Point Forecast Matrices
Issued by NWS Glasgow, MT

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Point Forecast Matrices
National Weather Service Glasgow MT
1230 AM MDT Tue Aug 18 2026

MTZ017-191000-
Glasgow-Valley MT
48.22N 106.61W Elev. 2293 ft
1230 AM MDT Tue Aug 18 2026

Date           08/17/26      Tue 08/18/26            Wed 08/19/26            Thu
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          82          56          87          57
Temp                      57 54 62 74 80 80 68 63 59 57 65 79 85 85 72 66 60 58
Dewpt                     53 52 54 53 50 50 51 53 53 53 54 53 47 47 50 49 48 49
RH                        86 93 75 48 35 35 54 70 80 86 68 41 27 27 46 54 64 72
Wind dir                   E  E SE  S  W NW  E SE  E  S  W  W NW NW  N NE NE NE
Wind spd                   6  4  4  4  4  4  5  6  5  4  5  9 11  9  5  5  5  4
Clouds                    FW SC SC FW FW SC SC SC FW B1 FW FW SC SC SC SC SC SC
PoP 12hr                      0          10          20           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S  S  S
Tstms                                     S  S


Date           08/20/26  Fri 08/21/26  Sat 08/22/26  Sun 08/23/26  Mon 08/24/26
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          87      57    84      59    86      61    87      58    87
Temp          81 85 66   58 77 82 67   60 79 84 69   63 80 85 66   58 80 84
Dewpt         52 49 50   48 49 49 49   49 52 53 55   55 51 47 50   50 49 47
PWind dir        NE      NE     E       E    SE      SE     W      NW    NW
Wind char        LT      GN    GN      GN    BZ      BZ    GN      LT    LT
Avg clouds    SC FW FW   FW FW FW FW   SC B1 SC B1   B1 SC FW FW   SC SC FW
PoP 12hr          0       0     0       0     5      30    20      10     5
Rain shwrs                                       C    S  S
Tstms                                            S

$$
MTZ020-191000-
Wolf Point-Western Roosevelt MT
48.10N 105.58W Elev. 1985 ft
1230 AM MDT Tue Aug 18 2026

Date           08/17/26      Tue 08/18/26            Wed 08/19/26            Thu
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                      52          82          55          89          57
Temp                      55 52 61 74 80 80 69 63 58 56 66 81 87 87 72 66 60 58
Dewpt                     53 51 53 53 48 48 50 52 50 51 54 54 47 48 49 50 49 49
RH                        93 96 75 48 33 33 51 67 75 83 65 39 25 26 44 56 67 72
Wind dir                  NE NE  E SW  W  W SE NE  E  S SW  W  W NW NW NE NE  N
Wind spd                   4  1  1  2  2  1  4  4  3  2  5  9 11  8  4  3  1  1
Clouds                    FW SC SC FW FW FW FW FW SC SC FW FW SC SC SC SC SC SC
PoP 12hr                      5           5          20           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                         S
Tstms


Date           08/20/26  Fri 08/21/26  Sat 08/22/26  Sun 08/23/26  Mon 08/24/26
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      57    87      61    89      58    88
Temp          83 86 65   56 78 82 65   57 80 85 69   62 82 87 66   58 81 86
Dewpt         53 49 51   48 50 48 50   49 52 53 54   55 53 48 51   50 51 48
PWind dir         N      NE    NE       E     E      SE     W      NW    NW
Wind char        LT      LT    LT      GN    GN      GN    GN      LT    LT
Avg clouds    SC FW FW   FW FW FW FW   SC SC SC B1   B1 SC SC FW   SC SC FW
PoP 12hr          0       0     0       5    10      30    10      10     5
Rain shwrs                                       C    C
Tstms                                            S

$$
MTZ022-191000-
Jordan-Garfield MT
47.33N 106.95W Elev. 2661 ft
1230 AM MDT Tue Aug 18 2026

Date           08/17/26      Tue 08/18/26            Wed 08/19/26            Thu
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          55          86          57
Temp                      58 54 64 77 82 81 69 63 59 56 67 81 85 84 72 65 61 58
Dewpt                     54 52 53 53 50 49 53 53 52 49 49 49 45 45 48 47 46 44
RH                        86 93 67 43 33 33 57 70 78 77 52 33 25 26 42 52 58 59
Wind dir                   W  N  N  E NW  W SE  W SW  W  W  W  W NW NW SW SW  W
Wind spd                   1  0  0  2  2  4  3  4  4  4  6 10 11  8  2  2  2  2
Wind gust                                                  20 21 18
Clouds                    SC SC FW FW FW SC SC B1 SC SC FW FW FW FW FW FW SC SC
PoP 12hr                      5          10          20           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                S  S
Tstms                                     S


Date           08/20/26  Fri 08/21/26  Sat 08/22/26  Sun 08/23/26  Mon 08/24/26
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      57    86      60    90      61    87      58    86
Temp          84 87 66   57 80 84 68   61 82 88 70   63 82 85 67   59 81 84
Dewpt         49 48 51   48 51 48 49   49 54 55 57   54 49 46 49   48 49 48
PWind dir         N      NE     E       E    SE      SE     W      NW    NW
Wind char        LT      LT    LT      GN    GN      GN    GN      LT    LT
Avg clouds    FW FW FW   FW FW FW FW   B1 B1 SC B1   B1 SC FW SC   SC SC FW
PoP 12hr          0       0     0       5    10      30    20      10     5
Rain shwrs                                       C          S
Tstms                                            S

$$
MTZ024-191000-
Sidney-Richland MT
47.70N 104.20W Elev. 1985 ft
1230 AM MDT Tue Aug 18 2026

Date           08/17/26      Tue 08/18/26            Wed 08/19/26            Thu
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                      52          80          55          87          57
Temp                      57 53 61 73 79 79 68 62 58 55 66 81 86 85 72 66 61 57
Dewpt                     55 53 54 53 51 50 51 51 51 52 54 55 51 51 51 52 51 50
RH                        93100 78 49 38 36 54 67 77 90 65 41 30 31 48 61 70 77
Wind dir                   N  N NE NW NW  N  E  S  S  S SW  W  W NW  W NW  N  W
Wind spd                   2  2  2  3  4  4  3  3  4  4  5  8 11  9  4  2  2  2
Wind gust                                                  18 21 19
Clouds                    SC SC FW FW FW FW SC FW SC B1 SC FW SC SC FW FW FW SC
PoP 12hr                     10           5          10          10           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


Date           08/20/26  Fri 08/21/26  Sat 08/22/26  Sun 08/23/26  Mon 08/24/26
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      56    84      56    86      61    88      59    88
Temp          83 86 65   56 78 82 64   57 80 84 69   62 82 86 67   59 83 85
Dewpt         53 53 53   51 51 50 51   50 52 54 54   55 57 53 53   52 53 51
PWind dir        NW      NE    NE       E    SE      SE    SW       W    NW
Wind char        LT      LT    LT      GN    GN      BZ    GN      GN    LT
Avg clouds    SC FW FW   FW FW FW FW   SC SC SC SC   B2 B1 FW FW   SC SC FW
PoP 12hr          0       0     0       0    10      30    20      20    10
Rain shwrs                                       S    C  S     S
Tstms                                            S    S

$$
MTZ025-191000-
Glendive-Dawson MT
47.13N 104.80W Elev. 2457 ft
1230 AM MDT Tue Aug 18 2026

Date           08/17/26      Tue 08/18/26            Wed 08/19/26            Thu
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                      54          81          57          87          57
Temp                      57 54 61 73 79 80 70 63 59 57 66 80 85 86 73 66 60 57
Dewpt                     54 53 54 54 53 52 52 52 53 53 55 55 51 51 50 51 49 49
RH                        90 96 78 51 41 38 53 67 80 86 68 42 31 30 44 58 67 75
Wind dir                  NW  N  E  N NW  N  E  S SW  S SW  W  W NW NW  W NW NW
Wind spd                   2  2  2  3  3  4  4  3  4  4  6  8 12 10  4  3  3  2
Wind gust                                                  19
Clouds                    SC SC FW SC SC FW SC FW SC SC FW FW SC SC FW FW FW FW
PoP 12hr                      0           0          20           5           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                         S
Tstms


Date           08/20/26  Fri 08/21/26  Sat 08/22/26  Sun 08/23/26  Mon 08/24/26
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      58    86      60    87      63    88      60    88
Temp          83 88 67   58 78 84 67   60 80 85 71   64 82 86 67   61 82 86
Dewpt         53 52 53   52 52 51 51   50 54 57 56   56 57 53 53   51 53 52
PWind dir         N      NE    NE       E    SE      SE     W      NW    NW
Wind char        LT      LT    LT      GN    GN      GN    GN      LT    LT
Avg clouds    FW FW FW   FW FW FW FW   SC SC SC SC   B1 SC SC FW   FW SC FW
PoP 12hr          0       0     0       0     5      30    10      10    10
Rain shwrs                                       S    C
Tstms                                            S    S

$$