Point Forecast Matrices
Issued by NWS Great Falls, MT

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

MTZ312-302200-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
253 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          54          89          53          88
Temp          53 52 57 71 79 83 69 62 58 55 64 81 86 88 73 64 57 54 62 78 85 87
Dewpt         53 52 53 51 45 45 48 47 46 45 45 45 39 39 41 42 41 41 43 44 42 41
RH           100100 86 49 30 26 47 58 64 69 50 28 19 18 31 45 55 61 50 30 22 20
Wind dir      SW SW SW  W NW NW SE SW SW SW SW  W NW  N  E SE SW SW SW NE NE NE
Wind spd       5  5  5  6  6  6  5  6  6  6  5  5  5  5  5  5  4  4  2  2  6 10
Clouds        B1 B2 SC FW FW SC SC FW FW FW FW FW FW FW SC FW 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         PF PF


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          GN    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
253 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                      82          49          86          50          87
Temp          44 44 52 70 79 80 67 59 54 51 61 80 85 84 69 60 53 50 61 80 84 86
Dewpt         44 44 45 48 46 45 46 45 43 40 41 41 39 38 42 42 41 41 41 44 42 41
RH           100100 77 45 31 29 47 60 66 66 48 25 20 19 37 51 64 71 48 28 23 21
Wind dir      NW NW  W  W  W  W NW  W  W  W  W NW NW  N NE NW  W NW NW SE SE  E
Wind spd       4  4  4  5  9 11  8  8  8  8  5  6  8  9  5  4  4  4  3  5  8  8
Clouds        B1 SC SC FW FW SC SC FW FW FW CL FW FW FW SC FW SC FW CL CL FW FW
PoP 12hr                      5          10           0           0           0
QPF 12hr                      0        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Obvis         PF PF


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           E     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
253 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          54          87          56          88
Temp          59 55 59 71 79 81 72 66 61 56 59 75 84 86 75 68 62 57 61 76 85 88
Dewpt         54 52 53 50 46 42 43 43 43 42 43 46 42 39 41 41 41 41 43 45 43 40
RH            83 90 80 47 31 25 35 43 51 59 55 36 23 19 29 37 46 55 51 33 23 19
Wind dir       W SW  N  N NW NW SW  W  W  W  S  E NE NE SE SW SW SW SE NE NE NE
Wind spd       3  3  2  5  9 10  5  5  5  4  2  3  6  6  5  3  2  1  1  3  5  8
Clouds        SC SC FW FW SC FW FW FW FW FW FW CL FW FW FW SC FW FW FW FW FW FW
PoP 12hr                     10           0           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          NW    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
253 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                      80          49          84          50          88
Temp          56 53 59 71 78 79 68 59 55 51 58 73 81 83 70 62 55 51 58 74 85 86
Dewpt         52 50 52 49 44 42 42 44 42 40 42 42 36 35 38 40 39 39 42 42 41 41
RH            86 89 78 46 30 27 39 57 61 66 55 33 20 18 31 44 55 63 55 32 21 21
Wind dir       S  S  S NW NW NW SE  S  S  S  S NW NW  N  E SE SE SE SE NW NW  N
Wind spd       3  3  2  5  6  6  4  4  4  4  2  2  5  5  5  5  5  4  1  2  5  8
Clouds        SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW CL FW FW
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            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
253 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                      73          36          77          37          79
Temp          50 48 55 70 73 72 59 49 41 36 47 68 75 76 61 52 42 37 49 74 79 77
Dewpt         50 48 49 46 33 33 38 37 35 34 36 36 30 32 38 37 35 34 37 39 30 33
RH           100100 80 42 23 24 45 63 79 92 65 31 19 20 42 56 76 89 63 28 17 20
Wind dir       N  N  N NW  W NW  N  N  N  N  N  W  W  W NE NE  N  N  N  E NW  N
Wind spd       0  0  0  5 10 10  2  0  0  0  0  2  4  4  1  1  0  0  0  2  5  5
Clouds        SC FW FW FW FW FW FW FW FW FW FW CL FW FW FW FW FW FW FW FW FW SC
PoP 12hr                      5           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Obvis          F  F


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
253 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          46          81          47          82
Temp          53 49 57 70 77 76 64 56 51 47 54 70 79 80 66 58 51 48 55 71 80 81
Dewpt         49 46 50 46 43 40 42 39 38 35 39 42 39 39 38 37 36 35 40 42 41 41
RH            86 89 77 42 30 27 45 53 61 63 57 36 24 23 36 45 56 60 57 35 25 24
Wind dir       S  S SW SW NW NW  E  S  S  S SW  W NW NE  E SE  S  S SW  N  N  N
Wind spd       5  5  4  4  5  6  4  5  4  5  2  2  3  4  4  5  5  4  2  2  4  5
Clouds        FW FW CL 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
253 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          53          87          54          87
Temp          55 54 58 67 75 76 65 60 57 55 61 79 86 84 70 63 58 54 63 80 86 85
Dewpt         54 54 55 57 56 55 58 55 53 51 51 55 51 51 53 51 50 50 51 55 50 50
RH            96100 90 70 52 48 78 84 86 86 70 44 30 32 55 65 75 86 65 42 29 30
Wind dir      SE SW SW SW  W SW  E  S SW SW SW  W  W NW NE  S SW  W  W  N  N NE
Wind spd       4  4  5  5  4  3  5  5  4  5  5  8  6  5  4  2  2  2  2  3  4  5
Clouds        B2 OV B2 B1 SC FW SC FW SC FW FW FW 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  S  S  C
Obvis         PF PF
Heat index                                                             80
Max heat                                             84    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
253 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          52          83          53          83
Temp          57 56 60 69 73 72 62 57 54 54 65 79 82 80 67 60 56 54 64 78 82 80
Dewpt         57 55 57 54 52 51 52 50 47 47 50 49 48 48 48 45 43 43 47 49 49 49
RH           100 96 90 59 48 48 70 77 77 77 58 35 31 33 50 58 62 66 54 36 32 34
Wind dir       W SW  W  W NW  N SE  S  S  S SW  W NW  N SE  S  S  S SW  N  N NE
Wind spd       3  3  3  5  5  4  5  5  5  5  4  5  6  5  4  4  4  3  2  3  5  5
Clouds        B2 B2 B2 B1 SC FW FW FW FW FW CL CL CL CL FW FW FW FW FW CL CL CL
PoP 12hr                     40           5           0           0           0
QPF 12hr                   0.02           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     S  S  C  C  S
Tstms                   S  S
Obvis          F  F
Heat index                                           80
Max heat                                             81                      81


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