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Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
258 PM MDT Mon Jun 30 2025

MTZ312-011000-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
258 PM MDT Mon Jun 30 2025

Date           06/30/25      Tue 07/01/25            Wed 07/02/25            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                      56          93          58          93          60
Temp          86 88 77 66 60 56 68 83 91 91 81 70 63 59 71 88 92 85 75 67 63 60
Dewpt         40 40 44 43 42 42 44 44 42 41 45 46 45 44 46 48 47 48 50 52 50 49
RH            20 19 31 43 51 59 42 25 18 18 28 42 52 57 41 25 21 28 41 59 62 67
Wind dir      SE  E  E SE  S  W  W  W NW NE  E SE  S SW SW  S  S  S  S SW SW SW
Wind spd       8 10 10  6  5  5  4  3  6 10 10  6  5  5  5  4  8 11 10  8  6  6
Clouds        CL CL FW FW FW FW CL FW FW SC B1 FW FW FW FW SC SC B1 B1 SC SC SC
PoP 12hr                      0           0           0          20          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                  S  S  S  S
Tstms                                                          S  S  S


Date           07/03/25  Fri 07/04/25  Sat 07/05/25  Sun 07/06/25  Mon 07/07/25
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          89      58    82      55    82      54    80      55    84
Temp          83 84 67   59 74 80 63   55 75 77 62   55 73 79 63   56 73 83
Dewpt         46 44 46   45 43 39 43   43 45 44 48   46 47 43 48   47 47 46
PWind dir        SW      SW     W       W     W       S     W       N    NW
Wind char        LT      GN    GN      GN    LT      GN    LT      GN    LT
Avg clouds    SC SC B1   B1 B1 B1 B1   SC SC B1 SC   SC SC SC SC   SC SC SC
PoP 12hr         20      30    30      30    30      20    20      20    20
Rain shwrs        S  C    S  S  C  C    S  S  C  S          S  S          S
Tstms             S  S          C  S          S  S             S          S

$$
MTZ303-011000-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
258 PM MDT Mon Jun 30 2025

Date           06/30/25      Tue 07/01/25            Wed 07/02/25            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          88          55          91          58
Temp          81 83 74 63 55 51 65 81 86 88 78 67 60 55 70 85 89 86 76 66 62 59
Dewpt         38 39 41 42 40 40 44 44 42 41 45 45 42 42 43 43 43 45 47 47 44 42
RH            21 21 30 46 57 66 46 27 21 19 31 45 51 61 38 23 20 24 36 50 52 53
Wind dir      SE SE  E SE NW NW NW  N  N NE  E SW  W  W SW  S SW  S SW  W  W  W
Wind spd      13 13 10  5  3  4  4  5  6  9  6  5  4  3  4  9 12 13 12 10 10 10
Clouds        CL CL FW FW FW FW CL FW FW SC FW FW FW FW FW SC SC SC B1 B1 SC FW
PoP 12hr                      0           0           0          10          20
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                        S  S
Tstms                                                             S  S


Date           07/03/25  Fri 07/04/25  Sat 07/05/25  Sun 07/06/25  Mon 07/07/25
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          84      53    77      51    78      51    75      51    77
Temp          79 82 64   54 70 76 60   51 71 77 60   52 68 74 59   51 69 76
Dewpt         38 38 39   40 41 38 41   41 40 40 46   46 44 45 48   46 45 46
PWind dir         W       W    NW       W     W       W     W      NW     N
Wind char        GN      GN    GN      GN    GN      GN    GN      GN    GN
Avg clouds    SC FW SC   B1 SC SC SC   SC SC SC SC   B1 SC SC SC   SC SC SC
PoP 12hr         10      10    20      20    30      20    20      20    20
Rain shwrs                   S  S  S    S  S  C  S          S  S    S     S
Tstms                           S             S  S             S          S

$$
MTZ319-011000-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
258 PM MDT Mon Jun 30 2025

Date           06/30/25      Tue 07/01/25            Wed 07/02/25            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                      58          95          58          89          59
Temp          87 89 81 68 63 58 67 82 92 93 82 70 63 59 66 82 88 83 76 68 63 59
Dewpt         39 40 42 43 42 42 44 44 38 37 44 45 43 43 46 50 50 50 50 51 49 48
RH            18 18 25 40 46 55 43 26 15 14 26 41 48 55 48 33 27 32 40 54 60 67
Wind dir       E  E  S  W  W  W NE NW NW  W  S  S  S  S SE SE SW  S SW  S  S SW
Wind spd       9 10  5  4  2  1  1  4  9 10  5  4  2  1  1  4  8 11  8  5  4  2
Clouds        CL FW FW FW CL CL FW FW FW B1 SC FW FW FW SC B1 B1 B2 B1 SC SC SC
PoP 12hr                      0           0           5          40          30
QPF 12hr                      0           0           0        0.07           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                  C  C  C  C        S
Tstms                                                       S  S  C  S


Date           07/03/25  Fri 07/04/25  Sat 07/05/25  Sun 07/06/25  Mon 07/07/25
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      57    79      54    81      54    83      55    85
Temp          79 81 65   57 71 77 63   54 73 78 62   54 73 81 64   55 74 84
Dewpt         50 47 49   47 45 42 44   42 46 43 47   45 47 45 46   45 48 43
PWind dir         W      SW     W       W    NW       W    SW       W    NW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC B1 B1   B1 B1 B1 B1   SC SC B1 SC   SC SC SC SC   SC FW SC
PoP 12hr         40      40    50      40    40      20    20      20    20
Rain shwrs     S  C  C    S  C  C  C    S  S  C  S          S  S          S
Tstms             C  C    S     C  C    S     C  S          S  S          S

$$
MTZ326-011000-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
258 PM MDT Mon Jun 30 2025

Date           06/30/25      Tue 07/01/25            Wed 07/02/25            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                      53          96          55          93          56
Temp          88 88 75 66 58 53 68 87 95 89 75 67 59 55 68 85 91 84 72 64 58 56
Dewpt         40 40 45 45 44 43 44 47 43 46 50 49 47 46 47 49 48 49 51 51 50 50
RH            19 19 34 47 59 69 42 25 17 23 41 52 64 72 47 29 23 30 48 63 75 80
Wind dir      NE  E SE SE  W  S  N NW  N SW  S SE SE SE  S  S  S NW  S SE SE SE
Wind spd       4  6 10  9  5  3  2  3  5  8  5  5  4  3  2  3  8 10  6  5  3  2
Clouds        CL CL FW FW CL FW CL FW FW B2 B1 SC FW FW SC B1 B1 B1 B1 B1 B1 B1
PoP 12hr                      0          10          20          30          30
QPF 12hr                      0        0.03        0.02           0        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S  S              C  C  C  C        S
Tstms                                     S                 S  S  C  S


Date           07/03/25  Fri 07/04/25  Sat 07/05/25  Sun 07/06/25  Mon 07/07/25
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      53    81      50    82      49    85      50    88
Temp          81 78 62   53 73 75 60   50 75 76 59   50 77 79 61   50 80 83
Dewpt         51 52 52   50 50 48 49   46 47 47 48   45 48 45 49   45 49 45
PWind dir         W       S     W      SE    NW      SE    SW      SE     W
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B2 B2   B2 B1 B2 B1   SC SC B1 SC   SC FW SC SC   SC FW SC
PoP 12hr         50      50    60      50    40      20    20      20    20
Rain shwrs     S  C  C    S  C  L  C    C  S  C  S          S  S          S
Tstms             C  C    S  S  L  C    S     C  S          S  S          S

$$
MTZ330-011000-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
258 PM MDT Mon Jun 30 2025

Date           06/30/25      Tue 07/01/25            Wed 07/02/25            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                      41          86          45          83          46
Temp          79 79 68 55 45 41 59 81 84 79 68 57 48 45 59 78 82 79 69 59 49 46
Dewpt         33 32 36 37 36 36 40 41 38 41 47 47 45 43 45 43 40 39 42 45 44 43
RH            19 18 31 51 70 82 49 24 19 26 47 69 89 93 60 29 22 24 37 60 83 89
Wind dir      SW SW  S SE  N  N  W SW  W  N NE NE  E SE  S SW SW SW  S  S SE  S
Wind spd       6  5  2  2  1  0  1  5  9  5  3  2  1  1  2  9 10 10  5  2  2  1
Wind gust                                                     20
Clouds        FW FW FW FW FW FW FW FW B1 B2 B1 SC SC B1 B1 B1 B1 B1 B1 B1 B2 B2
PoP 12hr                      0          20          20          40          30
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                             S  S  S              C  C  C  C        S
Tstms                                     S                 C  C  C  S


Date           07/03/25  Fri 07/04/25  Sat 07/05/25  Sun 07/06/25  Mon 07/07/25
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          74      45    71      39    73      39    75      39    80
Temp          71 71 54   45 64 67 50   40 68 68 49   39 68 74 51   39 73 79
Dewpt         44 43 48   45 46 43 45   40 42 41 42   39 39 38 42   38 38 35
PWind dir         S       S    SW      SE     S       S    SW       S     S
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B2 B2 B2   B2 B2 B2 B1   SC SC B1 SC   SC SC SC SC   SC FW SC
PoP 12hr         50      50    70      50    40      20    20      10    20
Rain shwrs     S  C  C    S  C  L  C    S  S  C  S          S             S
Tstms             C  C    S  S  L  C          C  S          S             S

$$
MTZ328-011000-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
258 PM MDT Mon Jun 30 2025

Date           06/30/25      Tue 07/01/25            Wed 07/02/25            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          90          52          87          53
Temp          84 86 75 63 56 52 65 83 89 82 72 61 56 52 64 81 85 81 68 60 56 53
Dewpt         42 41 43 42 39 39 43 47 46 53 52 50 46 43 47 49 49 50 52 51 49 48
RH            23 21 32 46 53 61 45 28 23 37 49 67 69 71 54 33 29 34 57 72 77 83
Wind dir      SW  S SE  S  S  S SW  W SW NE NE  S  S  S  S  S  S  N  N  S  S  S
Wind spd       5  5  5  5  5  4  2  2  5  9  5  5  5  5  4  6 12 11  8  5  5  5
Clouds        CL FW FW FW FW FW CL FW SC B1 SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1
PoP 12hr                      5          20          20          40          30
QPF 12hr                      0        0.01           0           0        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                             S  S  S              C  C  C  C        S
Tstms                                     S                 S  S  C  S


Date           07/03/25  Fri 07/04/25  Sat 07/05/25  Sun 07/06/25  Mon 07/07/25
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      50    76      48    77      48    79      48    83
Temp          76 75 57   50 69 73 56   48 71 71 55   48 71 78 57   48 75 82
Dewpt         51 53 51   48 50 48 48   44 49 49 47   43 47 48 47   43 47 46
PWind dir        SW      SW    SW       E    SW       S    SW      SE    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC B1 B2   B1 B1 B2 B1   SC FW B1 SC   SC FW SC SC   FW FW FW
PoP 12hr         50      50    60      50    40      20    20      10    10
Rain shwrs     S  C  C    S  C  L  C    S     C  S          S
Tstms             C  C    S  S  L  C          C  S          S

$$
MTZ305-011000-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
258 PM MDT Mon Jun 30 2025

Date           06/30/25      Tue 07/01/25            Wed 07/02/25            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                      53          95          58          98          59
Temp          85 85 76 64 58 54 68 85 92 93 81 69 62 59 72 90 97 93 79 69 64 60
Dewpt         43 42 46 43 42 41 44 45 45 45 49 47 45 45 48 52 53 50 55 53 53 51
RH            23 22 34 46 55 61 42 25 20 19 33 45 54 60 42 27 23 23 44 57 67 72
Wind dir      SE SE  E  E  E  E NE  E NE  E  E  E  E SE SE SE  S  S  S SW SW SW
Wind spd       8 10  9  9  6  5  3  4  5  6  5  6  5  3  4  6  9 10 10  8  6  8
Clouds        FW CL FW FW FW FW CL FW FW FW FW FW FW FW FW FW SC B1 B1 SC SC B1
PoP 12hr                      0           0           0          10          30
QPF 12hr                      0           0           0           0        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                        C  C
Tstms                                                             C  S
Heat index                                                          80
Max heat         83    82          82    90    88          87    95    87


Date           07/03/25  Fri 07/04/25  Sat 07/05/25  Sun 07/06/25  Mon 07/07/25
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          91      58    83      54    83      54    83      55    84
Temp          86 88 67   59 76 80 63   55 77 80 62   55 77 79 62   56 77 81
Dewpt         49 45 47   48 50 47 49   48 50 47 50   49 53 49 52   50 54 49
PWind dir         W      SW    SW       W     W      SE    SW       W    NW
Wind char        GN      GN    GN      GN    GN      LT    LT      GN    GN
Avg clouds    SC SC B1   B1 B1 B1 B1   B1 SC B1 SC   SC SC SC SC   SC SC SC
PoP 12hr         10      20    30      30    30      20    20      20    20
Rain shwrs           S    S  S  C  C    C  S  C  S    S     S  S    S  S  S
Tstms                           C  C          C  S          S  S          S

$$
MTZ314-011000-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
258 PM MDT Mon Jun 30 2025

Date           06/30/25      Tue 07/01/25            Wed 07/02/25            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                      54          88          58          91          58
Temp          80 80 69 61 56 55 69 82 87 87 75 67 62 59 73 86 90 82 70 65 61 59
Dewpt         41 41 44 40 38 38 44 47 47 46 50 49 45 43 49 50 51 54 55 53 50 48
RH            25 25 40 46 51 53 40 29 25 24 41 52 54 55 43 29 26 38 59 65 67 67
Wind dir       E  E SE SE  E SE  W NW NW  N  E SE  S  S  S SE  S SW  S  S SW SW
Wind spd       5  8 10  9  6  4  2  4  5  5  5  5  4  4  3  5  6  9  8  5  5  4
Clouds        CL CL FW FW FW FW CL CL FW B1 B1 SC SC FW FW B1 B1 B1 B2 B1 B1 B2
PoP 12hr                      0           0           5          30          40
QPF 12hr                      0           0           0        0.01        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                                  C  C  C  C
Tstms                                                       S  C  C  S


Date           07/03/25  Fri 07/04/25  Sat 07/05/25  Sun 07/06/25  Mon 07/07/25
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          84      56    76      52    77      51    78      51    80
Temp          80 78 63   57 70 73 59   53 72 72 58   52 72 75 58   52 74 77
Dewpt         50 51 52   48 49 48 49   44 46 48 49   45 49 49 51   46 51 51
PWind dir        NW      SW     W      SW    SW       S     W       S     N
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    B1 B1 B2   B2 B2 B1 B1   B1 SC B1 B1   SC SC SC B1   SC SC SC
PoP 12hr         30      50    50      50    40      30    30      30    20
Rain shwrs        C  C    S  C  C  C    C  S  C  C    S     C  C          S
Tstms             C  C          C  C          C  C          C  C          S

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