Point Forecast Matrices
Issued by NWS Glasgow, MT

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Point Forecast Matrices
National Weather Service Glasgow MT
520 AM MDT Thu Sep 17 2026

MTZ017-172200-
Glasgow-Valley MT
48.22N 106.61W Elev. 2293 ft
520 AM MDT Thu Sep 17 2026

Date             Thu 09/17/26            Fri 09/18/26            Sat 09/19/26
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          55          79          53          67
Temp             45 49 61 71 74 65 62 60 57 61 71 77 78 66 61 58 55 56 60 63 66
Dewpt            44 46 50 52 54 53 54 55 55 57 59 58 58 56 55 54 53 54 55 55 55
RH               96 89 67 51 50 65 75 84 93 87 66 52 50 70 81 86 93 93 84 75 68
Wind dir          E  E  E SE  E  E  E  E SE SE  S  N  N  N NE NE NE NE NE  E  E
Wind spd         10 13 18 23 21 20 16 11  8  5  5  6  9 12 10 11 11 11 12 12 10
Wind gust                       31
Clouds           FW SC SC FW FW SC SC B1 B2 B1 B1 B1 B1 B2 OV OV OV OV B2 B2 B2
PoP 12hr                      0          10          10          60          60
QPF 12hr                      0           0           0        0.10        0.53
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                            C  C  L  L  L  L  L  L  L


Date               Sun 09/20/26  Mon 09/21/26  Tue 09/22/26  Wed 09/23/26
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            49    69      48    75      50    78      49    80
Temp          56   51 60 69 56   51 67 73 59   51 69 75 59   50 71 76
Dewpt         52   50 55 53 52   51 56 52 51   50 54 51 49   49 52 50
PWind dir           E     E      SE    SE      SE    SE      SE    NE
Wind char          GN    GN      GN    GN      GN    GN      LT    GN
Avg clouds    B2   B2 B2 B1 B1   SC SC SC FW   FW FW FW FW   FW FW FW
PoP 12hr           70    30       5     5       0     0       0     0
Rain shwrs     L    L  C  C

$$
MTZ020-172200-
Wolf Point-Western Roosevelt MT
48.10N 105.58W Elev. 1985 ft
520 AM MDT Thu Sep 17 2026

Date             Thu 09/17/26            Fri 09/18/26            Sat 09/19/26
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          54          82          52          69
Temp             43 48 62 72 76 65 62 59 56 62 74 80 78 66 61 57 54 58 60 64 67
Dewpt            43 44 50 53 55 54 56 56 56 57 60 59 59 57 58 56 54 57 57 57 57
RH              100 86 65 51 48 68 81 90100 84 62 49 52 73 90 96100 96 90 78 70
Wind dir          E  E  E  E  E  E  E  E SE  S  S SE NE  E NE NE NE NE  E  E  E
Wind spd          5 10 16 20 20 16 12  6  4  4  4  6  8 11  9  9 10 10 12 12 11
Wind gust                       26
Clouds           SC B1 SC B1 B1 SC B1 B1 B2 SC SC B1 B1 B2 OV OV OV OV OV OV B2
PoP 12hr                      0          20          20          70          70
QPF 12hr                      0           0           0        0.12        0.55
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S           C  C  L  L  L  L  L  L  L
Tstms                                                 S  S        S


Date               Sun 09/20/26  Mon 09/21/26  Tue 09/22/26  Wed 09/23/26
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    71      46    77      48    81      48    83
Temp          56   50 60 70 56   50 69 74 58   49 72 77 58   49 73 79
Dewpt         55   50 55 53 53   50 55 52 52   49 54 51 50   49 52 50
PWind dir           E     E       E    SE      SE    SE      SE    NE
Wind char          GN    GN      LT    LT      GN    LT      LT    LT
Avg clouds    OV   B2 B2 B1 B1   B1 B1 SC SC   SC FW FW FW   FW FW FW
PoP 12hr           70    50       5     5       0     0       0     0
Rain shwrs     L    L  C  S

$$
MTZ022-172200-
Jordan-Garfield MT
47.33N 106.95W Elev. 2661 ft
520 AM MDT Thu Sep 17 2026

Date             Thu 09/17/26            Fri 09/18/26            Sat 09/19/26
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          55          79          52          67
Temp             45 50 66 76 79 67 62 60 56 61 72 77 78 66 61 58 53 57 60 62 66
Dewpt            45 46 49 53 55 56 56 56 55 55 55 56 57 57 58 57 53 55 56 56 56
RH              100 86 54 45 44 68 81 87 96 81 55 48 48 73 90 96100 93 87 81 70
Wind dir          E  E SE SE SE  E SE  S  S  S NW  N  N  N  N  N  N NE NE NE NE
Wind spd          4  8 14 19 16 13 12  6  3  4  6  8  8  6  5  5  8  9 11 11 11
Wind gust                       27 25                                     21
Clouds           SC B1 SC B1 B1 B1 B1 B1 B1 SC SC B1 B2 OV OV OV OV OV OV OV B2
PoP 12hr                      0           5          10          80          80
QPF 12hr                      0           0           0        0.27        0.67
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                            L  L  D  D  D  D  D  D  D
Tstms                                                 S  C        S  S  S  S  S


Date               Sun 09/20/26  Mon 09/21/26  Tue 09/22/26  Wed 09/23/26
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    70      47    76      49    80      49    81
Temp          55   50 61 70 55   50 68 74 57   49 73 77 58   49 73 78
Dewpt         54   50 54 53 53   50 53 50 51   49 50 48 49   47 48 47
PWind dir          NE     E      SE    SE      SE     S       S    NW
Wind char          GN    LT      LT    LT      LT    LT      LT    LT
Avg clouds    OV   B2 B2 B1 SC   SC B1 SC FW   FW FW FW FW   FW SC FW
PoP 12hr           80    50       5     5       0     0       0     0
Rain shwrs     D    L  C  C
Tstms          S

$$
MTZ024-172200-
Sidney-Richland MT
47.70N 104.20W Elev. 1985 ft
520 AM MDT Thu Sep 17 2026

Date             Thu 09/17/26            Fri 09/18/26            Sat 09/19/26
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                      76          55          81          53          70
Temp             43 51 66 73 74 65 63 60 57 62 74 79 77 65 62 57 54 58 63 64 68
Dewpt            43 48 54 56 57 56 57 57 56 58 61 60 61 59 59 57 54 58 59 59 61
RH              100 89 65 55 55 73 81 90 96 87 64 52 58 81 90100100100 87 84 78
Wind dir         NE  E SE SE SE SE SE SE  S  S  S SE SE  E SE  E NE  E  E  E  E
Wind spd          3  9 14 21 23 18 14  9  8 10 10  8  8  9  5  4  4  6 10 12 12
Wind gust              25       28
Clouds           B1 B2 B1 SC B2 B1 B2 B1 B2 B1 FW FW B1 B2 B2 B2 OV OV B2 B2 OV
PoP 12hr                      0          20          20          60          80
QPF 12hr                      0           0           0        0.06        0.25
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          S  S  S           C  C  L  L  D  D  D  D  L
Tstms                                                 S     S  S


Date               Sun 09/20/26  Mon 09/21/26  Tue 09/22/26  Wed 09/23/26
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            49    70      47    75      48    79      49    81
Temp          57   51 63 66 55   51 69 72 57   49 72 75 58   50 74 76
Dewpt         56   51 56 56 53   51 56 55 53   49 55 54 52   50 55 53
PWind dir           E    SE      SE    SE      SE     S       S    SE
Wind char          GN    GN      LT    GN      GN    GN      GN    GN
Avg clouds    OV   B2 B2 B1 B1   SC B1 SC SC   FW SC FW FW   FW FW FW
PoP 12hr           70    50      10     5       5     0       0     0
Rain shwrs     L    L  C  C

$$
MTZ025-172200-
Glendive-Dawson MT
47.13N 104.80W Elev. 2457 ft
520 AM MDT Thu Sep 17 2026

Date             Thu 09/17/26            Fri 09/18/26            Sat 09/19/26
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          56          81          54          69
Temp             45 51 67 76 77 67 64 60 58 62 74 79 79 67 62 58 55 58 63 64 68
Dewpt            45 50 55 57 59 57 57 58 58 57 62 60 62 60 58 57 55 58 60 59 61
RH              100 96 65 52 54 70 78 93100 84 66 52 56 78 87 96100100 90 84 78
Wind dir         NE  E  E SE SE SE SE  S  S  S  S SE SE  E SE  E NE  E  E  E  E
Wind spd          4  9 14 21 21 17 14  9  8 10  8  5  8 10  6  5  5  8 11 12 12
Clouds           B1 B2 B2 B1 B2 B2 B1 SC B1 FW FW SC B1 B1 B2 OV OV OV OV B2 B2
PoP 12hr                      0          10           5          70          80
QPF 12hr                      0           0           0        0.07        0.22
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                            C  C  L  L  D  D  D  D  D
Tstms                                                 C  S  S  S


Date               Sun 09/20/26  Mon 09/21/26  Tue 09/22/26  Wed 09/23/26
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    69      48    76      49    81      50    83
Temp          57   51 63 68 56   51 69 74 56   50 73 77 58   50 76 79
Dewpt         55   51 58 56 53   51 57 55 52   50 55 53 51   50 54 53
PWind dir           E    SE      SE    SE      SE     S       S    SE
Wind char          GN    GN      LT    LT      GN    GN      LT    LT
Avg clouds    B2   B2 B2 B2 B1   B1 B1 SC SC   FW FW FW FW   FW FW FW
PoP 12hr           80    60      20    10       0     0       5     5
Rain shwrs     D    L  L  L  S

$$