Point Forecast Matrices
Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
841 AM MDT Sat Aug 30 2025

MTZ312-302200-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
841 AM MDT Sat Aug 30 2025

Date             Sat 08/30/25            Sun 08/31/25            Mon 09/01/25
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          52          88          51          88
Temp                55 70 80 82 69 61 56 52 62 80 86 86 72 63 56 52 60 77 85 87
Dewpt               50 49 45 46 49 49 48 46 47 43 39 37 44 45 43 43 45 41 40 40
RH                  83 47 29 28 49 65 74 80 58 27 19 18 37 52 62 71 58 28 20 19
Wind dir            SW  W  W  W SW SW SW SW SW  W NW  N  E SE SW SW SW NE NE NE
Wind spd             5  6  6  6  5  6  6  6  6  5  5  6  6  5  4  4  2  2  6 10
Clouds              SC FW FW SC FW FW FW FW FW FW FW FW SC FW 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               Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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            53    87      53    83      53    85      52    88
Temp          63   54 76 86 62   53 73 82 62   54 79 83 61   53 79 87
Dewpt         43   43 46 45 49   47 50 45 47   45 47 40 43   42 43 40
PWind dir           E     W      NE     N      SE    NW       E    SW
Wind char          LT    LT      GN    LT      LT    LT      LT    LT
Avg clouds    FW   FW FW FW SC   SC SC FW FW   SC SC FW FW   FW FW FW
PoP 12hr            5     0       5     0       0     0       5     5

$$
MTZ303-302200-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
841 AM MDT Sat Aug 30 2025

Date             Sat 08/30/25            Sun 08/31/25            Mon 09/01/25
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                      81          49          85          48          87
Temp                50 69 79 79 66 58 53 51 61 79 84 83 68 59 52 48 60 79 85 86
Dewpt               44 46 43 44 46 47 45 43 43 39 37 38 43 44 42 40 42 43 40 40
RH                  80 44 28 29 48 67 74 74 51 24 19 20 40 57 69 74 51 28 20 20
Wind dir            SW SW  W  W  W  W  W NW  W NW NW  N NE NW NW NW NW SE SE  E
Wind spd             4  5 10 12  8  9  9  9  5  6  8  9  6  4  4  4  3  5  8  6
Clouds              SC FW FW SC SC FW FW FW FW FW FW FW SC FW FW FW CL CL FW FW
PoP 12hr                     10          10           0           0           0
QPF 12hr                      0        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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      49    81      49    83      48    85
Temp          62   52 75 82 59   49 72 80 59   50 76 82 57   49 78 83
Dewpt         42   43 48 47 50   46 48 43 43   42 44 40 41   39 40 38
PWind dir          NE     N      NE    SE      SE     N      SE     S
Wind char          LT    GN      GN    LT      LT    LT      LT    LT
Avg clouds    SC   SC SC SC SC   SC SC FW FW   SC SC FW FW   FW FW FW
PoP 12hr            5     0       5     0       0     0       5     5

$$
MTZ319-302200-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
841 AM MDT Sat Aug 30 2025

Date             Sat 08/30/25            Sun 08/31/25            Mon 09/01/25
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          52          86          53          88
Temp                57 70 80 82 72 65 60 54 58 74 83 86 73 67 59 54 59 75 84 87
Dewpt               53 51 48 46 44 45 46 45 47 44 41 39 43 45 44 44 48 42 41 40
RH                  86 51 33 28 37 48 60 71 67 34 23 19 34 45 57 69 67 31 22 19
Wind dir             N NE NW NW  W SW  W SW SW  E  E  E  S  W  W  S SE  E NE NE
Wind spd             2  5 10 10  5  5  5  4  2  3  6  5  5  3  2  2  1  3  5  6
Clouds              SC FW SC FW FW FW FW FW FW FW FW FW FW SC 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               Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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            56    87      56    82      54    85      53    85
Temp          69   57 75 86 69   56 73 82 66   55 73 85 66   54 73 84
Dewpt         42   43 45 41 46   45 50 42 45   43 45 40 43   41 43 40
PWind dir          SE    NE      NW     N      NW    NE      NW    SE
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW   FW FW FW SC   FW FW FW FW   FW FW FW FW   FW SC SC
PoP 12hr            0     0       0     5       0     0       5     5

$$
MTZ326-302200-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
841 AM MDT Sat Aug 30 2025

Date             Sat 08/30/25            Sun 08/31/25            Mon 09/01/25
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          47          84          48          86
Temp                56 70 77 78 67 58 53 49 56 72 82 82 69 60 54 49 57 74 84 85
Dewpt               51 48 44 42 43 46 45 42 43 41 36 35 37 39 38 38 41 40 39 38
RH                  83 45 31 28 42 64 74 77 62 33 19 18 31 46 54 66 55 29 20 19
Wind dir             E NW NW NW SE  S  S  S SE NW NW  N  E SE SE SE SE NW NW  N
Wind spd             2  5  6  6  5  4  4  4  2  3  4  4  5  5  5  4  1  2  5  6
Clouds              SC FW FW FW FW FW FW FW FW CL FW FW FW FW FW FW FW CL 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               Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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      51    81      49    82      48    84
Temp          64   51 74 85 64   52 72 80 60   50 74 80 60   49 75 81
Dewpt         44   41 43 41 45   43 47 44 45   41 46 39 42   38 42 38
PWind dir           E    NE       E    NE       E    SW       E    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW   FW FW FW FW   FW FW FW FW   FW FW FW FW   FW SC SC
PoP 12hr            0     0       0     5       0     0       5     5

$$
MTZ330-302200-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
841 AM MDT Sat Aug 30 2025

Date             Sat 08/30/25            Sun 08/31/25            Mon 09/01/25
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                      72          34          76          35          79
Temp                47 64 71 70 58 47 39 34 45 67 75 76 61 50 40 35 47 72 78 76
Dewpt               41 41 31 30 32 30 29 27 29 34 30 32 34 33 28 27 32 38 30 32
RH                  79 43 23 22 37 51 67 75 53 29 19 20 36 52 62 72 56 29 17 20
Wind dir            SE  W  W NW NW NE  E SE  S  W  W NW  N NE  E  N  N  E NW NW
Wind spd             1  5 10 10  3  1  1  1  1  2  4  4  2  2  1  0  0  2  5  5
Clouds              FW FW FW FW FW FW FW FW FW CL FW FW FW FW FW FW FW FW FW SC
PoP 12hr                      5           5           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date               Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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    78      40    76      39    75      38    76
Temp          52   38 72 75 53   40 71 74 52   39 69 73 51   38 70 74
Dewpt         39   36 40 36 40   38 39 35 41   37 38 33 39   36 38 34
PWind dir          NE     N      NE     N      NE    NW       N     W
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC   FW FW FW SC   FW FW FW FW   FW SC FW SC   SC SC SC
PoP 12hr            0     5       5     5       5     5       5    10

$$
MTZ328-302200-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
841 AM MDT Sat Aug 30 2025

Date             Sat 08/30/25            Sun 08/31/25            Mon 09/01/25
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          44          80          45          83
Temp                54 69 76 76 63 55 50 45 53 69 78 80 66 56 49 45 53 70 80 81
Dewpt               48 43 38 38 40 38 36 34 37 39 34 34 34 31 29 27 32 38 37 37
RH                  80 39 25 25 43 53 58 65 54 33 20 19 30 38 46 49 44 31 21 21
Wind dir            SW SW  N  N  E  S  S  S SW SW NE NE  E SE  S  S  S  N  N  N
Wind spd             5  4  5  6  5  5  5  6  3  2  3  4  5  5  5  4  2  2  4  5
Clouds              FW CL FW FW FW FW FW FW CL FW FW FW FW FW FW FW FW FW FW FW
PoP 12hr                      0           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Obvis                            K  H  H  H  H  H  H  H


Date               Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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    82      48    81      47    80      48    81
Temp          58   48 71 81 58   48 71 80 58   48 72 78 58   49 73 79
Dewpt         39   38 45 44 41   40 47 45 43   39 47 43 43   40 46 45
PWind dir           E     W       E     W       E     W       S    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW   FW FW FW FW   FW FW FW FW   FW FW FW SC   SC FW SC
PoP 12hr            0     0       0     5       0     5       5    10

$$
MTZ305-302200-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
841 AM MDT Sat Aug 30 2025

Date             Sat 08/30/25            Sun 08/31/25            Mon 09/01/25
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          51          86          53          87
Temp                61 68 73 76 63 58 54 51 59 75 83 83 69 62 56 53 61 80 86 84
Dewpt               58 59 55 55 56 54 50 49 50 52 49 48 53 52 49 50 50 53 49 49
RH                  90 73 53 48 78 86 86 93 72 45 31 30 57 70 77 89 67 39 28 30
Wind dir            SW SW  W SE  E SE SE SW SW  W  W NW NE  S SW  W  W  N  N NE
Wind spd             5  5  4  3  6  5  5  5  6  8  8  8  4  3  3  2  2  3  4  5
Clouds              OV B2 SC FW FW SC FW FW FW CL CL FW FW FW FW FW CL CL FW FW
PoP 12hr                     30           5           0           0           0
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           C  C
Heat index                                                             80
Max heat                                             83    80          80    84


Date               Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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            54    82      50    78      49    82      49    82
Temp          64   55 76 80 60   51 70 77 58   50 75 79 58   50 75 79
Dewpt         51   50 54 52 53   48 51 49 49   45 51 48 49   44 49 46
PWind dir           E    NE      NE     E      SE     W       E    SE
Wind char          LT    LT      GN    LT      LT    LT      LT    LT
Avg clouds    FW   SC SC SC SC   B1 FW FW SC   SC SC FW FW   FW FW FW
PoP 12hr            5     5       5     0       0     0       0     0

$$
MTZ314-302200-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
841 AM MDT Sat Aug 30 2025

Date             Sat 08/30/25            Sun 08/31/25            Mon 09/01/25
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          50          83          51          83
Temp                60 69 74 74 61 56 54 51 62 76 81 80 66 58 54 52 62 77 82 80
Dewpt               57 51 49 50 52 51 49 45 47 44 43 45 49 46 44 43 48 46 47 47
RH                  90 53 41 43 72 83 83 80 58 32 26 29 54 64 69 71 60 33 29 31
Wind dir             W  W NW  N SE  S  S  S SW NW NW  N SE  S  S  S SW  N  N  N
Wind spd             3  5  6  5  5  5  5  5  4  5  6  5  4  4  4  3  2  3  5  5
Clouds              B1 B1 SC FW FW FW FW FW CL CL FW FW FW FW FW FW FW CL CL CL
PoP 12hr                     30          10           0           0           0
QPF 12hr                   0.02           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs           C  C  S
Tstms                   S  S


Date               Tue 09/02/25  Wed 09/03/25  Thu 09/04/25  Fri 09/05/25
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            52    81      50    74      49    78      49    80
Temp          59   53 77 78 58   51 69 72 55   50 72 75 55   50 75 78
Dewpt         46   43 47 49 51   47 50 48 47   43 47 46 45   41 43 47
PWind dir          SE     E       E     E      SE     W      SE    SW
Wind char          LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW   FW FW FW SC   B1 SC FW FW   SC SC FW FW   FW FW FW
PoP 12hr            5    10      10     5       0     0       5     5

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