Point Forecast Matrices
Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
309 AM MDT Mon Jul 14 2025

MTZ312-142215-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
309 AM MDT Mon Jul 14 2025

Date             Mon 07/14/25            Tue 07/15/25            Wed 07/16/25
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                      91          53          57          49          68
Temp             61 73 85 89 86 71 60 57 55 53 54 56 55 53 52 51 50 52 57 64 67
Dewpt            45 47 48 48 51 54 53 53 52 51 52 51 48 48 48 47 47 49 50 50 49
RH               56 40 28 24 30 55 78 86 90 93 93 83 77 83 86 86 89 89 77 60 52
Wind dir         SW  W  W  W  N  N  N  N NE NE NE NE NE NE  N  N NE NE  E  E  E
Wind spd          8 10 13 16 19 24 23 19 21 21 21 21 18 17 14 12 10  9  8  8  9
Wind gust                    29 35                32
Clouds           CL CL FW FW B1 B2 OV OV OV OV OV OV OV OV OV OV B2 B2 B2 B1 SC
PoP 12hr                     10          80          90          70          30
QPF 12hr                      0        0.23        0.48        0.22        0.07
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                    C  L  D  D  D  D  D  D  L  L  C  C  C  C
Tstms                         C  C  S     S  S  C  C  C


Date               Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
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            48    78      52    79      53    85      56    86
Temp          54   49 69 77 60   53 68 78 61   54 77 83 64   57 79 84
Dewpt         48   44 49 50 51   48 51 50 50   46 48 44 46   44 45 41
PWind dir          SE    SE       N    NW       E    SW       W     W
Wind char          LT    LT      GN    LT      GN    LT      GN    LT
Avg clouds    FW   FW FW FW SC   FW SC SC FW   FW FW SC SC   SC SC FW
PoP 12hr            0    10      10     5       5     5       5    10

$$
MTZ303-142215-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
309 AM MDT Mon Jul 14 2025

Date             Mon 07/14/25            Tue 07/15/25            Wed 07/16/25
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                      74          48          53          44          65
Temp             56 62 70 73 68 56 52 51 50 50 50 52 51 50 48 46 44 50 56 61 64
Dewpt            53 56 57 57 59 54 52 51 50 49 49 49 47 48 46 45 44 46 48 50 51
RH               90 81 63 57 73 93100100100 96 96 89 86 93 93 96100 86 74 67 63
Wind dir          N  N  N  N  N  N  N  N NE  N NE NE NE NE  N  N NE SE SE SE SE
Wind spd          6  9 12 18 26 26 24 21 20 20 20 18 13 10  6  5  4  8 12 13 13
Wind gust                    39 39 34    31 31 31 28
Clouds           SC B1 SC B1 B2 OV OV OV OV OV OV OV OV OV B2 B1 B1 SC B1 B1 SC
PoP 12hr                     40          90          80          40          10
QPF 12hr                   0.02        0.44        0.45        0.08           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 C  L  D  D  D  D  D  L  L  C  C  S  S
Tstms                      C  C                       S


Date               Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
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            45    72      48    73      49    80      51    79
Temp          52   46 64 70 54   49 64 72 57   50 73 76 59   52 72 76
Dewpt         49   45 51 53 52   48 51 50 50   46 48 47 48   45 46 44
PWind dir          SE     E       N     N      SE    SW       W     W
Wind char          GN    GN      GN    LT      LT    GN      GN    GN
Avg clouds    SC   SC SC SC SC   SC SC SC SC   SC SC SC B1   B1 SC SC
PoP 12hr            5    20      20     5       5     5       5    10
Rain shwrs                S  S
Tstms                        S

$$
MTZ319-142215-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
309 AM MDT Mon Jul 14 2025

Date             Mon 07/14/25            Tue 07/15/25            Wed 07/16/25
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                      95          55          62          49          72
Temp             62 71 86 93 93 81 67 62 57 57 58 60 59 57 55 52 50 51 59 68 72
Dewpt            44 47 45 45 43 48 53 51 50 51 51 50 47 45 46 45 44 46 46 46 44
RH               52 42 24 19 18 32 61 67 77 80 77 69 64 64 72 77 80 83 62 45 37
Wind dir         SW  W  W  W NW NW NW NW NW  N  N  N  N  N  N  N NW  N  N NE  E
Wind spd          4  5 10 14 17 20 18 14 13 14 16 20 17 14 12  9  6  5  5  8  9
Wind gust              20 25 29 35 34    26 27 26 31 27 26
Clouds           CL CL CL CL B1 B1 B1 B2 B2 OV OV OV B2 OV OV OV B2 B2 B2 SC SC
PoP 12hr                     10          60          80          80          30
QPF 12hr                      0        0.01        0.22        0.29        0.05
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                    C  C  C  L  L  L  D  D  D  D  C  C  C  C  S  S
Tstms                         C  S              C  C  C  S                 S


Date               Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
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    86      53    85      54    89      56    88
Temp          59   50 73 85 65   53 73 85 66   54 78 87 68   56 79 86
Dewpt         46   45 47 43 45   46 47 42 47   44 45 39 42   43 42 38
PWind dir          SE     E      NW     N      NW    SW       W     W
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW   FW FW FW FW   FW SC FW FW   FW FW FW FW   FW FW FW
PoP 12hr            5    10       5     5       5     5       5     5

$$
MTZ326-142215-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
309 AM MDT Mon Jul 14 2025

Date             Mon 07/14/25            Tue 07/15/25            Wed 07/16/25
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                      95          54          72          48          71
Temp             56 70 86 93 90 78 68 60 55 61 68 71 64 60 56 52 49 53 59 67 70
Dewpt            46 46 47 43 44 49 52 53 52 52 54 54 52 50 49 49 47 48 48 49 46
RH               69 42 26 18 20 36 57 78 90 72 61 55 65 69 77 89 93 83 67 52 42
Wind dir          S  S NW NW  W  S  S SW  S  E NE NE  N NE  N  N NW  N NE NE  E
Wind spd          4  2  5  9 11 10  8  6  6  8  9 13 13 12 10  8  5  5  4  5  6
Wind gust                                      19 24
Clouds           CL CL CL FW B1 B1 B1 SC SC SC B2 B2 OV OV OV OV OV B2 B2 SC FW
PoP 12hr                     10          30          80          80          40
QPF 12hr                      0        0.02        0.14        0.17        0.05
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                    C  C  C  S  S  S  D  D  D  D  L  L  C  C  S  S
Tstms                         C  S              C  C  L  C  C  S        S  S


Date               Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
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            45    87      50    87      51    91      52    90
Temp          55   45 74 86 62   50 76 86 64   51 80 87 65   52 80 87
Dewpt         47   44 47 43 48   46 48 43 48   46 46 40 45   44 42 37
PWind dir           E     W       E     W       E    SW      SE     W
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW   FW FW FW FW   FW FW FW SC   FW CL FW SC   FW FW FW
PoP 12hr            5    10      10    10       5    10       5     5

$$
MTZ330-142215-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
309 AM MDT Mon Jul 14 2025

Date             Mon 07/14/25            Tue 07/15/25            Wed 07/16/25
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                      84          44          77          41          71
Temp             44 60 80 83 80 68 57 47 44 58 74 75 67 57 50 45 42 49 62 69 70
Dewpt            40 42 42 40 43 47 47 45 44 46 44 44 49 49 48 45 42 44 45 41 40
RH               86 51 26 22 27 47 69 93100 64 34 33 52 75 93100100 83 54 36 33
Wind dir          N  N SW SW SW  W SE  E  S  S SW SW  W  N NE  N  N  N NW  W NW
Wind spd          0  0  6 10 10  4  1  1  1  3 10 12  8  6  5  3  2  2  5  8  6
Wind gust                                         23
Clouds           FW FW SC B1 B1 B1 SC SC FW FW B2 B2 B2 B2 B1 B1 B2 B1 SC SC FW
PoP 12hr                     30          20          70          70          30
QPF 12hr                   0.04           0        0.05        0.17        0.03
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  C  S                 L  L  L  L  C  C  C  C  C  C
Tstms                      S  S                 C  L  L  C  C  S        C  C


Date               Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
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            38    79      39    81      41    82      41    80
Temp          49   38 73 77 54   39 76 77 54   41 76 78 55   41 75 78
Dewpt         42   38 38 33 40   36 39 36 41   39 37 35 40   37 38 31
PWind dir          NE     S       S    SW      SE    SW      SW    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW   FW FW FW FW   FW FW SC SC   FW FW FW SC   FW FW SC
PoP 12hr            5    10      10    10       5    10       5     5

$$
MTZ328-142215-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
309 AM MDT Mon Jul 14 2025

Date             Mon 07/14/25            Tue 07/15/25            Wed 07/16/25
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                      90          51          75          47          73
Temp             54 66 82 88 89 76 62 55 51 60 71 73 66 58 51 49 47 51 60 69 73
Dewpt            45 48 49 46 45 49 49 50 48 53 55 58 57 52 49 47 46 48 48 48 47
RH               71 52 32 23 22 39 62 83 89 78 57 59 73 80 93 93 96 89 64 47 40
Wind dir          S SW SW  W  W SE  N NE NE  N  N NE  N  N  N  N  N  N  N  N NE
Wind spd          5  5  5 11 13 11  9  9 10 11 12 17 17 18 14 13 10  8  5  6  8
Wind gust                                         27
Clouds           CL CL CL FW FW SC SC FW FW FW B2 B2 B1 B2 B2 OV B2 B1 B1 SC FW
PoP 12hr                      5          10          70          50          20
QPF 12hr                      0           0        0.07        0.05           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                      L  L  C  C  C  C  S  S  S  S
Tstms                                           C  C  C  C  S              S


Date               Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
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            45    87      49    87      50    88      50    87
Temp          53   45 75 86 59   49 77 86 60   50 80 86 60   50 79 85
Dewpt         46   42 46 39 42   40 45 40 43   40 42 39 41   39 39 37
PWind dir          NE    SW       W    SW      SW    SW       W    SW
Wind char          LT    LT      GN    LT      LT    LT      GN    GN
Avg clouds    FW   FW CL FW FW   FW FW FW SC   FW CL FW FW   FW FW FW
PoP 12hr            0    10       5    10       0     5       0     5

$$
MTZ305-142215-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
309 AM MDT Mon Jul 14 2025

Date             Mon 07/14/25            Tue 07/15/25            Wed 07/16/25
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                      85          52          62          47          69
Temp             59 69 81 84 80 68 59 57 54 53 58 61 60 57 52 50 48 53 61 66 68
Dewpt            53 54 56 56 57 55 55 54 52 50 52 52 52 51 50 49 47 49 50 50 51
RH               80 59 42 38 45 63 87 90 93 89 80 72 75 80 93 96 96 86 67 56 54
Wind dir          E NE  N  N NE NE NE NE NE NE NE NE NE NE  E NE  E  E  E SE SE
Wind spd          9 10 10 13 21 21 19 17 17 18 17 17 12 10  9  8  6  8  9 10 10
Wind gust                    32 32                27
Clouds           SC FW FW SC B1 B2 OV OV OV OV OV OV OV OV OV B2 B2 B1 B2 B2 B1
PoP 12hr                     20          80          70          50          20
QPF 12hr                      0        0.34        0.41        0.23        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S  C  L  D  D  L  L  L  L  C  C  C  C  S  S
Tstms                      S  C  C  C           S  S  S
Heat index             81    80
Max heat               81    84


Date               Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
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            46    79      51    79      52    87      55    86
Temp          53   47 70 78 59   52 71 78 60   53 78 85 64   56 78 83
Dewpt         48   45 51 53 53   50 53 51 51   49 51 48 52   50 52 50
PWind dir          SE     E      NE     W       E     S       S     W
Wind char          GN    GN      LT    LT      LT    LT      LT    GN
Avg clouds    SC   FW FW FW B1   SC SC SC FW   FW SC SC SC   SC SC SC
PoP 12hr            5    10      30    10       5    10      10    10
Rain shwrs                   C    S
Tstms                        C    S

$$
MTZ314-142215-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
309 AM MDT Mon Jul 14 2025

Date             Mon 07/14/25            Tue 07/15/25            Wed 07/16/25
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                      90          50          57          46          61
Temp             58 74 86 89 87 73 62 55 51 53 54 57 55 53 51 49 47 50 54 59 61
Dewpt            44 48 48 49 51 56 57 55 51 53 53 53 50 51 51 49 47 48 49 49 48
RH               59 40 27 25 29 55 84100100100 96 86 83 93100100100 93 83 69 62
Wind dir          S  W NW NW  N  E NE NE NE NE  E NE NE NE NE NE  E  E  E  E  E
Wind spd          5  5  9 10 11 11 11 10 10 12 12 13 12 10  9  8  6  6  8  9  9
Wind gust                       21             23 24
Clouds           FW CL FW FW B1 B2 B2 OV OV OV OV OV OV OV OV OV OV B2 B1 B1 SC
PoP 12hr                     10          70          90          90          60
QPF 12hr                      0        0.18        0.34        0.53        0.15
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                    C  L  L  L  D  D  D  D  D  D  D  D  L  L  C  C
Tstms                         C  C  S     S  S  S  C  C  S                 S


Date               Thu 07/17/25  Fri 07/18/25  Sat 07/19/25  Sun 07/20/25
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            43    76      49    76      51    82      53    82
Temp          49   44 68 75 57   50 68 75 59   52 76 80 62   54 76 80
Dewpt         47   43 50 51 53   48 51 51 52   47 49 49 50   45 46 45
PWind dir          SE    SE      SE    NW       E    SW       S     W
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   FW FW FW SC   SC SC FW FW   FW FW SC SC   SC SC FW
PoP 12hr           10    10      20    20      10    20      10    10
Rain shwrs                   S          S             S
Tstms                        S          S             S

$$
http://www.weather.gov/greatfalls