Point Forecast Matrices
Issued by NWS Great Falls, MT

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Point Forecast Matrices
National Weather Service Great Falls MT
651 AM MDT Sun Oct 5 2025

MTZ312-052200-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
651 AM MDT Sun Oct 5 2025

Date             Sun 10/05/25            Mon 10/06/25            Tue 10/07/25
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                      44          27          59          33          68
Temp                34 36 40 43 35 31 30 29 34 51 58 57 45 40 36 34 41 60 67 65
Dewpt               33 32 30 30 29 27 26 25 28 32 29 30 31 30 28 25 28 32 32 33
RH                  96 85 67 60 78 85 85 85 78 48 33 35 58 67 72 69 59 35 27 30
Wind dir             N  N  N  W SW SW SW SW SW SW SW SW  S SW SW  S  S SW SW SW
Wind spd            19 12  6  5  6  6  8  9 10 11 10  5  5  6  8  8 10 11 12 10
Clouds              OV OV B2 FW FW FW FW SC SC CL CL CL FW FW FW FW FW CL CL CL
PoP 12hr                     90           0           0           0           0
QPF 12hr                   0.11           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain
Snow                 L  S


Date               Wed 10/08/25  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25
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            40    71      38    62      37    69      41    70
Temp          46   41 64 66 47   39 54 57 43   37 59 64 48   42 64 63
Dewpt         30   26 31 32 32   31 36 35 32   30 35 34 33   30 37 35
PWind dir          SW    SW       W    NW      NW    SW      SW    SW
Wind char          GN    GN      LT    LT      LT    LT      LT    GN
Avg clouds    FW   CL FW FW SC   SC SC SC SC   FW FW FW FW   FW FW SC
PoP 12hr            0     0      20    10      10     5      10    20
Rain                              S                                 S

$$
MTZ303-052200-
Cut Bank-Glacier MT
48.60N 112.39W Elev. 3838 ft
651 AM MDT Sun Oct 5 2025

Date             Sun 10/05/25            Mon 10/06/25            Tue 10/07/25
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                      43          23          58          31          67
Temp                31 35 40 41 32 28 26 25 32 50 57 56 43 38 34 32 38 59 66 63
Dewpt               28 24 24 24 26 25 22 21 24 30 31 33 32 29 27 26 29 35 36 37
RH                  88 64 52 50 78 88 85 84 72 46 37 42 65 70 75 78 70 40 33 38
Wind dir             N  N NW SW  S SW SW  W  W  W  W  W  W  W  W SW SW  S SW SW
Wind spd            19 12  8  6  6  8  8  8  9 10 10  8  8  9  8  8  6 10 11 10
Clouds              OV SC FW CL FW FW FW SC FW CL CL CL FW FW FW FW FW CL CL CL
PoP 12hr                     40           0           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Snow


Date               Wed 10/08/25  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25
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            36    65      33    56      32    66      36    64
Temp          43   36 60 59 41   34 48 54 38   32 57 62 43   37 59 58
Dewpt         31   27 34 35 33   31 36 35 30   27 36 36 32   29 35 35
PWind dir          SW     W      NW     N      NW     S      SW     W
Wind char          GN    GN      GN    GN      LT    GN      GN    GN
Avg clouds    FW   FW SC FW SC   SC SC SC SC   SC FW FW FW   SC SC SC
PoP 12hr            0     5      20    20       5     5       5    20
Rain                              S  S                              S

$$
MTZ319-052200-
Helena-Lewis & Clark MT
46.61N 111.96W Elev. 3893 ft
651 AM MDT Sun Oct 5 2025

Date             Sun 10/05/25            Mon 10/06/25            Tue 10/07/25
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                      44          27          58          32          66
Temp                35 37 41 43 38 34 32 29 30 44 55 57 47 42 37 33 35 51 64 65
Dewpt               33 32 32 31 29 26 27 26 26 30 30 30 28 27 27 26 27 31 32 34
RH                  92 82 70 62 70 72 81 88 85 57 38 35 47 55 67 75 72 46 30 31
Wind dir            NW  N  N  N  W SW SW SW SW  S  S  S SW SW  S  S  S SE SE SE
Wind spd            14 14 11  6  5  4  4  4  4  3  4  4  6  8  5  5  5  4  5  5
Wind gust           26
Clouds              OV OV B2 SC FW FW FW SC SC CL CL CL CL CL CL FW CL CL CL CL
PoP 12hr                     90           0           0           0           0
QPF 12hr                   0.08           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 C  S
Snow                 C  S


Date               Wed 10/08/25  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25
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            37    68      38    61      37    68      41    66
Temp          47   37 54 66 49   38 50 59 46   37 52 66 50   41 58 62
Dewpt         29   27 31 34 31   31 35 36 33   31 36 38 34   34 40 37
PWind dir           S     S      SW    NW      NW     S      SW     S
Wind char          GN    LT      LT    LT      LT    LT      LT    LT
Avg clouds    CL   CL CL CL FW   FW SC SC SC   SC FW FW FW   FW SC B1
PoP 12hr            0     0      20    20      10     5      10    30
Rain                              S  S                           S  C

$$
MTZ326-052200-
Bozeman-Gallatin MT
45.78N 111.16W Elev. 4475 ft
651 AM MDT Sun Oct 5 2025

Date             Sun 10/05/25            Mon 10/06/25            Tue 10/07/25
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                      44          26          55          26          64
Temp                38 38 40 42 39 35 33 29 31 42 52 53 42 35 32 27 33 53 63 61
Dewpt               38 37 35 35 35 34 33 29 30 31 29 29 29 28 24 22 26 31 30 33
RH                 100 96 82 76 85 96100100 96 65 41 39 60 75 72 81 75 43 29 35
Wind dir            NW NW NW  N  S  S  S  S  S  W  W  E SE SE SE SE SE SW  S SE
Wind spd            10  8  8  8  6  3  2  2  2  2  2  2  5  5  5  5  4  2  2  2
Clouds              OV OV OV OV OV B1 B1 SC SC FW CL CL FW CL CL CL CL CL CL CL
PoP 12hr                     90          10           0           0           0
QPF 12hr                   0.17        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 D  L  S


Date               Wed 10/08/25  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25
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            31    68      35    66      34    68      39    69
Temp          41   32 57 63 46   36 56 60 42   35 57 64 47   40 61 63
Dewpt         30   26 33 32 33   30 36 35 35   32 37 37 38   35 41 39
PWind dir          SE     S       S    SW       E     S       S     S
Wind char          GN    LT      GN    LT      LT    LT      GN    LT
Avg clouds    FW   CL CL CL FW   FW SC FW FW   FW FW FW FW   FW SC B1
PoP 12hr            0     0      10    10      10     5      20    30
Rain                                                          S  S  C

$$
MTZ330-052200-
West Yellowstone-Gallatin MT
44.69N 111.11W Elev. 6644 ft
651 AM MDT Sun Oct 5 2025

Date             Sun 10/05/25            Mon 10/06/25            Tue 10/07/25
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                      44          17          51          16          57
Temp                32 42 42 40 33 28 23 20 24 42 50 48 35 27 20 17 24 49 57 54
Dewpt               32 34 32 30 29 28 23 20 24 28 21 23 24 23 20 17 22 27 23 25
RH                 100 73 67 67 85100100100100 57 31 37 64 85100100 92 42 27 32
Wind dir            NE  N  N  N  N  N NE  N  N  W  W  W  S SE  E  N  E  S SW SW
Wind spd             4  4 10 10  6  3  1  0  0  1  3  2  1  1  1  0  1  2  8  6
Clouds              OV B2 B2 B1 SC SC FW SC B1 CL FW CL FW FW FW FW FW CL CL CL
PoP 12hr                     70          20           0           0           0
QPF 12hr                   0.07           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 C  L     S
Rain shwrs                 L
Snow                 C        S
Tstms                      S
Winter Weath         Y  Y  Y


Date               Wed 10/08/25  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25
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            22    58      25    62      28    63      32    58
Temp          31   22 51 55 36   26 54 57 37   28 56 59 41   32 53 53
Dewpt         25   22 30 28 29   25 30 29 29   27 35 33 34   32 40 36
PWind dir           S     S       S     S      SE    SE       S     S
Wind char          LT    GN      LT    LT      LT    LT      GN    GN
Avg clouds    CL   CL FW CL FW   FW SC FW SC   SC SC FW FW   SC B1 B1
PoP 12hr            0     0      10    10      10    10      20    40
Rain                                                     S    S  C  C

$$
MTZ328-052200-
Dillon-Beaverhead MT
45.26N 112.55W Elev. 5357 ft
651 AM MDT Sun Oct 5 2025

Date             Sun 10/05/25            Mon 10/06/25            Tue 10/07/25
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                      47          24          55          28          63
Temp                35 41 45 43 34 30 28 26 28 43 53 54 40 33 30 29 33 53 62 60
Dewpt               35 36 34 34 33 30 28 26 28 30 27 28 26 25 23 22 25 31 29 31
RH                 100 82 65 70 96100100100100 60 36 36 57 72 75 75 72 43 28 33
Wind dir            NE NE NE NE NE NE  S  S SW SW  W SE  S  S  S  S  S SW  S  S
Wind spd            13 13 13 11  8  5  4  4  3  2  2  3  4  5  5  6  6  3  5  6
Clouds              B2 B2 SC SC FW SC SC SC SC CL CL CL FW CL CL FW CL CL CL CL
PoP 12hr                     50           0           0           0           0
QPF 12hr                   0.03           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 C  S  S
Snow                 C


Date               Wed 10/08/25  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25
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            30    66      34    65      34    68      38    66
Temp          37   31 55 61 41   34 55 59 39   34 58 63 44   38 58 59
Dewpt         27   24 32 33 30   29 35 36 31   29 36 38 35   33 40 40
PWind dir           S     S       S     E      NE     S       S    SW
Wind char          GN    GN      GN    LT      LT    LT      GN    GN
Avg clouds    FW   CL CL CL FW   FW SC FW FW   FW FW FW FW   SC SC B1
PoP 12hr            0     0       5     5       5     5      20    30
Rain                                                          S  S  C

$$
MTZ305-052200-
Havre-Hill MT
48.54N 109.76W Elev. 2585 ft
651 AM MDT Sun Oct 5 2025

Date             Sun 10/05/25            Mon 10/06/25            Tue 10/07/25
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                      51          25          62          32          71
Temp                35 42 48 48 35 31 29 28 32 52 61 59 44 40 36 33 39 61 70 67
Dewpt               30 26 20 20 20 20 23 23 26 30 27 27 26 28 27 26 29 32 31 32
RH                  82 53 33 33 54 63 78 81 78 43 27 29 49 62 69 75 67 33 23 27
Wind dir             N NW NW  W SW SW SW SW SW SW  W  W SW SW SW SW SW  S  S  S
Wind spd            16 13 12 10  6  8  9 10 11 13 11  6  6  6  6  6  6  8  9  8
Clouds              OV B2 FW FW SC FW FW FW FW CL FW FW FW FW FW FW FW CL CL CL
PoP 12hr                     20           0           0           0           0
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 S
Snow                 S


Date               Wed 10/08/25  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25
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            39    72      37    64      34    68      39    69
Temp          46   40 64 67 45   38 56 58 41   35 58 64 46   40 61 63
Dewpt         33   30 36 36 38   34 39 37 35   31 38 37 36   33 39 39
PWind dir           S    SW       N    NE       E     S       S    SW
Wind char          GN    GN      LT    LT      LT    LT      LT    GN
Avg clouds    CL   FW FW CL FW   SC SC SC FW   FW FW FW FW   FW FW SC
PoP 12hr            0     0      10    10       5     5       5    10

$$
MTZ314-052200-
Lewistown-Fergus MT
47.05N 109.46W Elev. 4144 ft
651 AM MDT Sun Oct 5 2025

Date             Sun 10/05/25            Mon 10/06/25            Tue 10/07/25
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                      43          24          58          31          67
Temp                36 39 40 40 33 29 27 28 37 51 57 54 41 37 35 33 42 62 66 62
Dewpt               35 33 33 29 30 26 25 26 29 27 25 28 28 27 24 22 26 30 30 33
RH                  96 79 76 64 89 88 92 92 72 39 29 36 59 67 64 63 53 30 26 33
Wind dir             N  N NW NW SW  S  S  S SW  W  W  W  S  S  S  S  S  S  S  S
Wind spd            12 10 11  8  5  4  5  6  5  5  5  3  5  5  5  5  5  5  9  9
Clouds              OV OV B2 B1 SC FW FW FW FW CL CL CL FW FW CL FW CL CL CL CL
PoP 12hr                     70           5           0           0           0
QPF 12hr                   0.10           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain                 L  C
Snow                 L  C


Date               Wed 10/08/25  Thu 10/09/25  Fri 10/10/25  Sat 10/11/25
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            41    71      36    62      36    68      42    71
Temp          46   42 66 65 45   37 56 56 41   37 61 62 48   44 67 63
Dewpt         33   26 28 32 32   27 36 35 33   29 36 36 34   30 38 40
PWind dir           S    SW      SW     W      SE     S       S    SW
Wind char          GN    GN      LT    LT      LT    LT      GN    GN
Avg clouds    CL   CL CL CL FW   FW FW FW FW   FW SC FW FW   FW SC SC
PoP 12hr            0     0      10    10      10     5      10    20
Rain                                                                S

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