Point Forecast Matrices
Issued by NWS Glasgow, MT

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Point Forecast Matrices
National Weather Service Glasgow MT
202 PM MST Mon Dec 15 2025

MTZ017-161100-
Glasgow-Valley MT
48.22N 106.61W Elev. 2293 ft
202 PM MST Mon Dec 15 2025

Date          Mon 12/15/25      Tue 12/16/25            Wed 12/17/25         Thu
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                      33          41          24          42           0
Temp             38 39 39 39 38 36 36 35 30 28 29 29 31 34 41 40 30 16  9  8  5
Dewpt            33 34 35 33 33 31 32 31 27 25 26 26 28 31 36 29 21  8  2  1 -3
RH               82 82 85 79 82 82 85 85 88 88 88 88 88 89 82 64 69 70 72 72 69
Wind dir          S SW SW  W  W  W  W  W SW  S SW  S  S  S SW  W  W NW NW NW  N
Wind spd         17 21 21 26 31 28 18 13  8 10 14 14 16 21 28 40 40 37 29 20  8
Wind gust        32 35 33 41 47 42 31 25                   43 58 60 56 47 34
Clouds           B2 B1 OV SC SC FW FW FW B1 B1 B1 B2 B2 OV B2 B1 B2 B2 B2 B1 SC
PoP 12hr                     10           0          20          60          40
QPF 12hr                      0           0        0.01        0.08        0.03
Snow 12hr                 00-00       00-00       00-00
Frzg rain                                 S  S  S  S
Rain                                                  L  L  C
Snow                                            S              C  C  C
Obvis            BS BS                                           BS BS
Wind chill                28 26 23             18 18 20 22 30 28 13 -6-13-12 -9
Min chill        25    26    22    22    21    17    17    20    13   -14   -16
High Wind                                                   A  A  A  A  A  A


Date           12/18/25  Fri 12/19/25  Sat 12/20/25  Sun 12/21/25  Mon 12/22/25
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          26      15    38       4    21       5    21       3    20
Temp          11 23 24   32 36 27 15   10 16 19 16   11 18 19 12    9 18 18
Dewpt          4 16 20   27 31 20 11    5 11 14 12    8 15 14  8    5 11  9
PWind dir         E      SE     W      NW     W      SW     E       E     N
Wind char        GN      GN    BZ      GN    GN      GN    GN      GN    GN
Avg clouds    SC SC B2   B2 B2 B1 SC   B1 SC SC SC   SC SC SC B1   B2 B2 B1
PoP 12hr          0      40    30      10    10      10    10      20    30
Rain                         C  S
Snow                 C    C  C                                      S  C  S

$$
MTZ020-161100-
Wolf Point-Western Roosevelt MT
48.10N 105.58W Elev. 1985 ft
202 PM MST Mon Dec 15 2025

Date          Mon 12/15/25      Tue 12/16/25            Wed 12/17/25         Thu
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                      33          42          22          44          -1
Temp             37 37 38 39 38 38 38 36 29 27 28 29 29 33 42 41 33 18  9  7  4
Dewpt            32 32 34 35 34 32 32 30 26 23 25 26 27 30 35 29 22 10  2  0 -4
RH               82 82 85 85 85 79 79 79 88 85 88 88 92 89 76 62 63 70 72 72 68
Wind dir         SW  W  W  W  W  W  W  W SW SW SW SW  S  S SW  W  W NW NW NW  N
Wind spd         17 21 21 24 27 26 20 16  8 10 14 13 14 19 25 36 36 34 26 19  8
Wind gust        28 35 33 35 40 39 31 26                   37 52 56 50 41 31
Clouds           B2 B2 B2 B1 FW FW FW FW B1 B1 B1 B1 B2 OV B2 B1 B1 B2 B2 B1 SC
PoP 12hr                     10           0          20          60          50
QPF 12hr                      0           0           0        0.08        0.03
Snow 12hr                 00-00       00-00       00-00
Frzg rain                                 S  S        L
Rain                                                  L  L  C  C
Snow                                                              C  C  S  S
Obvis               BS BS BS                                     BS BS
Wind chill          26    28 26 26 27          17 18 18 21    29 18 -2-12-12 -9
Min chill        27    24    23    24    21    16    17    19    18   -13   -16
High Wind                                                   A  A  A  A  A  A


Date           12/18/25  Fri 12/19/25  Sat 12/20/25  Sun 12/21/25  Mon 12/22/25
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          23      11    38       3    20       3    22       1    20
Temp          11 20 20   30 36 28 15    9 16 18 14   10 19 17 11    7 17 15
Dewpt          1 13 15   25 30 21 10    4  9 12 10    7 13 13  7    4 10  8
PWind dir         E      SE    SW      NW     W      SW    NW      NE     N
Wind char        LT      GN    BZ      GN    LT      LT    GN      LT    LT
Avg clouds    SC SC B2   B2 B2 B1 B1   B1 SC SC SC   SC SC SC B1   B2 B2 B1
PoP 12hr          0      40    30      10    10      10    10      20    20
Rain                         C  S
Snow                 C    C  C                                 S    S  S  S

$$
MTZ022-161100-
Jordan-Garfield MT
47.33N 106.95W Elev. 2661 ft
202 PM MST Mon Dec 15 2025

Date          Mon 12/15/25      Tue 12/16/25            Wed 12/17/25         Thu
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                      37          44          27          47           7
Temp             40 41 41 41 41 39 41 41 34 32 32 34 35 39 46 43 34 22 15 13 11
Dewpt            34 34 35 34 34 31 33 33 29 28 27 30 30 32 36 28 21 15  9  7  4
RH               79 76 79 76 76 73 73 73 82 85 81 85 82 76 68 55 58 74 77 76 73
Wind dir         SW SW SW SW  W  W  W  W SW SW SW SW  S SW  W  W  W NW NW NW NW
Wind spd         17 21 19 21 23 24 18 14  8 10 12 13 16 21 27 39 35 34 25 16  5
Wind gust        32 34 33 37 41 41 32 27       24 25 28 35 43 57 56 51 43 32
Clouds           B2 B2 B2 SC SC FW FW FW B1 B1 B2 B2 OV B2 B1 B1 B1 B1 B2 B1 SC
PoP 12hr                     20           5          20          50          30
QPF 12hr                      0           0        0.01        0.04        0.01
Snow 12hr                 00-00       00-00       00-00
Rain              S                       S  S        C  C  C
Snow                                                           C  C  C
Wind chill                      28                            31 19  3 -5 -3
Min chill        31    28    29    28    27    22    23    26    18    -5    -7
High Wind                                                   A  A  A  A  A  A


Date           12/18/25  Fri 12/19/25  Sat 12/20/25  Sun 12/21/25  Mon 12/22/25
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          34      24    45      13    34      16    33      11    30
Temp          26 29 30   37 43 33 23   16 29 30 24   21 30 26 20   17 27 24
Dewpt         15 21 23   29 33 28 19   11 20 22 18   15 20 19 16   13 18 17
PWind dir         S       S     W      NW     W      SW    SW      SE     W
Wind char        LT      GN    GN      GN    LT      LT    GN      LT    LT
Avg clouds    SC B1 B2   B2 B2 B1 B1   B1 SC SC SC   SC SC SC B1   B2 B2 B1
PoP 12hr          5      40    40      20    20      10    10      20    30
Rain                      C  C  C
Snow                 C    C     C  S    S  S                        S  C  S

$$
MTZ024-161100-
Sidney-Richland MT
47.70N 104.20W Elev. 1985 ft
202 PM MST Mon Dec 15 2025

Date          Mon 12/15/25      Tue 12/16/25            Wed 12/17/25         Thu
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                      36          44          25          46           1
Temp             39 38 40 39 41 39 40 38 31 27 30 30 31 33 44 44 37 24 11  8  5
Dewpt            34 34 35 35 36 34 34 32 28 25 27 28 29 30 38 34 26 18  5  1 -3
RH               82 85 82 85 82 82 79 79 88 92 88 92 92 89 79 68 64 77 76 72 69
Wind dir         SW SW SW SW  W  W  W  W SW SW SW SW  S  S SW  W  W  W NW NW NW
Wind spd         17 19 20 21 25 27 24 17  8  8 13 14 13 17 24 33 33 35 32 25 11
Wind gust        28 31 32 34 40 42 39 29             24 27 37 50 52 54 51 39
Clouds           B1 B2 B2 B2 SC SC CL FW B1 B2 B1 B1 B2 B2 B2 B1 B1 B1 B2 B2 SC
PoP 12hr                      5           0           5          50          50
QPF 12hr                      0           0           0        0.04        0.06
Snow 12hr                 00-00       00-00       00-00
Frzg rain                                             C
Rain                                                     C  C  C
Snow                                                              C  C  C  C
Obvis                                                               BS
Wind chill                      27 29          19       22       24  6-11-13-11
Min chill        28    28    27    27    24    18    19    20    22   -12   -17
High Wind                                                   A  A  A  A  A  A


Date           12/18/25  Fri 12/19/25  Sat 12/20/25  Sun 12/21/25  Mon 12/22/25
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          23      11    43       7    25       6    27       5    25
Temp          10 20 20   30 40 32 20   13 19 20 17   13 23 21 15   12 21 20
Dewpt          1 12 14   25 34 26 15    9 12 15 14    9 17 18 12    9 15 14
PWind dir        SW      SE    SW      NW     W      SW     W       E    SW
Wind char        GN      GN    BZ      GN    LT      LT    LT      LT    LT
Avg clouds    SC SC B2   B2 B2 B1 B1   B1 B1 SC SC   SC SC SC B1   B2 B2 B1
PoP 12hr          0      20    20      10     5      10    10      10    20
Rain                         S  S
Snow                      S  S                                            S

$$
MTZ025-161100-
Glendive-Dawson MT
47.13N 104.80W Elev. 2457 ft
202 PM MST Mon Dec 15 2025

Date          Mon 12/15/25      Tue 12/16/25            Wed 12/17/25         Thu
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                      37          44          27          46           6
Temp             38 38 39 40 41 40 40 40 32 29 30 30 31 34 44 45 37 27 14 10  9
Dewpt            32 32 34 35 35 35 35 34 29 26 27 28 29 31 39 34 24 20  8  3  2
RH               79 79 82 82 79 82 82 79 88 88 88 92 92 89 82 65 59 74 76 73 72
Wind dir         SW SW SW SW  W  W  W  W SW SW SW SW  S  S SW  W  W  W NW NW NW
Wind spd         16 19 20 21 24 26 21 17  6  9 13 12 13 17 21 33 34 35 33 25 10
Wind gust        27 29    33 35 37 33 27                   32 48 51 52 50 37
Clouds           B1 B2 B1 B2 SC SC FW FW B1 B1 SC SC B1 B2 B2 B1 B1 B1 B2 B1 SC
PoP 12hr                      5           0           5          40          40
QPF 12hr                      0           0           0        0.02        0.01
Snow 12hr                 00-00       00-00       00-00
Rain                                                  C  C  C  C
Snow                                                           C  C  C  C  C
Wind chill          27    29 30 29             19       23       24  9 -8-11 -5
Min chill        27    27    28    29    25    18    19    21    23    -8   -12
High Wind                                                   A  A  A  A  A  A


Date           12/18/25  Fri 12/19/25  Sat 12/20/25  Sun 12/21/25  Mon 12/22/25
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          28      18    43      12    32      13    32      11    29
Temp          14 25 25   33 41 35 24   16 25 26 22   18 28 27 19   16 25 25
Dewpt          7 18 19   27 34 29 20   13 19 21 18   16 23 23 16   14 19 19
PWind dir        SW       S    SW      NW     W      SW    SW       E     W
Wind char        LT      GN    GN      GN    LT      LT    GN      LT    LT
Avg clouds    SC SC B2   B2 B2 B2 B2   B1 B1 SC SC   SC SC SC B1   B2 B2 B2
PoP 12hr          0      20    30      20    10      10     5      10    10
Rain                         C  S  S
Snow                      S        S

$$