Point Forecast Matrices
Issued by NWS Billings, MT

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Point Forecast Matrices
National Weather Service Billings MT
401 AM MDT Sun Aug 30 2026

MTZ235-302200-
Billings-Yellowstone MT
45.81N 108.53W Elev. 3648 ft
401 AM MDT Sun Aug 30 2026

Date             Sun 08/30/26            Mon 08/31/26            Tue 09/01/26
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                      75          50          81          54          84
Temp             60 61 64 71 73 64 58 54 51 57 70 79 80 69 62 57 54 60 72 82 83
Dewpt            51 51 52 47 42 43 43 42 41 40 40 37 38 39 38 39 39 42 45 44 45
RH               72 70 65 42 33 46 57 64 68 53 33 22 22 33 41 51 57 51 38 26 26
Wind dir          W NW NW  W NW  N NW  W SW SW SW SE  E  E  E  N  W  W  W  S SE
Wind spd          6  6  9  8 10  4  4  5  5  4  3  4  5  6  6  4  4  4  3  5  6
Clouds           B1 B1 B2 FW FW FW FW FW SC FW CL FW FW SC SC SC B1 B1 SC SC SC
PoP 12hr                     60           0           0           0           5
QPF 12hr                   0.10           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  C  C
Tstms             S  S  S


Date               Wed 09/02/26  Thu 09/03/26  Fri 09/04/26  Sat 09/05/26
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            57    88      58    87      56    85      57    81
Temp          65   57 82 83 65   58 79 84 65   57 77 83 65   58 74 79
Dewpt         47   47 48 39 41   41 42 37 42   43 45 41 43   44 47 44
PWind dir           S    SW       W    SW       W     S       N     N
Wind char          LT    GN      GN    LT      GN    LT      GN    LT
Avg clouds    B1   SC SC FW B1   SC SC FW SC   SC SC FW SC   SC SC FW
PoP 12hr           10     5       5     5      10     5      10    10

$$
MTZ065-302200-
Livingston-Park MT
45.70N 110.47W Elev. 4656 ft
401 AM MDT Sun Aug 30 2026

Date             Sun 08/30/26            Mon 08/31/26            Tue 09/01/26
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                      73          40          80          45          81
Temp             48 50 61 71 70 57 52 46 42 51 71 80 78 61 55 49 46 55 73 80 77
Dewpt            48 47 43 34 31 31 33 32 30 31 33 30 31 35 35 35 37 41 46 43 43
RH              100 89 51 26 23 37 48 58 62 46 25 16 18 38 47 58 71 59 38 27 30
Wind dir          W  W  W  W  W  W  W  W  W  W  W  W  N SE  S SW SW SW SW SW SW
Wind spd         10 12 13 20 19  9  8  9  9  6  5  5  4  4  4  3  4  4  5  5  8
Wind gust              24 33 31
Clouds           B1 B2 SC FW CL FW FW FW SC FW CL FW FW FW SC SC B1 B1 SC SC SC
PoP 12hr                     70           0           0           0          20
QPF 12hr                   0.14           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs        C  C  S                                               S  S  C
Tstms             S  S  S                                               S  S  S
Obvis            PF              K


Date               Wed 09/02/26  Thu 09/03/26  Fri 09/04/26  Sat 09/05/26
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            47    81      45    80      44    80      46    78
Temp          57   48 74 75 57   46 73 76 56   45 71 76 57   46 70 74
Dewpt         46   43 42 34 37   38 37 33 38   40 41 36 40   41 43 40
PWind dir          SW    SW      SW    SW      SW    SW      SE     E
Wind char          GN    GN      GN    GN      GN    LT      GN    LT
Avg clouds    B1   SC SC SC SC   SC SC FW SC   SC SC FW SC   SC SC SC
PoP 12hr           30    10       5     5      10    10      20    20
Rain shwrs     C                                         S       S  S
Tstms          S                                                    S

$$
MTZ032-302200-
Miles City-Custer MT
46.42N 105.90W Elev. 2628 ft
401 AM MDT Sun Aug 30 2026

Date             Sun 08/30/26            Mon 08/31/26            Tue 09/01/26
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          81          51          85
Temp             59 65 71 71 71 61 56 51 49 59 72 78 80 65 59 54 52 61 77 84 81
Dewpt            53 54 54 50 47 45 44 42 42 41 38 36 38 39 38 38 38 40 47 51 52
RH               80 68 55 47 42 56 64 71 77 51 29 22 22 38 45 54 59 46 35 32 37
Wind dir          W  W NW  W  W  W  W  W SW  W  W  W  W NE  E  E  E  E SE SE SE
Wind spd          5  9 14 16 10  4  4  4  5  6 10  9  4  4  4  4  4  5 10 11 12
Wind gust                                         19
Clouds           SC SC B1 B1 CL FW FW FW SC CL CL FW FW SC SC SC B1 B1 B1 SC SC
PoP 12hr                     60           0           0           0           5
QPF 12hr                   0.04           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  C
Tstms                   S


Date               Wed 09/02/26  Thu 09/03/26  Fri 09/04/26  Sat 09/05/26
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            56    90      57    88      57    88      59    83
Temp          64   56 82 86 66   57 80 86 66   57 80 85 67   59 76 80
Dewpt         55   54 56 45 50   49 47 42 47   48 47 45 48   48 49 47
PWind dir          SE    SE      SW    SW      NE     N      NE     N
Wind char          GN    LT      LT    LT      GN    LT      GN    GN
Avg clouds    SC   SC FW FW SC   SC SC FW FW   SC FW FW SC   SC SC FW
PoP 12hr           10     5      20     5       5     5      10     5
Rain shwrs                   S
Tstms                        S

$$
MTZ033-302200-
Baker-Fallon MT
46.38N 104.24W Elev. 2969 ft
401 AM MDT Sun Aug 30 2026

Date             Sun 08/30/26            Mon 08/31/26            Tue 09/01/26
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                      82          44          82          47          84
Temp             55 68 77 75 71 58 54 50 46 61 75 79 78 62 58 53 49 64 79 82 78
Dewpt            52 55 54 56 50 44 43 41 38 38 36 35 34 34 35 35 33 38 45 51 52
RH               90 63 45 52 47 59 66 71 73 42 24 20 20 35 42 50 54 38 30 34 40
Wind dir          S  W  W NW NW  W SW SW  W  W  W  W  W NW  N  E  E  E SE SE SE
Wind spd          6  8 13 20 17  8  4  6  6 12 17 16 10  3  0  4  5 10 14 16 17
Wind gust                 31 27             23 27 27 20                   26
Clouds           B1 SC B1 B2 SC FW FW FW FW CL FW FW FW SC SC SC B1 SC B1 B1 B1
PoP 12hr                     60           5           0           0          20
QPF 12hr                   0.07           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  L                                            S  S  C
Tstms                   C  C                                               S  S


Date               Wed 09/02/26  Thu 09/03/26  Fri 09/04/26  Sat 09/05/26
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            51    89      54    89      54    89      55    85
Temp          61   53 81 83 64   57 83 85 65   57 83 86 66   58 80 81
Dewpt         54   51 56 49 51   47 45 41 47   47 47 44 49   47 48 45
PWind dir          SE    SE       S    SW      SE    SE       E    NW
Wind char          GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    B1   SC SC FW SC   SC FW FW FW   FW FW FW FW   SC SC SC
PoP 12hr           40     5      20     5      10     5      10     5
Rain shwrs     C             S
Tstms          S             S

$$
WYZ199-302200-
Sheridan-Sheridan WY
44.80N 106.96W Elev. 4019 ft
401 AM MDT Sun Aug 30 2026

Date             Sun 08/30/26            Mon 08/31/26            Tue 09/01/26
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          44          82          48          83
Temp             53 62 71 73 72 59 53 48 45 56 72 80 80 64 56 52 49 60 75 82 80
Dewpt            50 50 49 47 45 46 43 39 36 36 39 38 39 40 39 39 39 44 45 45 45
RH               89 65 46 40 38 62 69 71 70 47 30 22 23 41 53 61 68 55 34 27 29
Wind dir          W NW NW NW NW  W  S  W  W NE NE NE NE  S  S SW  N SE  E NE  E
Wind spd          2  5  9 12  5  3  2  2  1  1  2  3  3  3  2  1  0  1  2  3  3
Wind gust                 23
Clouds           SC B1 B1 FW CL FW FW FW SC FW CL FW FW SC SC B1 B2 B1 B1 SC SC
PoP 12hr                     50           0           0           5          20
QPF 12hr                   0.03           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  S                                      S  S  S  S
Tstms                   S  S                                            S  S
Obvis            PF


Date               Wed 09/02/26  Thu 09/03/26  Fri 09/04/26  Sat 09/05/26
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    88      49    88      50    87      51    83
Temp          58   50 83 83 59   50 81 85 60   51 80 84 60   52 77 80
Dewpt         45   43 41 37 40   39 37 35 39   41 41 39 41   42 43 43
PWind dir           S    SW      SW     S      SW     E       W     N
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   FW FW FW FW   FW SC FW FW   FW FW FW SC   SC SC SC
PoP 12hr            0     5       5     5       5    10      10    20
Rain shwrs                                                          S

$$