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Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
210 AM MDT Sun Jun 15 2025

MTZ312-152200-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
210 AM MDT Sun Jun 15 2025

Date             Sun 06/15/25            Mon 06/16/25            Tue 06/17/25
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                      82          50          78          52          80
Temp          58 54 63 76 81 77 67 60 55 51 59 72 77 72 65 57 54 52 61 73 78 76
Dewpt         51 49 48 51 51 48 50 48 46 44 45 46 46 45 47 47 46 45 45 39 37 37
RH            77 83 58 42 35 36 54 64 72 77 60 39 33 38 52 69 74 77 56 29 23 24
Wind dir       W  W  W NE  N  N SE  S SW  W NW NE NE  E  S  S  S SW SW  W  W  W
Wind spd       4  4  3  4  8  9  5  4  4  4  3  4  6  9  8  6  6  6  6  8  9 10
Clouds        SC SC FW SC B2 B1 B1 SC FW B1 SC B1 B1 B1 B1 B1 B1 B2 SC SC SC SC
PoP 12hr                     60          30          30          30          20
QPF 12hr                   0.09        0.03        0.01        0.03        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 L  C  C              C  C  C  C              S  S
Tstms                      C  C  S                    S  S


Date               Wed 06/18/25  Thu 06/19/25  Fri 06/20/25  Sat 06/21/25
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    83      51    85      54    78      49    67
Temp          60   52 75 82 61   54 77 81 63   56 69 72 56   51 60 61
Dewpt         40   38 34 30 35   36 36 37 45   45 45 41 43   41 39 38
PWind dir          SW    SW      SW     W       E     W       W     W
Wind char          GN    GN      GN    LT      GN    GN      GN    GN
Avg clouds    SC   FW CL FW FW   FW FW SC B1   SC SC B1 B1   SC B1 B1
PoP 12hr            5     0       5     5      30    40      40    50
Rain shwrs                                 C    S  S  C  C    C  C  C
Tstms                                      S          S

$$
MTZ303-152200-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
210 AM MDT Sun Jun 15 2025

Date             Sun 06/15/25            Mon 06/16/25            Tue 06/17/25
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                      77          43          77          48          78
Temp          50 47 59 72 75 76 68 55 48 44 57 70 76 77 68 57 51 49 62 73 76 76
Dewpt         38 36 38 34 34 35 35 35 37 38 42 41 39 39 42 42 39 36 35 34 34 34
RH            63 65 45 25 22 22 29 47 65 79 57 35 26 25 39 57 63 61 36 24 22 22
Wind dir       W NW NW NW  W  W  W NW NW NW  N  E  S  S SE  S SW  W  W  W  W  W
Wind spd       5  6  6  8 12 14 10  9  8  6  4  5  6  9  9  8  6  8 10 13 13 13
Wind gust                                                                    24
Clouds        SC FW FW SC B2 SC FW FW FW FW FW SC SC SC B1 SC B1 SC SC SC SC SC
PoP 12hr                     10           0          10          10          10
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Wed 06/18/25  Thu 06/19/25  Fri 06/20/25  Sat 06/21/25
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    78      47    79      49    71      43    62
Temp          56   48 72 77 59   49 72 77 59   50 64 65 52   45 56 58
Dewpt         38   34 33 31 33   32 31 30 35   38 39 39 40   38 37 38
PWind dir           W     W       W     W       W    NW       W     W
Wind char          GN    GN      GN    GN      GN    GN      GN    BZ
Avg clouds    SC   FW FW FW FW   SC SC SC B1   B1 B1 B1 B1   B1 B2 B2
PoP 12hr            5     0       5     5      20    40      50    60
Rain shwrs                                      S  C  C  C    C  C  L

$$
MTZ319-152200-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
210 AM MDT Sun Jun 15 2025

Date             Sun 06/15/25            Mon 06/16/25            Tue 06/17/25
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                      82          53          79          52          80
Temp          59 55 63 76 79 77 71 63 57 53 61 73 77 75 67 60 56 52 59 71 78 78
Dewpt         41 40 42 48 45 45 45 45 43 43 45 45 45 43 46 46 45 44 42 43 37 36
RH            51 57 46 37 30 32 39 52 59 69 56 37 32 32 47 60 66 74 53 36 23 22
Wind dir       W  W  N NE  N  N  N  W  W SW NE  E  S NW  S  S SW SW  W  W NW NW
Wind spd       2  2  1  3  8 10  5  2  2  1  1  3  5  6  5  5  3  2  2  5  9 10
Clouds        FW FW FW SC B2 B2 SC SC SC B1 SC B1 B1 B1 B2 B2 B1 B1 SC SC SC FW
PoP 12hr                     60          50          50          40          20
QPF 12hr                   0.13        0.01        0.16        0.13           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 L  C  S              C  C  C  C  S  S  S  S  S  S
Tstms                      C  C  S                    C  C


Date               Wed 06/18/25  Thu 06/19/25  Fri 06/20/25  Sat 06/21/25
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            51    85      52    87      54    80      49    69
Temp          62   52 74 83 64   52 76 83 65   55 71 74 59   49 61 64
Dewpt         39   36 38 32 36   37 40 39 44   43 43 37 40   39 38 34
PWind dir           W     W       W     E       W     W       W     W
Wind char          LT    LT      LT    LT      LT    LT      GN    GN
Avg clouds    SC   FW FW FW FW   FW FW SC B1   SC SC B1 B1   SC B1 B1
PoP 12hr            5     0       5    10      20    40      30    50
Rain shwrs                                 S       S  C  C    S  S  C
Tstms                                      S          S             S

$$
MTZ326-152200-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
210 AM MDT Sun Jun 15 2025

Date             Sun 06/15/25            Mon 06/16/25            Tue 06/17/25
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          49          78          47          76
Temp          54 50 62 76 82 78 68 59 52 49 60 74 77 71 62 56 51 47 56 67 74 74
Dewpt         47 44 47 51 49 50 52 50 49 47 49 52 51 51 51 49 48 45 47 47 44 44
RH            77 80 58 42 32 37 57 72 89 93 67 46 40 49 67 77 89 93 72 49 34 34
Wind dir       S  S  W NW  N  N  W  S  S SW  W NW  N SW  E  E  S SW  W NW  W NW
Wind spd       2  2  1  2  4  6  4  2  2  2  1  2  3  5  4  2  2  2  2  4  4  5
Clouds        FW SC SC B1 SC OV SC SC SC SC B1 B2 B2 B2 B2 B2 B1 B1 SC B1 B1 SC
PoP 12hr                     60          70          60          50          40
QPF 12hr                   0.04        0.01        0.03        0.17        0.02
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S  L  S              L  L  C  C  S  S  S  S  C  C
Tstms                      S  C                       C  C


Date               Wed 06/18/25  Thu 06/19/25  Fri 06/20/25  Sat 06/21/25
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    83      49    88      50    82      45    72
Temp          57   47 73 81 61   49 78 82 62   51 75 75 57   46 65 66
Dewpt         45   41 41 39 41   38 41 44 48   44 43 40 42   39 38 37
PWind dir           S    SW       S     W      SE     S       W     W
Wind char          LT    LT      LT    LT      LT    LT      GN    LT
Avg clouds    SC   FW CL FW FW   FW FW SC B1   SC SC SC SC   SC SC B1
PoP 12hr           10     0       0    10      20    20      20    30
Rain shwrs                                 S          S  S          C
Tstms                                      S          S             S

$$
MTZ330-152200-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
210 AM MDT Sun Jun 15 2025

Date             Sun 06/15/25            Mon 06/16/25            Tue 06/17/25
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                      79          37          73          38          69
Temp          41 38 55 76 79 77 65 51 40 37 51 69 73 70 57 49 40 38 50 63 68 66
Dewpt         30 30 33 33 33 31 32 32 33 34 36 34 32 33 40 41 39 38 40 37 35 36
RH            65 73 43 21 19 18 29 48 76 89 56 27 22 25 53 74 96100 68 38 29 33
Wind dir       N  E  N SW SW SW SW  W SE  N  S SW SW SW  N  N  N  N NW  W  W  W
Wind spd       2  1  1  6 12 12  6  1  1  0  1  6  9  8  3  2  1  0  1  5  8  6
Wind gust                 24 25                      18
Clouds        FW B1 SC FW SC SC SC FW FW SC B1 B1 B1 B1 B1 SC SC B1 SC B1 B1 SC
PoP 12hr                     20          10          40          30          40
QPF 12hr                      0           0           0        0.01        0.02
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 S                    C  C  C  C        S  S  C  C
Tstms                      S                          S  S              S  S


Date               Wed 06/18/25  Thu 06/19/25  Fri 06/20/25  Sat 06/21/25
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            35    73      37    80      42    73      37    66
Temp          48   36 68 72 51   38 75 78 56   42 69 70 51   38 60 62
Dewpt         40   34 35 32 35   32 34 34 38   35 34 29 34   30 28 24
PWind dir          NW    SW       S     S       S     S      SW    SW
Wind char          LT    LT      LT    LT      LT    GN      GN    GN
Avg clouds    SC   SC FW FW FW   CL FW SC SC   SC SC SC SC   SC SC SC
PoP 12hr           10     0       0     5      10    10      10    20
Rain shwrs                                                          S
Tstms                                                               S

$$
MTZ328-152200-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
210 AM MDT Sun Jun 15 2025

Date             Sun 06/15/25            Mon 06/16/25            Tue 06/17/25
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                      80          46          75          44          72
Temp          49 46 58 73 78 77 66 57 49 46 56 70 75 68 57 52 46 44 53 66 70 71
Dewpt         39 37 41 47 44 45 47 46 43 42 45 48 44 47 47 46 43 41 43 44 41 41
RH            68 71 53 40 30 32 50 67 80 86 66 45 33 47 69 80 89 89 69 45 35 34
Wind dir       S  S  W  N SW  N  N SE SE  S  W NW  W SE  N NW SW SW  W  N NW NW
Wind spd       5  4  2  3  6 11  9  5  4  3  2  3  5  8  6  5  4  5  4  5  8  9
Clouds        FW SC SC SC B1 SC B1 SC SC B1 SC B1 B1 B1 B2 B2 SC SC SC SC SC SC
PoP 12hr                     40          10          50          30          20
QPF 12hr                      0           0        0.04        0.10           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                 C                    C  C  C  C              S  S
Tstms                      C                          C  C


Date               Wed 06/18/25  Thu 06/19/25  Fri 06/20/25  Sat 06/21/25
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            44    80      46    85      49    77      43    66
Temp          54   44 71 79 58   47 77 80 59   50 73 73 53   43 60 61
Dewpt         40   36 39 35 36   33 40 42 42   39 41 36 35   33 34 33
PWind dir           W    SW      SW    SW       S    SW      SW     W
Wind char          LT    GN      GN    GN      GN    GN      BZ    GN
Avg clouds    FW   FW CL CL FW   FW FW SC SC   FW SC SC SC   SC SC B1
PoP 12hr            5     0       0     5      10    20      10    30
Rain shwrs                                            S             C
Tstms                                                 S             S

$$
MTZ305-152200-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
210 AM MDT Sun Jun 15 2025

Date             Sun 06/15/25            Mon 06/16/25            Tue 06/17/25
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                      83          50          82          52          82
Temp          58 54 64 77 82 78 69 59 54 50 61 76 82 80 71 61 56 52 63 75 80 80
Dewpt         55 52 55 58 55 52 54 53 51 49 52 53 47 45 50 51 49 48 50 49 45 45
RH            90 93 73 52 40 40 59 80 90 96 72 45 29 29 47 70 77 86 62 40 29 29
Wind dir      SE  W SW SW SE NW SE  W  S SW  W NW NW  N  E  S  S  S SW SW  W  W
Wind spd       3  2  3  4  5  9  5  5  5  5  5  4  5  5  4  5  4  3  5  6  9 10
Clouds        B1 B1 SC SC B1 B1 B1 FW FW SC FW SC SC SC SC SC SC B1 SC B1 B1 SC
PoP 12hr                     30          30          10          20          30
QPF 12hr                   0.02        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     S           C  C                       S  S              C  C  S
Tstms                      C  C                                               S
Obvis            PF
Heat index                82
Max heat                     82                      80


Date               Wed 06/18/25  Thu 06/19/25  Fri 06/20/25  Sat 06/21/25
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            51    83      52    85      53    79      50    70
Temp          60   53 75 82 62   54 76 83 63   55 71 74 57   51 64 67
Dewpt         49   46 44 37 41   40 41 39 44   46 47 45 47   44 44 43
PWind dir          SW     W      SW     W       E    SE       W     W
Wind char          LT    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC   SC FW FW SC   SC FW SC B1   B1 B1 B1 B2   B1 B1 B1
PoP 12hr           20     5      10     5      30    40      50    50
Rain shwrs     S                           C    C  C  C  C    C  C  C
Tstms          S                           S

$$
MTZ314-152200-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
210 AM MDT Sun Jun 15 2025

Date             Sun 06/15/25            Mon 06/16/25            Tue 06/17/25
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                      76          49          73          49          71
Temp          54 52 61 70 74 69 58 54 52 50 61 70 72 68 60 54 50 51 61 66 69 69
Dewpt         53 51 56 57 57 58 55 52 49 47 50 51 51 51 51 50 47 48 51 49 48 46
RH            96 96 84 63 55 68 90 93 89 89 67 51 48 54 72 86 89 89 70 54 47 44
Wind dir       E SE  E  E  E  E  S SW  S SW  W  N NE NE  S  S  S  S  W NW NW  W
Wind spd       3  2  3  4  5  6  5  3  3  3  3  4  4  5  5  5  4  3  4  5  5  5
Clouds        B1 B1 B1 SC B1 OV B2 B1 SC SC SC B1 B1 B1 B2 B2 B1 B1 B1 B2 B2 SC
PoP 12hr                     70          80          40          40          50
QPF 12hr                   0.13        0.80        0.16        0.16        0.16
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     C     S     C  D  C        S  S  C  C  C  C  C  C  C  C  C  C  S
Tstms          S           C  L  S                    S  S                    S
Obvis         PF PF


Date               Wed 06/18/25  Thu 06/19/25  Fri 06/20/25  Sat 06/21/25
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    76      50    80      51    77      46    65
Temp          55   52 70 75 58   53 74 76 59   54 70 69 54   48 60 61
Dewpt         47   43 41 41 42   41 43 46 48   45 49 47 44   43 43 42
PWind dir          SW     W       S     W      SE    SE       W    NW
Wind char          LT    LT      LT    LT      LT    GN      GN    GN
Avg clouds    SC   FW FW FW SC   SC FW SC B1   SC SC B1 B1   SC B1 B1
PoP 12hr           20     5      10    10      40    40      50    40
Rain shwrs     S                           C    C  S  C  C    S  S  C
Tstms          S                           C          S  S

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