Point Forecast Matrices
Issued by NWS Billings, MT

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Point Forecast Matrices
National Weather Service Billings MT
425 PM MST Wed Dec 3 2025

MTZ235-041100-
Billings-Yellowstone MT
45.81N 108.53W Elev. 3648 ft
425 PM MST Wed Dec 3 2025

Date          Wed 12/03/25      Thu 12/04/25            Fri 12/05/25         Sat
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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                      21          37          27          36          20
Temp             23 21 22 24 25 23 31 36 36 34 33 31 30 27 32 36 33 32 31 28 24
Dewpt            17 13 15 16 17 16 23 28 28 27 26 26 26 24 31 34 31 30 28 26 20
RH               77 71 74 71 71 74 72 72 72 75 75 81 85 88 96 92 92 92 88 92 84
Wind dir         SW SW SW  W SW SW  W  W  W  W  W  W  W  W  W SW  S  S  S  W NW
Wind spd          5 11 13 14 16 17 14 14 12 13 12 13 12 10  9  8  9 10 13 13 12
Wind gust              24          27 27 23
Clouds           SC SC SC B1 B2 B1 B1 OV OV OV OV B2 B2 B1 B1 B2 OV OV OV OV OV
PoP 12hr                      5          30          30          30          60
QPF 12hr                      0           0           0        0.03        0.14
Snow 12hr                 00-00       00-00       00-00
Rain                                            S
Snow                                   S  C  S  S  S  S  S  C  C  L  L  L  L  C
Obvis                                                   PF PF
Wind chill           9 10 11 12 10 20                                  20 17 12
Min chill        16     9    11    10    22    23    20    17    26    20    12


Date           12/06/25  Sun 12/07/25  Mon 12/08/25  Tue 12/09/25  Wed 12/10/25
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          29      18    39      29    43      31    48      32    42
Temp          22 25 21   25 33 34 34   34 37 39 32   34 41 45 40   35 37 42
Dewpt         19 20 16   18 27 25 26   25 30 30 25   26 33 33 30   28 31 34
PWind dir         N      SW    SW      SW     W      SW    SW       W     W
Wind char        GN      GN    GN      GN    BZ      GN    BZ      BZ    GN
Avg clouds    OV B2 B2   B1 SC B1 B2   B1 B1 SC B1   B2 B2 B2 B1   B2 B2 B1
PoP 12hr         40      10     5      10     5      10    30      40    40
Rain                                                        C  C    C  C  C
Snow           C  C  S                                      C  C    C  C  C

$$
MTZ065-041100-
Livingston-Park MT
45.70N 110.47W Elev. 4656 ft
425 PM MST Wed Dec 3 2025

Date          Wed 12/03/25      Thu 12/04/25            Fri 12/05/25         Sat
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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                      21          37          26          38          25
Temp             27 22 22 24 23 23 31 35 35 32 30 28 28 26 34 38 36 32 32 29 27
Dewpt            17 13 12 13 12 13 19 25 24 23 22 21 21 20 24 27 25 22 23 20 21
RH               65 68 65 62 62 65 61 66 64 69 72 75 75 78 66 64 64 66 69 69 78
Wind dir          W  W  W  W  W  W  W  W SW SW SW  W  W  W  W  W SW SW SW  W  W
Wind spd         13 20 26 29 31 28 28 26 23 20 25 24 20 17 13 14 14 18 18 18 17
Wind gust           32 46 50 52 48 46 43 41 39 37 42 36 31    25    28
Clouds           SC SC B1 B1 B1 B1 B2 OV B2 B2 B2 B2 B2 B2 OV B2 OV OV OV OV OV
PoP 12hr                      5          50          50          50          70
QPF 12hr                      0           0        0.02        0.03        0.11
Snow 12hr                 00-00       00-00           T
Snow                                C  C  C  S  S  S        C  C  L  L  L  L  C
Wind chill       15  7  6  7  5  5 16 23 23 19 16 13 14 13          20 20 17 15
Min chill        15     5     5     5    20    16    13    12    27    19    15


Date           12/06/25  Sun 12/07/25  Mon 12/08/25  Tue 12/09/25  Wed 12/10/25
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          38      23    41      30    46      33    51      33    44
Temp          29 36 29   25 34 34 30   32 40 40 34   38 47 47 39   33 38 44
Dewpt         23 26 20   16 23 20 19   21 27 25 22   26 32 30 27   25 29 32
PWind dir         W       W    SW      SW    SW      SW    SW       W    SW
Wind char        GN      BZ    BZ      BZ    BZ      BZ    WY      WY    BZ
Avg clouds    OV B2 B2   B1 B1 B1 B2   B2 B1 SC B1   B2 B2 B1 B2   B2 B2 B2
PoP 12hr         50      20    10      20     5      20    30      40    40
Rain                               S    S             S  C  C  C    C  C  C
Snow           C  C  S    S        S    S             S  C     C    C  C  C

$$
MTZ032-041100-
Miles City-Custer MT
46.42N 105.90W Elev. 2628 ft
425 PM MST Wed Dec 3 2025

Date          Wed 12/03/25      Thu 12/04/25            Fri 12/05/25         Sat
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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                      10          35          25          33          12
Temp             13 10 11 13 19 23 31 35 30 31 30 29 28 25 32 32 24 21 21 19 16
Dewpt             8  7  9 10 15 19 26 29 28 30 29 28 26 24 29 28 21 20 19 18 14
RH               80 87 91 87 84 84 81 78 92 96 96 96 92 96 88 85 88 96 92 96 92
Wind dir         SE  S  S SW  W  W  W  W  W  W  W  W  W  W NW NW  N  E  E NE NE
Wind spd          5  5  5  8 11 12 13 12 10 12 11 11 11 10 10  8  5  5  8 10 10
Wind gust                       26       20    24 21
Clouds           SC SC SC B1 OV B2 B1 B1 OV OV OV B2 B2 B2 B1 B1 B2 OV OV OV OV
PoP 12hr                      0          30          40          10          60
QPF 12hr                      0           0        0.01           0        0.05
Snow 12hr                 00-00       00-00       00-00
Rain                                      C  C
Snow                                      C  C                    C  C  L  L  S
Obvis            PF PF PF PF             PF PF PF PF PF PF PF PF
Wind chill                 1  6 11                   17                    8  3
Min chill         3     0     1     7    21    20    17    15    17    11     3


Date           12/06/25  Sun 12/07/25  Mon 12/08/25  Tue 12/09/25  Wed 12/10/25
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          21       8    32      22    41      27    46      25    38
Temp          15 16 11    9 25 22 24   29 36 33 29   28 40 42 34   26 32 38
Dewpt         13 14  9    8 22 18 22   26 33 29 27   25 34 33 32   25 28 31
PWind dir        NE       E    SW      SW     W       W     W      NW     W
Wind char        GN      LT    LT      GN    GN      GN    GN      GN    GN
Avg clouds    OV B2 B2   B2 B1 SC B1   B2 B1 SC B1   B2 OV B2 B2   B2 B2 B2
PoP 12hr         20      30     5      10     5      10    30      40    30
Rain                                    S                S  C  C    C  C  C
Snow           S     C    C             S                S  S  C    C  C  C

$$
MTZ033-041100-
Baker-Fallon MT
46.38N 104.24W Elev. 2969 ft
425 PM MST Wed Dec 3 2025

Date          Wed 12/03/25      Thu 12/04/25            Fri 12/05/25         Sat
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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                       5          34          21          32           7
Temp              7  5 11 15 18 21 30 33 27 23 27 25 23 21 30 31 25 18 15 13 10
Dewpt             3  3  8 12 14 17 25 27 24 23 26 24 22 21 27 26 22 18 15 13  9
RH               83 91 87 88 84 84 81 78 88100 96 96 96100 88 81 88100100100 96
Wind dir          S  S  S SW SW  W  W  W  W  W  W  W  W  W  W NW NW  N  E  E  E
Wind spd          5  8  9 11 14 17 18 16 13 12 12 13 14 14 16 12  6  5  6  9 10
Wind gust                    27 35 28    24    23 25
Clouds           FW SC B1 SC B2 B2 SC B1 B2 OV OV B2 B2 B2 B1 B2 OV OV OV OV OV
PoP 12hr                      5          20          40          10          40
QPF 12hr                      0           0        0.02        0.01        0.03
Snow 12hr                 00-00       00-00           T
Snow                                      C  C  C  C              S  S  C  C  C
Obvis            PF PF PF       BS          PF
Wind chill          -8 -2  2  4  6 18 22 15 11 16 13 10  8 19              1 -4
Min chill        -3    -8    -1     4    15    11    10     8    16     5    -4


Date           12/06/25  Sun 12/07/25  Mon 12/08/25  Tue 12/09/25  Wed 12/10/25
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          20       3    30      17    39      24    43      20    33
Temp          15 13  5    6 24 19 22   25 36 32 26   24 39 38 28   22 29 33
Dewpt         12 10  4    5 21 16 19   22 31 28 23   22 31 31 26   21 24 25
PWind dir         E      SE    SW      SW     W       W     W      NW     W
Wind char        GN      LT    GN      GN    BZ      GN    BZ      BZ    GN
Avg clouds    OV B2 B2   B2 B1 B1 B1   B2 B1 SC B1   B2 OV B2 B2   B2 B2 B2
PoP 12hr         30      30     5      20     5      10    30      40    20
Rain                                                     S  C  C    C
Snow           C          C                              S  C  C    C  S  S

$$
WYZ199-041100-
Sheridan-Sheridan WY
44.80N 106.96W Elev. 4019 ft
425 PM MST Wed Dec 3 2025

Date          Wed 12/03/25      Thu 12/04/25            Fri 12/05/25         Sat
MST 3hrly     14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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                      13          40          21          37          17
Temp             19 14 14 13 15 18 34 40 31 27 27 24 23 22 33 36 27 22 21 18 17
Dewpt            13  9  8  7  8 12 23 27 23 23 23 23 22 21 26 26 23 20 19 18 17
RH               77 80 76 76 73 77 64 59 72 85 85 96 96 96 75 67 85 92 92100100
Wind dir          S  S  S  S SW  W NW  N  S  W  W  W  W NW NW NW  S  S  S  W NW
Wind spd          4  5  6  5  5  5  5  5  5  9 10 10 10  9  9  6  4  5  5  9 10
Clouds           FW FW SC B1 B1 OV B1 B1 OV OV B2 B2 B2 B2 B1 B1 B2 B2 OV OV OV
PoP 12hr                      0          40          50          20          60
QPF 12hr                      0           0        0.01        0.02        0.05
Snow 12hr                 00-00       00-00       00-00
Snow                                      C  C  C  C        S  S  C  C  L  L  C
Obvis            PF                               PF PF PF
Wind chill                                           12                    7  5
Min chill        13     3     3     7    25    17    12    10    21    14     5


Date           12/06/25  Sun 12/07/25  Mon 12/08/25  Tue 12/09/25  Wed 12/10/25
MST 6hrly     11 17 23   05 11 17 23   05 11 17 23   05 11 17 23   05 11 17
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          33      17    41      23    46      26    51      27    43
Temp          28 26 19   19 35 29 25   24 40 34 27   30 45 44 35   28 39 43
Dewpt         24 22 17   15 25 19 19   18 29 24 20   22 32 30 26   24 29 29
PWind dir        NW       W    SW      SW     W      SW     W       W    NW
Wind char        GN      LT    LT      GN    GN      GN    GN      GN    GN
Avg clouds    OV B2 B2   B2 B1 SC B1   B1 B1 SC SC   B1 B2 B1 B1   B1 B2 B1
PoP 12hr         40      20     5      10     5       5    20      40    40
Rain                                                        S  C    C  C  C
Snow           C  S  C    S                                    C    C  C  S

$$