E      NE     N       E    SW       N    NW
Wind char        BZ      GN    LT      GN    LT      LT    LT      LT    LT
Avg clouds    FW FW FW   FW FW FW FW   SC B1 SC FW   FW FW FW FW   FW SC SC
PoP 12hr          0       0     0       5    10       0     5      10    10

$$
MTZ065-131000-
Livingston-Park MT
45.70N 110.47W Elev. 4656 ft
1247 AM MDT Sat Sep 12 2026

Date           09/11/26      Sat 09/12/26            Sun 09/13/26            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      43          67          40          74          40
Temp                      47 44 46 56 65 63 55 48 45 41 44 58 71 70 57 49 43 41
Dewpt                     46 44 42 42 40 40 41 42 42 41 40 40 37 34 32 38 36 36
RH                        96100 86 59 40 43 59 80 89100 86 51 29 26 38 66 76 82
Wind dir                   E  E  E  E  E  E  E  E  E  E  E  E SE  S  W  W  W  W
Wind spd                  17 12 12 11 11 17 23 25 23 24 20 13 17 20 19 17 14 17
Wind gust                 27             27 35 39 35 36 34 26 33 33 35 27
Clouds                    B2 B2 B2 SC B1 B2 B2 B1 B2 B2 B2 SC FW FW FW SC SC FW
PoP 12hr                     30           5          10           5          30
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S                                            C  C
Tstms
Obvis                     PF PF                   PF PF


Date           09/14/26  Tue 09/15/26  Wed 09/16/26  Thu 09/17/26  Fri 09/18/26
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          65      36    70      39    68      40    78      44    78
Temp          58 63 46   37 62 66 48   39 60 65 47   41 69 74 53   44 71 74
Dewpt         30 28 34   32 35 31 36   37 37 33 37   36 34 30 33   34 35 33
PWind dir         W      SW     E       E    NE      SE     W      SW    NW
Wind char        WY      GN    LT      GN    LT      LT    LT      LT    LT
Avg clouds    SC FW FW   FW FW FW FW   SC SC FW FW   FW FW FW FW   FW SC SC
PoP 12hr          0       0     0       5    10       5    10      10    10

$$
MTZ032-131000-
Miles City-Custer MT
46.42N 105.90W Elev. 2628 ft
1247 AM MDT Sat Sep 12 2026

Date           09/11/26      Sat 09/12/26            Sun 09/13/26            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      47          63          46          72          52
Temp                      48 47 50 56 60 62 54 51 48 46 52 63 69 71 63 60 55 52
Dewpt                     42 43 44 41 38 42 43 42 40 41 42 40 39 46 50 53 51 48
RH                        80 86 80 57 44 48 66 71 74 83 69 43 33 41 62 78 86 86
Wind dir                  NW  N  E  E NE NE NE NE NE NE  E  E SE SE SE SE NW  W
Wind spd                   4  4  5  5  6  8  8  9 10 10 16 21 21 21 19 13 13 14
Wind gust                                               27          29
Clouds                    B2 B2 B1 OV OV B2 B2 B2 B2 B1 SC SC FW SC SC B1 B1 SC
PoP 12hr                      5          20          10           0          50
QPF 12hr                      0           0           0           0        0.02
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S                             C  C  C  C
Tstms                                                                   S


Date           09/14/26  Tue 09/15/26  Wed 09/16/26  Thu 09/17/26  Fri 09/18/26
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          70      42    71      47    71      45    78      47    79
Temp          65 65 49   42 62 68 53   47 65 67 51   45 71 75 55   47 72 75
Dewpt         36 39 42   42 39 39 41   43 46 44 44   45 46 44 44   43 44 42
PWind dir         W      NW    SE      NE     N       E     S      NE    NE
Wind char        BZ      GN    LT      GN    GN      LT    LT      LT    LT
Avg clouds    SC FW FW   FW FW FW FW   SC B1 SC FW   FW FW FW FW   FW FW SC
PoP 12hr          5       0     0      20     5       5     0      10    10
Rain shwrs                              S

$$
MTZ033-131000-
Baker-Fallon MT
46.38N 104.24W Elev. 2969 ft
1247 AM MDT Sat Sep 12 2026

Date           09/11/26      Sat 09/12/26            Sun 09/13/26            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      42          63          40          70          47
Temp                      46 43 49 58 61 62 53 49 46 42 51 63 69 65 57 55 52 50
Dewpt                     40 39 39 37 37 39 41 41 39 38 39 37 39 43 45 49 51 49
RH                        79 86 68 45 41 43 64 74 76 86 63 38 33 45 64 80 96 96
Wind dir                  NW NW  N  W NW NE NE NE  E  E  E SE SE SE SE SE SE  W
Wind spd                   5  3  3  5  5  5  6  6 10 11 19 25 27 28 28 24 18 14
Wind gust                                               31 37 42 43 41 34
Clouds                    B1 B2 B2 B2 OV OV B2 OV B2 SC SC SC SC FW SC B2 B2 B1
PoP 12hr                      5          20          10           0          70
QPF 12hr                      0           0           0           0        0.07
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S                             S  S  L  L  S
Tstms                                                                   S  S


Date           09/14/26  Tue 09/15/26  Wed 09/16/26  Thu 09/17/26  Fri 09/18/26
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          71      37    71      41    72      40    79      44    80
Temp          67 65 47   38 64 66 51   45 67 66 49   44 72 74 54   47 74 74
Dewpt         37 38 41   37 38 38 41   42 44 44 44   43 44 43 45   42 41 40
PWind dir         W      NW     S       E    NE      SE     S      SE    NE
Wind char        WY      BZ    LT      GN    GN      GN    GN      LT    LT
Avg clouds    SC FW FW   CL CL FW SC   B1 B1 SC SC   FW FW FW FW   FW FW SC
PoP 12hr         20       0     0      30    10       5     5      10    20
Rain shwrs     S                        C                              S
Tstms                                   S

$$
WYZ199-131000-
Sheridan-Sheridan WY
44.80N 106.96W Elev. 4019 ft
1247 AM MDT Sat Sep 12 2026

Date           09/11/26      Sat 09/12/26            Sun 09/13/26            Mon
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      43          71          41          81          46
Temp                      44 43 49 62 69 69 56 48 43 41 48 67 78 79 65 57 51 46
Dewpt                     44 43 45 40 38 40 43 43 42 41 42 42 40 42 49 49 45 44
RH                       100100 86 44 32 35 62 83 96100 80 40 26 27 56 75 80 93
Wind dir                  NE  E SE  E NE NE NE NE  N  E  E SE SE SE  S SW NW NW
Wind spd                   2  3 10  9  5  6  4  4  4  1  6 13 10  8 12  8 14 14
Wind gust                                               17    21          27
Clouds                    B1 B1 SC SC SC SC B2 B1 SC B1 SC FW SC FW SC B1 B1 SC
PoP 12hr                     20           0           5           5          30
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                        S  S  C  C
Obvis                      F                       F PF


Date           09/14/26  Tue 09/15/26  Wed 09/16/26  Thu 09/17/26  Fri 09/18/26
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          71      37    73      40    70      39    78      43    79
Temp          65 67 45   38 65 71 48   41 63 67 46   41 70 76 50   44 73 76
Dewpt         31 28 36   34 34 36 38   38 42 41 41   39 41 40 39   36 39 39
PWind dir        NW       W    SE       W    NW      SE     E      SW    NE
Wind char        GN      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW CL CL   FW FW FW FW   SC SC SC FW   FW FW CL FW   FW SC SC
PoP 12hr          0       0     0       5     5       5     5      20    20
Rain shwrs                                                          S  S  S

$$