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Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
223 PM MDT Mon Jun 16 2025

MTZ312-171000-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
223 PM MDT Mon Jun 16 2025

Date           06/16/25      Tue 06/17/25            Wed 06/18/25            Thu
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      50          81          49          84          50
Temp          74 74 65 58 54 51 62 75 79 79 70 60 55 50 62 75 82 83 72 61 55 51
Dewpt         45 45 47 47 46 44 46 40 36 34 38 36 35 32 33 31 33 34 36 35 35 34
RH            35 35 52 67 74 77 56 28 21 20 31 41 47 50 33 20 17 17 27 38 47 52
Wind dir      NE  E  S SW  S SW SW  W SW  W SW SW SW SW  W  W  W  W  W SW SW SW
Wind spd       5  6  5  5  5  5  5  5  8  9  6  5  6  8 10 10 13 13 10  6  5  5
Clouds        B1 B1 B1 SC SC SC FW SC SC SC SC FW FW FW CL CL FW FW FW SC FW FW
PoP 12hr                     20          20           0           0           5
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     S  S                 S  S
Tstms          S  S


Date           06/19/25  Fri 06/20/25  Sat 06/21/25  Sun 06/22/25  Mon 06/23/25
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          85      54    79      51    68      42    58      39    69
Temp          76 83 63   55 73 70 57   52 62 62 49   43 50 57 45   40 61 68
Dewpt         36 37 41   43 45 53 51   47 45 44 41   37 36 36 36   33 37 39
PWind dir         W       E    NW      NW    NW      NW     W       W    SW
Wind char        LT      GN    LT      GN    GN      GN    GN      GN    GN
Avg clouds    FW FW B1   B1 B1 B2 B2   B2 B2 B2 B2   B2 B2 B2 SC   SC FW SC
PoP 12hr          5      30    60      80    60      70    60      20    20
Rain shwrs           C    C  S  L  D    C  C  L  L    L  L  L  S          S
Tstms                           C  C          S  S                        S

$$
MTZ303-171000-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
223 PM MDT Mon Jun 16 2025

Date           06/16/25      Tue 06/17/25            Wed 06/18/25            Thu
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      47          79          47          78          48
Temp          75 76 68 58 51 47 62 74 77 77 68 58 51 48 60 72 76 78 69 57 52 49
Dewpt         37 38 41 43 41 38 34 27 28 28 32 33 32 33 32 33 32 33 35 35 32 31
RH            25 25 37 57 68 71 35 17 16 16 26 39 48 56 35 24 20 19 28 43 46 50
Wind dir      SE SE SE SE  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W
Wind spd       5  6  6  5  5  5 10 12 14 17 13 11 10 10 13 14 19 20 14 12 11 10
Wind gust                                                     29 31
Clouds        SC B1 B1 FW FW SC FW FW FW FW SC FW FW FW CL FW FW FW FW FW FW FW
PoP 12hr                     10          10           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date           06/19/25  Fri 06/20/25  Sat 06/21/25  Sun 06/22/25  Mon 06/23/25
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          79      48    71      45    60      36    53      36    65
Temp          72 78 59   49 67 67 53   46 56 56 44   37 47 53 43   37 58 64
Dewpt         29 29 34   38 44 47 48   43 42 40 39   35 35 36 36   33 37 38
PWind dir         W       N    NE      NW     W      NW    NW       W    SW
Wind char        GN      GN    GN      GN    BZ      BZ    BZ      GN    GN
Avg clouds    FW SC B1   B1 B1 B2 OV   B2 B2 B2 B2   B2 B2 B2 B1   SC SC B1
PoP 12hr          0      20    60      90    80      80    70      30    30
Rain shwrs                S  C  L  D    D  L  D  D    L  L  L  C    S     C
Tstms                           C  C          S  S                        S

$$
MTZ319-171000-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
223 PM MDT Mon Jun 16 2025

Date           06/16/25      Tue 06/17/25            Wed 06/18/25            Thu
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      52          82          52          85          53
Temp          74 71 66 59 54 52 60 72 80 80 73 63 57 52 61 75 83 84 75 64 57 53
Dewpt         47 46 48 49 47 46 46 41 34 33 35 34 33 34 36 37 35 35 36 37 36 36
RH            38 41 52 69 77 80 60 33 19 18 25 34 40 50 39 25 18 17 24 37 45 52
Wind dir      SE  N  W  W  W SW  W NW NW NW  W  W  W SW  W  W  W  W NW  W  W  W
Wind spd       5  6  4  3  2  2  2  5  9 10  5  5  4  3  3  8 11 11  8  5  3  2
Wind gust                                                     21
Clouds        B2 B1 B2 B1 B1 SC SC FW FW FW FW FW CL FW FW FW FW FW FW FW FW FW
PoP 12hr                     50          20           0           5           0
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     C  C
Tstms          C  C


Date           06/19/25  Fri 06/20/25  Sat 06/21/25  Sun 06/22/25  Mon 06/23/25
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          86      55    81      52    70      44    63      41    71
Temp          77 82 64   56 74 75 60   52 63 65 51   44 55 62 50   42 63 68
Dewpt         41 41 45   43 48 49 48   45 43 40 38   35 35 34 36   33 37 35
PWind dir        NW      SW     N      NW    NW       W     W       W    SW
Wind char        LT      LT    LT      GN    GN      GN    GN      LT    LT
Avg clouds    FW FW B2   B1 SC B2 B2   B1 B2 B2 B2   B2 B1 B2 B1   FW FW SC
PoP 12hr         10      30    60      60    60      70    70      30    20
Rain shwrs           C    C  S  L  L    C  C  L  L    L  C  L  C          S
Tstms                S          C  S          C  S          S             S

$$
MTZ326-171000-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
223 PM MDT Mon Jun 16 2025

Date           06/16/25      Tue 06/17/25            Wed 06/18/25            Thu
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      48          78          46          84          48
Temp          77 71 63 57 52 48 58 69 76 77 67 57 51 46 60 74 82 83 71 61 52 48
Dewpt         50 49 52 50 49 46 47 45 41 41 41 40 39 36 38 40 38 39 42 42 39 38
RH            39 46 67 77 89 93 67 42 28 28 39 53 63 68 44 29 21 21 35 49 61 68
Wind dir       N  N SE NW  S  S  W NW  W  N  E  S  S  S SW  W  W  W  W SE SE SE
Wind spd       5  5  4  2  2  2  2  4  4  5  3  4  2  3  2  5  9 10  5  4  2  2
Clouds        B2 B1 B2 B2 B2 B1 SC B1 B1 FW FW FW FW FW FW FW FW FW FW FW CL FW
PoP 12hr                     40          40           0           0           0
QPF 12hr                   0.02           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     L  C  C  S           C  C
Tstms          L  C  S              S  S


Date           06/19/25  Fri 06/20/25  Sat 06/21/25  Sun 06/22/25  Mon 06/23/25
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          87      51    85      47    77      40    64      38    71
Temp          79 82 62   51 78 79 59   48 70 71 51   41 55 62 47   38 63 68
Dewpt         43 45 49   47 49 46 46   44 44 38 40   37 35 36 35   34 37 38
PWind dir         W      SE     S       W     W      NW     W       W    SW
Wind char        LT      LT    LT      GN    GN      GN    GN      LT    LT
Avg clouds    FW SC B2   B1 SC B1 B1   SC SC B1 B2   B2 B1 B1 B1   SC FW SC
PoP 12hr         10      30    30      30    30      60    50      30    20
Rain shwrs           C    S     C  C    S     C  L    C  C  C  C          S
Tstms                S          C  S          S  S          S             S

$$
MTZ330-171000-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
223 PM MDT Mon Jun 16 2025

Date           06/16/25      Tue 06/17/25            Wed 06/18/25            Thu
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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          70          36          74          37
Temp          76 72 59 49 40 37 50 64 68 69 60 49 40 36 51 69 73 74 64 52 41 37
Dewpt         33 37 42 43 40 37 38 37 33 33 37 39 36 34 35 34 32 32 37 36 33 32
RH            21 28 53 80100100 63 37 27 26 42 68 85 92 54 27 22 21 37 54 73 82
Wind dir      SW  W  N  N NE SE NW NW  W NW SW SE  N  N SW SW SW SW  S  S  S SE
Wind spd      11  8  4  2  1  1  1  5  8  8  2  1  0  0  2  9 11 11  6  3  1  1
Wind gust     21 18                                           24 24
Clouds        B1 B2 B1 B1 B1 B2 SC B1 B1 SC SC FW FW FW FW CL FW SC FW FW FW FW
PoP 12hr                     30          30           0           0           0
QPF 12hr                      0        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     C  C                 C  C
Tstms          C  C                 S  S
Obvis                     PF PF


Date           06/19/25  Fri 06/20/25  Sat 06/21/25  Sun 06/22/25  Mon 06/23/25
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          81      41    77      39    68      31    58      28    64
Temp          76 79 54   41 73 75 53   39 65 65 44   31 51 57 39   28 58 62
Dewpt         36 35 42   38 39 32 36   32 30 26 31   27 25 24 28   25 26 24
PWind dir         S      NW     S       S    SW      SW    SW       S    SW
Wind char        LT      LT    GN      GN    GN      GN    GN      LT    LT
Avg clouds    FW SC SC   B1 SC FW FW   FW FW SC B1   B1 B1 B1 SC   FW FW SC
PoP 12hr          5      20    20      10    20      30    50      20    20
Rain shwrs           S          S             S  C    C  C  C  S          S
Snowshwrs                                                C
Tstms                           S                                         S

$$
MTZ328-171000-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
223 PM MDT Mon Jun 16 2025

Date           06/16/25      Tue 06/17/25            Wed 06/18/25            Thu
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      45          75          44          81          45
Temp          75 71 59 53 47 45 55 67 72 75 65 56 48 44 57 72 79 80 69 57 49 45
Dewpt         41 45 48 48 45 42 44 43 39 38 39 36 34 34 38 39 38 39 39 37 35 34
RH            29 39 67 83 93 89 66 42 30 26 38 47 58 68 49 30 23 23 33 47 58 65
Wind dir       W  N  N NE  S  S  W  N NW  N NE  S  S  S SW SW SW  W  W SW  S  S
Wind spd       8  9  8  5  4  4  4  4  6  6  5  5  5  5  5  8 13 13 10  6  5  5
Wind gust                                                     24
Clouds        B1 B1 B2 B2 B1 SC FW SC SC SC SC FW FW FW CL CL FW FW FW FW FW FW
PoP 12hr                     40          20           0           0           0
QPF 12hr                   0.08           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     C  C  C  S           S  S
Tstms          C  C  C


Date           06/19/25  Fri 06/20/25  Sat 06/21/25  Sun 06/22/25  Mon 06/23/25
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          83      48    81      45    70      37    60      34    67
Temp          75 78 58   48 75 77 57   45 66 65 47   37 52 59 44   34 60 65
Dewpt         42 46 48   43 46 40 40   38 37 32 35   32 32 34 34   31 36 36
PWind dir        SW       E     S       W    SW       W    SW       N    SW
Wind char        LT      GN    GN      GN    GN      BZ    GN      GN    LT
Avg clouds    FW SC B1   B1 SC SC SC   SC SC B1 B2   B2 B1 B1 SC   FW FW SC
PoP 12hr         10      20    30      20    40      50    50      20    10
Rain shwrs           S          C  S    S     C  C    C  C  C  S
Tstms                S          S             S             S

$$
MTZ305-171000-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
223 PM MDT Mon Jun 16 2025

Date           06/16/25      Tue 06/17/25            Wed 06/18/25            Thu
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      51          85          52          85          51
Temp          79 80 70 59 54 51 63 77 83 82 71 61 56 52 63 76 82 83 71 61 55 52
Dewpt         46 46 48 49 48 46 48 48 44 44 47 46 42 40 44 44 40 39 41 41 40 39
RH            31 30 45 69 80 83 58 36 25 26 42 58 59 63 50 32 22 21 34 48 57 61
Wind dir       N NE SE SE SE SE SW SW  S  W  S  S SW SW  W  W  W  W NW  S SW SW
Wind spd       5  5  4  4  3  2  3  5  8 10  8  9  8 10 11 12 14 13  9  9  9 10
Clouds        B1 SC SC SC SC FW FW SC B1 SC SC SC FW FW CL CL FW FW FW FW FW FW
PoP 12hr                      5          40          10           5          10
QPF 12hr                      0        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  C


Date           06/19/25  Fri 06/20/25  Sat 06/21/25  Sun 06/22/25  Mon 06/23/25
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          85      54    79      52    71      44    60      39    70
Temp          78 82 64   55 73 74 59   52 66 67 52   44 53 58 46   40 62 69
Dewpt         41 37 43   46 51 52 56   51 52 49 47   41 41 40 39   36 42 42
PWind dir         W      NE     E       E     W       W     W       W    SW
Wind char        GN      GN    GN      GN    GN      BZ    BZ      GN    GN
Avg clouds    FW FW B1   B2 B1 B2 OV   B2 B2 B2 B2   B2 B2 B2 SC   SC SC SC
PoP 12hr          0      30    70      90    60      70    60      30    20
Rain shwrs           S    C  C  L  D    L  L  L  L    L  L  L  C          S
Tstms                           C  C                                      S

$$
MTZ314-171000-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
223 PM MDT Mon Jun 16 2025

Date           06/16/25      Tue 06/17/25            Wed 06/18/25            Thu
MDT 3hrly     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
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                      46          74          49          77          50
Temp          69 64 57 52 49 48 62 69 72 72 62 56 52 50 61 70 75 76 65 58 53 51
Dewpt         53 51 51 49 45 44 49 46 45 45 47 45 41 37 39 40 41 43 44 42 39 37
RH            57 63 80 89 86 86 62 44 38 38 58 66 66 61 44 33 29 31 46 55 59 59
Wind dir       N SE  S SE SE  S SW NE  E  S  S  S SW SW  W  W NW NW SE  S  S SW
Wind spd       5  5  4  4  4  3  2  3  3  4  5  8  6  5  5  9  8  5  5  5  4  3
Clouds        B2 B2 B1 B1 B1 B1 FW B1 B1 SC FW FW FW FW CL FW FW FW FW FW FW FW
PoP 12hr                     30          40          10           5          10
QPF 12hr                      0        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     L  C                 C  C
Tstms          C  C


Date           06/19/25  Fri 06/20/25  Sat 06/21/25  Sun 06/22/25  Mon 06/23/25
MDT 6hrly     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18
UTC 6hrly     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00

Max/Min          79      52    76      49    69      39    56      36    65
Temp          73 76 59   53 72 72 56   50 64 64 48   40 51 53 42   37 60 62
Dewpt         43 46 48   46 52 54 53   48 50 49 43   37 38 36 37   33 39 42
PWind dir        NW      SE    SE       N    NW      NW     W       W     S
Wind char        LT      LT    GN      GN    GN      GN    GN      GN    LT
Avg clouds    FW FW B2   B2 B1 B2 B2   B1 B2 B1 B2   B2 B2 B2 B1   SC FW SC
PoP 12hr          5      50    60      60    50      70    60      30    20
Rain shwrs           C    C  C  L  L    C  S  C  L    L  C  L  C          S
Tstms                S          C  C          S  S          S             S

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