Point Forecast Matrices
Issued by NWS Great Falls, MT

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

MTZ312-301000-
Great Falls-Cascade MT
47.47N 111.38W Elev. 3663 ft
203 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          72 71 62 59 55 54 59 72 81 82 69 62 55 53 63 79 85 86 72 63 57 54
Dewpt         59 59 57 56 54 53 53 52 46 44 47 47 44 43 43 42 40 39 43 43 42 42
RH            64 66 84 90 96 96 80 49 29 26 45 58 66 69 48 27 20 19 35 48 57 64
Wind dir       N  N  E  W  W SW  W  W NW NW SE SW SW SW SW  W NW  N  E SE SW SW
Wind spd       6  8  5  4  4  4  5  5  6  6  5  6  6  6  5  5  5  6  5  5  4  4
Clouds        B1 B2 B2 B1 B1 B1 SC FW SC FW FW FW FW FW FW CL FW FW FW FW FW FW
PoP 12hr                     50           5           0           0           0
QPF 12hr                   0.06           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     S  C  S
Tstms          S  C  S


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
203 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          70 69 59 54 51 49 56 72 80 79 66 58 53 50 61 79 84 85 69 61 54 51
Dewpt         55 54 54 53 50 48 49 49 46 46 47 45 42 40 40 41 39 40 42 43 40 40
RH            59 59 83 96 96 96 77 44 30 31 50 62 66 68 46 26 20 20 37 51 59 66
Wind dir      NE NE NE  W  W  W SW SW  W  W  W  W  W  W  W NW NW  N NE  W  W  W
Wind spd       9  9  5  3  3  3  3  6  9 10  6  8  8  9  6  6  8  9  5  3  3  4
Clouds        B1 B1 B1 SC B1 B1 FW FW FW SC SC FW FW FW CL CL FW FW SC FW SC FW
PoP 12hr                     30           5           5           0           0
QPF 12hr                   0.02        0.03           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     C  C
Tstms          S  S
Obvis                  PF 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          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
203 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          73 73 67 62 58 55 58 72 80 82 73 66 60 54 59 74 84 86 75 67 61 56
Dewpt         54 54 53 52 51 49 50 51 46 41 41 41 40 40 42 44 41 38 40 40 40 40
RH            51 51 61 70 77 80 75 48 30 23 31 40 47 59 53 34 22 18 28 37 46 55
Wind dir       N  N NW  W  W SW NE NE NW NW  S SW SW SW  S NE  N  N  S SW SW  S
Wind spd       8 10  5  3  3  3  2  5  9  9  5  5  5  4  2  4  6  6  5  3  2  2
Wind gust                                                     17
Clouds        B1 B1 SC SC SC SC FW FW FW CL FW FW FW FW FW CL FW FW FW FW FW FW
PoP 12hr                     30          10           0           0           0
QPF 12hr                   0.01           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     C  C
Tstms          C  C


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
203 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          75 75 66 60 55 51 57 69 79 79 68 60 55 50 58 73 82 83 70 61 55 50
Dewpt         52 52 49 51 50 47 48 48 44 40 41 41 40 38 41 41 37 37 38 40 38 37
RH            45 45 54 72 83 86 72 47 29 25 37 49 57 63 53 31 20 19 31 46 53 61
Wind dir      NW  N  N  S  S SE  S NW NW NW  E SE  S  S  S  W NW  N  E SE SE SE
Wind spd       6  8  5  3  3  3  2  5  6  6  5  5  4  4  2  3  5  5  5  5  5  3
Clouds        FW FW B1 B1 SC FW FW FW FW FW FW FW FW FW FW CL FW FW FW FW FW FW
PoP 12hr                     20           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
203 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          69 69 57 49 42 39 47 66 72 72 58 49 40 36 48 70 76 74 61 50 41 36
Dewpt         43 42 43 42 41 38 41 40 33 32 35 36 33 33 35 36 30 32 38 37 33 32
RH            39 37 59 77 96 96 79 38 24 23 42 61 76 89 60 29 18 21 42 61 73 85
Wind dir       W  W  W SW  N  N  N  W NW NW  N  N  N  N  N  W  W  W NE NE  E  N
Wind spd      10  9  2  1  0  0  0  5 10 10  2  0  0  0  0  2  5  5  2  1  1  0
Clouds        SC SC B1 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
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          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
203 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          74 74 62 55 50 47 53 69 76 76 65 56 50 46 54 70 78 80 66 57 51 47
Dewpt         47 47 43 45 43 41 43 45 42 40 39 38 36 34 39 42 40 41 40 39 37 35
RH            38 38 50 69 77 79 69 42 30 27 38 51 58 63 57 36 26 25 38 51 59 63
Wind dir      NW NW  N  S  S  S SW NE NW  N SE  S  S  S  S  W  W  N  E SE  S  S
Wind spd       6  8  5  5  5  5  4  4  5  5  5  5  4  5  3  2  3  4  4  5  4  5
Clouds        SC SC B1 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
203 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          66 66 61 60 58 57 59 68 75 75 65 60 56 53 61 78 85 83 69 63 58 54
Dewpt         59 61 61 60 58 57 58 59 56 56 59 55 52 51 52 56 53 51 53 52 49 49
RH            78 84100100100100 96 73 52 52 81 84 86 93 72 47 33 33 57 67 72 83
Wind dir       E  E  E  E  S SW SW  W SW  E  E SE  S  S SW  W NW NW  N  S SW SW
Wind spd       5  6  5  4  3  3  3  5  4  4  5  5  4  4  5  6  6  6  4  2  2  3
Clouds        OV B2 OV 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                   0.11        0.04           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     C  C  C  C  S  S        S
Tstms          C  C  C
Obvis                     PF 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          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
203 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          67 65 59 57 54 53 57 68 74 74 63 57 55 53 64 78 81 79 65 59 56 54
Dewpt         59 58 58 57 54 53 54 54 53 53 52 49 47 46 47 46 46 46 48 46 43 43
RH            75 78 96100100100 90 61 48 48 67 75 74 77 54 32 29 31 54 62 62 66
Wind dir      NW NW SW SW SW SW  W  W NW  N SE  S  S  S SW NW NW  N SE  S  S  S
Wind spd       4  3  3  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 OV B2 B2 B2 SC SC SC CL FW FW FW FW CL CL CL CL FW FW FW FW
PoP 12hr                     60          20           5           5           0
QPF 12hr                   0.07        0.01           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs     L  L  C  S  C  S     S  S
Tstms          C  C  C  S           S  S
Obvis               PF PF 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          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