Point Forecast Matrices
Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
929 PM MDT Fri Aug 29 2025

MTZ312-301000-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
929 PM MDT Fri Aug 29 2025

Date           08/29/25      Sat 08/30/25            Sun 08/31/25            Mon
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          83          53          87          54
Temp                   57 54 53 59 72 81 82 69 62 55 53 63 79 85 86 72 63 57 54
Dewpt                  55 53 53 54 52 46 44 47 47 44 43 43 42 40 39 43 43 42 42
RH                     93 96100 83 49 29 26 45 58 66 69 48 27 20 19 35 48 57 64
Wind dir                W  W SW  W  W NW NW SE SW SW SW SW  W NW  N  E SE SW SW
Wind spd                4  4  4  5  5  6  6  5  6  6  6  5  5  5  6  5  5  4  4
Clouds                 B1 B1 B1 SC FW SC FW FW FW FW FW FW CL FW FW FW FW FW FW
PoP 12hr                     20           5           0           0           0
QPF 12hr                   0.03           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs
Tstms
Obvis                     PF PF


Date           09/01/25  Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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      54    83      52    82      51    84      51    86
Temp          79 88 65   55 74 82 61   52 72 81 60   52 76 83 60   52 76 85
Dewpt         44 41 44   44 48 47 47   45 46 42 43   41 42 39 41   39 41 37
PWind dir        SE      SE    NW      NE    NW       E    NW      SE    SW
Wind char        LT      LT    LT      GN    LT      LT    LT      LT    LT
Avg clouds    FW FW FW   FW SC FW SC   SC SC FW FW   FW SC FW FW   FW SC SC
PoP 12hr          0       0     5       5     0       0     0       5     0

$$
MTZ303-301000-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
929 PM MDT Fri Aug 29 2025

Date           08/29/25      Sat 08/30/25            Sun 08/31/25            Mon
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          82          50          86          51
Temp                   51 49 48 56 72 80 79 66 58 53 50 61 79 84 85 69 61 54 51
Dewpt                  50 48 48 49 50 46 46 47 45 42 40 40 41 39 40 42 43 40 40
RH                     96 96100 77 46 30 31 50 62 66 68 46 26 20 20 37 51 59 66
Wind dir                W  W  W SW SW  W  W  W  W  W  W  W NW NW  N NE  W  W  W
Wind spd                3  3  3  3  6  9 10  6  8  8  9  6  6  8  9  5  3  3  4
Clouds                 SC B1 B1 FW FW FW SC SC FW FW FW CL CL FW FW SC FW SC FW
PoP 12hr                     10           5           5           0           0
QPF 12hr                   0.01        0.03           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs
Tstms
Obvis                  PF  F  F


Date           09/01/25  Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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          88      51    79      49    80      48    83      49    84
Temp          80 86 62   52 72 77 57   49 70 79 57   48 75 82 58   49 76 82
Dewpt         43 40 44   43 48 46 45   44 45 41 42   39 41 38 40   39 39 36
PWind dir         S       N     N       E    SE       S     N      SE    SW
Wind char        LT      LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW SC   SC SC SC SC   SC SC FW FW   SC SC FW FW   SC SC FW
PoP 12hr          0       0     5       5     0       0     0       5     5

$$
MTZ319-301000-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
929 PM MDT Fri Aug 29 2025

Date           08/29/25      Sat 08/30/25            Sun 08/31/25            Mon
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          84          54          87          56
Temp                   62 59 54 58 72 80 82 73 66 60 54 59 74 84 86 75 67 61 56
Dewpt                  51 50 48 49 51 46 41 41 41 40 40 42 44 41 38 40 40 40 40
RH                     67 72 80 72 48 30 23 31 40 47 59 53 34 22 18 28 37 46 55
Wind dir                W  W SW NE NE NW NW  S SW SW SW  S NE  N  N  S SW SW  S
Wind spd                3  3  3  2  5  9  9  5  5  5  4  2  4  6  6  5  3  2  2
Wind gust                                                     17
Clouds                 SC SC SC FW FW FW CL FW FW FW FW FW CL FW FW FW FW FW FW
PoP 12hr                     20          10           0           0           0
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs
Tstms


Date           09/01/25  Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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      56    84      55    82      53    83      53    84
Temp          76 88 69   57 74 83 66   56 71 81 65   54 72 83 65   54 73 83
Dewpt         44 39 42   41 47 44 45   44 46 41 41   39 42 36 39   38 42 39
PWind dir        SE      NW     N      NW     N      NW     N       W    SE
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW FW   FW FW FW FW   FW FW FW FW   FW FW FW FW   SC FW SC
PoP 12hr          0       0     5       5     5       0     5       5     5

$$
MTZ326-301000-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
929 PM MDT Fri Aug 29 2025

Date           08/29/25      Sat 08/30/25            Sun 08/31/25            Mon
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                      49          81          49          84          49
Temp                   60 55 51 56 70 79 79 68 60 55 50 58 73 82 83 70 61 55 50
Dewpt                  51 49 47 47 48 44 40 41 41 40 38 41 41 37 37 38 40 38 37
RH                     72 80 86 72 45 29 25 37 49 57 63 53 31 20 19 31 46 53 61
Wind dir                S  S SE  S NW NW NW  E SE  S  S  S  W NW  N  E SE SE SE
Wind spd                3  3  3  2  5  6  6  5  5  4  4  2  3  5  5  5  5  5  3
Clouds                 B1 SC FW FW FW FW FW FW FW FW FW FW CL FW FW FW FW FW FW
PoP 12hr                     10           5           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date           09/01/25  Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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      50    84      50    80      47    81      47    82
Temp          75 85 62   51 76 82 62   51 70 79 59   48 71 80 59   48 73 80
Dewpt         41 39 42   39 45 41 45   43 44 41 42   37 40 36 39   36 41 36
PWind dir        NE       E    NE       E    NE       E    SW       E    SW
Wind char        LT      LT    LT      GN    LT      LT    LT      LT    LT
Avg clouds    FW FW FW   FW FW FW FW   FW FW FW FW   FW SC FW SC   SC SC SC
PoP 12hr          0       0     5       5    10       5     5       5     5

$$
MTZ330-301000-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
929 PM MDT Fri Aug 29 2025

Date           08/29/25      Sat 08/30/25            Sun 08/31/25            Mon
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          74          36          76          36
Temp                   50 42 38 48 67 72 72 58 49 40 36 48 70 76 74 61 50 41 36
Dewpt                  42 40 38 40 40 33 32 35 36 33 33 35 36 30 32 38 37 33 32
RH                     74 93100 74 37 24 23 42 61 76 89 60 29 18 21 42 61 73 85
Wind dir               SW  N  N  N  W NW NW  N  N  N  N  N  W  W  W NE NE  E  N
Wind spd                1  0  0  0  5 10 10  2  0  0  0  0  2  5  5  2  1  1  0
Clouds                 B1 SC FW FW FW FW FW FW FW FW FW FW CL FW FW FW FW FW FW
PoP 12hr                      5           5           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Obvis                         F


Date           09/01/25  Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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      38    78      40    74      38    74      37    74
Temp          72 76 52   38 72 76 52   40 69 72 51   38 68 72 50   37 68 72
Dewpt         36 34 39   36 39 34 40   38 39 35 39   36 36 31 36   34 36 34
PWind dir         N      NE     N      NE     N      NE    NW      NE    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW FW   FW FW FW FW   FW FW FW FW   FW SC SC SC   SC SC SC
PoP 12hr          0       0     5       5    10       5     5       5    10

$$
MTZ328-301000-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
929 PM MDT Fri Aug 29 2025

Date           08/29/25      Sat 08/30/25            Sun 08/31/25            Mon
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          77          45          81          47
Temp                   56 51 46 53 69 76 76 65 56 50 46 54 70 78 80 66 57 51 47
Dewpt                  46 44 41 44 44 42 40 39 38 36 34 39 42 40 41 40 39 37 35
RH                     69 77 83 71 40 30 27 38 51 58 63 57 36 26 25 38 51 59 63
Wind dir                S  S  S SW NE NW  N SE  S  S  S  S  W  W  N  E SE  S  S
Wind spd                5  5  5  4  4  5  5  5  5  4  5  3  2  3  4  4  5  4  5
Clouds                 SC FW FW CL FW FW FW FW FW FW FW CL CL FW FW FW FW FW FW
PoP 12hr                      5           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date           09/01/25  Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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          82      48    82      47    79      47    79      48    81
Temp          71 81 59   48 74 80 58   47 71 77 57   47 71 77 57   48 73 78
Dewpt         43 42 41   38 47 43 42   40 48 44 43   39 46 41 40   38 46 44
PWind dir        NW       E     W       E     E       E     W       E    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW FW   FW FW CL FW   FW FW FW FW   FW FW FW SC   SC SC SC
PoP 12hr          0       0     5       0     5       0     5       5     5

$$
MTZ305-301000-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
929 PM MDT Fri Aug 29 2025

Date           08/29/25      Sat 08/30/25            Sun 08/31/25            Mon
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                      55          77          53          86          54
Temp                   58 57 56 59 67 75 75 65 60 56 53 61 78 85 83 69 63 58 54
Dewpt                  58 56 56 57 58 56 56 59 55 52 51 52 56 53 51 53 52 49 49
RH                    100 96100 93 73 52 52 81 84 86 93 72 47 33 33 57 67 72 83
Wind dir                E  S SW SW  W SW  E  E SE  S  S SW  W NW NW  N  S SW SW
Wind spd                4  3  3  3  5  4  4  5  5  4  4  5  6  6  6  4  2  2  3
Clouds                 OV OV B2 B1 SC SC FW FW FW FW FW FW CL CL FW FW FW FW FW
PoP 12hr                     50          20           5           0           0
QPF 12hr                   0.09        0.04           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              C  S  S        S
Tstms
Obvis                  PF PF  F


Date           09/01/25  Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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      54    77      47    75      47    79      48    82
Temp          79 84 64   55 72 74 57   48 67 74 56   48 72 77 58   49 74 79
Dewpt         53 50 52   50 53 50 49   44 47 47 47   43 49 45 45   42 47 45
PWind dir         W       E    NE       E    NE      SE     W       E    SE
Wind char        LT      LT    GN      GN    LT      LT    LT      LT    LT
Avg clouds    FW FW SC   B1 SC SC SC   SC FW FW SC   SC SC FW SC   FW FW SC
PoP 12hr          0       5    10       5     0       0     0       0     0

$$
MTZ314-301000-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
929 PM MDT Fri Aug 29 2025

Date           08/29/25      Sat 08/30/25            Sun 08/31/25            Mon
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          76          53          81          53
Temp                   57 54 53 58 68 74 74 63 57 55 53 64 78 81 79 65 59 56 54
Dewpt                  56 54 53 54 54 53 53 52 49 47 46 47 46 46 46 48 46 43 43
RH                     96100100 86 61 48 48 67 75 74 77 54 32 29 31 54 62 62 66
Wind dir               SW SW SW  W  W NW  N SE  S  S  S SW NW NW  N SE  S  S  S
Wind spd                3  3  3  3  5  5  4  5  5  5  5  4  5  6  5  3  4  4  3
Wind gust                                                     17
Clouds                 B2 B2 B2 SC SC SC CL FW FW FW FW CL CL CL CL FW FW FW FW
PoP 12hr                     50          20           5           5           0
QPF 12hr                   0.04        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs              S  C  S     S  S
Tstms                   S           S  S
Obvis                  PF  F  F


Date           09/01/25  Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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          82      53    78      49    74      48    76      49    79
Temp          78 79 60   54 74 74 57   49 69 72 54   49 72 74 55   50 75 76
Dewpt         46 47 47   43 49 51 49   45 48 46 45   42 45 43 43   39 43 46
PWind dir        NW      SE    NW       E    NE      SE     W      SE    SW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW FW   FW SC SC SC   SC SC FW FW   SC SC FW FW   FW FW FW
PoP 12hr          0       5    10      20    10       5     5       5     5
Rain shwrs                         S

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