Point Forecast Matrices
Issued by NWS Billings, MT

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FOUS55 KBYZ 061325
PFMBYZ

Point Forecast Matrices
National Weather Service Billings MT
625 AM MST Sat Dec 6 2025

MTZ235-062300-
Billings-Yellowstone MT
45.81N 108.53W Elev. 3648 ft
625 AM MST Sat Dec 6 2025

Date                Sat 12/06/25            Sun 12/07/25            Mon 12/08/25
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      37          22          41          30          45
Temp                33 33 32 27 25 26 26 31 30 38 41 37 33 34 34 34 35 41 45 43
Dewpt               33 32 29 20 20 22 18 21 24 29 29 27 24 24 24 24 25 28 29 28
RH                 100 96 88 74 81 85 71 66 78 70 62 67 69 66 66 66 66 59 53 55
Wind dir             W NE NE  E  E  W SW  W  W  W  W SW SW SW SW SW SW SW  W SW
Wind spd            13  9  9  5  6 10 17 21 20 14 11 10 12 14 18 18 18 14 13 11
Clouds              OV OV B2 B2 OV B2 B1 B1 SC B1 B1 B2 B2 B2 SC SC SC B1 B2 B2
PoP 12hr                     60          40           0           5           0
QPF 12hr                   0.06        0.01           0           0           0
Snow 12hr                     T       00-00       00-00
Rain shwrs
Snowshwrs            L  L  C  C  S
Wind chill                            13 18 18                23    24
Min chill              23    20    16    13    17    30    24    23    23


Date               Tue 12/09/25  Wed 12/10/25  Thu 12/11/25  Fri 12/12/25
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            40    50      32    47      28    33      16    31
Temp          43   47 48 43 35   36 42 44 38   30 30 28 20   18 24 26
Dewpt         29   33 36 28 27   29 36 34 30   24 22 19 15   13 19 19
PWind dir          SW     W       W     W      NW    NW      NE    SE
Wind char          BZ    WY      BZ    GN      GN    GN      GN    GN
Avg clouds    OV   OV B2 B2 B2   B2 OV B2 B2   B2 B2 B2 B2   B2 OV B2
PoP 12hr           10    50      50    60      50    50      40    30
Rain shwrs             C  C  C    C  L  L  C    C  C  C
Snowshwrs                            S     C    C  C  C  C    C  C  C

$$
MTZ065-062300-
Livingston-Park MT
45.70N 110.47W Elev. 4656 ft
625 AM MST Sat Dec 6 2025

Date                Sat 12/06/25            Sun 12/07/25            Mon 12/08/25
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      40          27          41          32          47
Temp                35 37 38 36 34 32 29 31 31 37 40 38 36 36 35 37 37 42 46 46
Dewpt               34 31 30 24 23 21 17 20 21 23 24 22 22 24 24 25 25 28 30 29
RH                  96 79 73 61 64 63 60 63 66 56 52 52 56 61 64 61 61 57 53 51
Wind dir            SW  W  W SW SW SW SW SW  W SW SW SW SW SW SW  W  W SW SW SW
Wind spd            28 26 18 17 19 23 29 29 25 21 18 18 26 32 39 32 29 25 24 25
Wind gust           40 36       34 35 41 41       29    36 44 55 44 41 35 34 35
Clouds              B2 B2 B2 B2 B2 SC SC SC SC SC SC B2 B2 B1 B1 B1 B1 B2 B2 B2
PoP 12hr                     70          50           5          30          10
QPF 12hr                   0.03        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 C                                                  S
Snowshwrs            C  C  C  C                       C  C
Wind chill          22 25       23 19 13 17 18          24 23 21 24 24
Min chill              21    26    19    13    16    28    23    21    23


Date               Tue 12/09/25  Wed 12/10/25  Thu 12/11/25  Fri 12/12/25
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            42    50      34    50      31    43      23    45
Temp          47   49 48 42 36   40 47 46 41   37 36 35 27   25 37 40
Dewpt         31   33 35 28 27   33 36 33 31   28 27 22 19   19 26 25
PWind dir          SW    SW       W     W      SW     W      SW    SW
Wind char          VW    VW      BZ    BZ      BZ    BZ      GN    GN
Avg clouds    B2   B2 OV B2 B2   OV OV B2 B2   B2 B2 B2 B1   B2 B2 B1
PoP 12hr           30    70      60    70      60    50      30    30
Rain shwrs     S    C  L  L  C    L  L  L  C    L  C  C  C    C  C  S
Snowshwrs                    S    L  L          L  C  C  C    C  C  S

$$
MTZ032-062300-
Miles City-Custer MT
46.42N 105.90W Elev. 2628 ft
625 AM MST Sat Dec 6 2025

Date                Sat 12/06/25            Sun 12/07/25            Mon 12/08/25
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      25          10          35          22          42
Temp                23 20 18 14 11 12 12 16 21 32 34 27 24 25 28 30 34 39 42 37
Dewpt               23 19 16 12 10 11 11 15 20 27 28 24 21 22 24 26 29 31 32 33
RH                 100 96 92 92 96 96 96 96 96 81 78 88 88 88 85 85 82 73 67 85
Wind dir             N  N  N NE NE  E  E  E  W  W  W SW  S SW SW  W  W  W  W  W
Wind spd            10 11 10  5  5  5  5  5  9 10  9  5  5  8 11 14 14 14 14 10
Clouds              OV OV B2 B2 OV OV OV B2 B1 FW FW B1 B1 B2 B1 SC SC B1 B1 B2
PoP 12hr                     80          60           5           5           0
QPF 12hr                   0.06        0.04           0           0           0
Snow 12hr                     1           1       00-00
Snow                                L  C
Snowshwrs            L  C  S     S
Wind chill          12  8  6                                     19
Min chill               8     5     1     3     9    21    16    17    21    30


Date               Tue 12/09/25  Wed 12/10/25  Thu 12/11/25  Fri 12/12/25
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            32    46      24    38      19    23       8    21
Temp          35   40 44 36 28   27 34 33 29   21 21 18 12    9 13 19
Dewpt         32   36 38 29 26   26 32 31 27   18 17 13  9    5  9 15
PWind dir          SW     W       W    SW       W    NW       N    NE
Wind char          GN    BZ      GN    LT      GN    GN      LT    LT
Avg clouds    B2   OV OV B1 B1   B1 OV B2 B2   B2 B2 B2 B2   B2 OV B2
PoP 12hr           30    40      30    40      50    30      30    30
Rain shwrs          C  C  C  S       C  C  C    C  C
Snowshwrs                    S    C  C  C  C    C  C  C  C    C  S  C

$$
MTZ033-062300-
Baker-Fallon MT
46.38N 104.24W Elev. 2969 ft
625 AM MST Sat Dec 6 2025

Date                Sat 12/06/25            Sun 12/07/25            Mon 12/08/25
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      22           4          33          17          41
Temp                20 18 16 10  7  7  7 14 20 29 32 24 21 22 24 29 32 38 40 35
Dewpt               20 16 13  8  6  5  6 12 19 25 26 21 18 18 20 23 27 30 29 30
RH                 100 92 88 91 96 91 96 92 96 85 78 88 88 84 84 78 81 73 64 82
Wind dir             E  E NE NE  E SE SE SE  S  W  W  W SW SW SW  W  W  W  W  W
Wind spd            11 13 11  8  5  6  8  9 10 13 13  8  6  9 11 14 17 20 19 14
Wind gust                                                              31 31
Clouds              OV OV OV OV B2 B2 OV OV B2 SC SC SC B1 B2 B1 B1 SC SC B1 B1
PoP 12hr                     90          60          60           0           0
QPF 12hr                   0.09        0.01        0.01           0           0
Snow 12hr                     1           T           T
Snow                                S  L  L  S
Snowshwrs            D  L  C  S
Wind chill           8  4  3 -1 -4 -5 -5  2  9 18          11 13 18 20
Min chill               4    -1    -5    -5     4    15    11    12    19    26


Date               Tue 12/09/25  Wed 12/10/25  Thu 12/11/25  Fri 12/12/25
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            27    45      17    36      14    23       3    20
Temp          32   37 43 34 22   23 33 30 26   17 20 16 10    6 13 14
Dewpt         29   34 36 27 21   22 28 28 25   16 17 13  8    4  9 10
PWind dir          SW     W      NW    SW       W    NW      NW     W
Wind char          GN    WY      BZ    GN      GN    GN      GN    GN
Avg clouds    B2   OV OV B2 B1   B1 B2 B2 B2   B2 B2 B2 B2   B1 B2 B2
PoP 12hr           20    40      20    30      50    20      20    20
Rain shwrs          S  C  S                C
Snowshwrs                         S  S  C  C    C  S  S  S    S     S

$$
WYZ199-062300-
Sheridan-Sheridan WY
44.80N 106.96W Elev. 4019 ft
625 AM MST Sat Dec 6 2025

Date                Sat 12/06/25            Sun 12/07/25            Mon 12/08/25
MST 3hrly     02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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                      39          19          43          20          48
Temp                34 39 36 30 24 22 21 24 26 39 42 33 26 25 25 27 28 42 47 39
Dewpt               33 33 27 27 24 22 20 21 23 25 23 23 19 18 19 22 22 29 29 28
RH                  96 79 69 88100100 96 88 88 57 46 66 74 74 78 81 78 60 49 64
Wind dir            NW NW NW NW NE  S  S  W  W NW NW  S SW SW SW SW SW  W  W SW
Wind spd            13 18 14  5  3  3  5 10 13 13  9  6  8 10 11 11 13  9  9 10
Clouds              B2 B2 B2 B2 B2 B2 B2 B1 SC SC SC B1 B1 B1 B1 SC SC SC B1 B2
PoP 12hr                     60          40           5           0           0
QPF 12hr                   0.02        0.01           0           0           0
Snow 12hr                 00-00           T       00-00
Rain shwrs           C
Snowshwrs            C  C  C  C  C
Wind chill                                  15                14    16
Min chill              24    24    18    14    13    27    15    14    16


Date               Tue 12/09/25  Wed 12/10/25  Thu 12/11/25  Fri 12/12/25
MST 6hrly     23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Min/Max            29    51      26    47      25    36      15    36
Temp          33   38 49 37 28   29 41 39 33   28 31 27 18   15 28 28
Dewpt         26   30 37 29 24   26 35 33 29   26 27 21 17   15 22 21
PWind dir          SW     W      NW     W      NW    NW      NW     E
Wind char          GN    BZ      GN    GN      GN    GN      LT    LT
Avg clouds    B2   OV B2 B2 B2   B2 B2 B2 B2   B2 B2 B2 B2   B2 B2 B1
PoP 12hr            5    50      60    50      60    50      40    20
Rain shwrs             S  C  L       C  C  L    C  C  C
Snowshwrs                    L    C  C     S    C  C  C  C    C  S

$$