Point Forecast Matrices
Issued by NWS Glasgow, MT

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

MTZ017-182200-
Glasgow-Valley MT
48.22N 106.61W Elev. 2293 ft
355 AM MDT Tue Aug 18 2026

Date             Tue 08/18/26            Wed 08/19/26            Thu 08/20/26
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                      82          56          87          57          87
Temp             53 61 74 80 80 69 63 59 57 65 79 86 85 72 66 60 58 67 81 87 85
Dewpt            50 52 52 50 50 52 53 53 53 53 51 48 47 50 49 48 49 51 52 50 49
RH               89 72 46 35 35 55 70 80 86 65 38 27 27 46 54 64 72 56 37 28 29
Wind dir          E  E  S  W NW  E SE  E  S  W  W NW NW  N NE NE NE NE NE  N  N
Wind spd          5  5  4  4  4  5  6  5  4  5  9 11  9  5  5  5  4  3  5  6  8
Clouds           SC SC FW FW SC SC SC FW B1 FW FW SC SC SC SC SC SC SC FW FW FW
PoP 12hr                     10          20           0           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               Fri 08/21/26  Sat 08/22/26  Sun 08/23/26  Mon 08/24/26
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            57    84      59    86      61    87      58    87
Temp          66   58 77 82 67   60 79 84 69   63 80 85 66   58 80 84
Dewpt         50   48 49 49 49   49 52 53 55   55 51 47 50   50 49 47
PWind dir          NE     E       E    SE      SE     W      NW    NW
Wind char          GN    GN      GN    BZ      BZ    GN      LT    LT
Avg clouds    FW   FW FW FW FW   SC B1 SC B1   B1 SC FW FW   SC SC FW
PoP 12hr            0     0       0     5      30    20      10     5
Rain shwrs                                 C    S  S
Tstms                                      S

$$
MTZ020-182200-
Wolf Point-Western Roosevelt MT
48.10N 105.58W Elev. 1985 ft
355 AM MDT Tue Aug 18 2026

Date             Tue 08/18/26            Wed 08/19/26            Thu 08/20/26
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                      82          55          89          57          89
Temp             52 61 74 80 81 70 63 59 56 65 81 87 86 72 66 60 58 68 83 88 86
Dewpt            50 52 52 49 48 50 52 51 51 53 54 47 47 49 50 49 49 51 53 50 49
RH               93 72 46 34 32 49 67 75 83 65 39 25 26 44 56 67 72 54 36 27 28
Wind dir         NE  E SW  W  W SE NE  E  S SW  W  W NW NW NE NE  N NE NE  N  N
Wind spd          3  3  2  2  1  4  4  3  2  5  9 11  8  4  3  1  1  1  5  5  6
Clouds           SC SC FW FW FW FW FW SC SC FW FW SC SC SC SC SC SC SC SC FW FW
PoP 12hr                      5          20           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                             S


Date               Fri 08/21/26  Sat 08/22/26  Sun 08/23/26  Mon 08/24/26
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            56    84      57    87      61    89      58    88
Temp          65   56 78 82 65   57 80 85 69   62 82 87 66   58 81 86
Dewpt         51   48 50 48 50   49 52 53 54   55 53 48 51   50 51 48
PWind dir          NE    NE       E     E      SE     W      NW    NW
Wind char          LT    LT      GN    GN      GN    GN      LT    LT
Avg clouds    FW   FW FW FW FW   SC SC SC B1   B1 SC SC FW   SC SC FW
PoP 12hr            0     0       5    10      30    10      10     5
Rain shwrs                                 C    C
Tstms                                      S

$$
MTZ022-182200-
Jordan-Garfield MT
47.33N 106.95W Elev. 2661 ft
355 AM MDT Tue Aug 18 2026

Date             Tue 08/18/26            Wed 08/19/26            Thu 08/20/26
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                      83          55          86          57          89
Temp             53 64 77 82 81 70 63 59 56 69 81 85 85 72 65 61 58 69 84 88 87
Dewpt            51 51 53 51 50 53 53 52 49 49 48 46 45 48 47 46 44 46 49 48 48
RH               93 63 43 34 34 55 70 78 77 49 32 26 25 42 52 58 59 44 30 25 26
Wind dir          N  N  E NW  W SE  W SW  W  W  W  W NW NW SW SW  W  E NE  N  N
Wind spd          0  0  2  2  4  3  4  4  4  6 10 11  8  2  2  2  2  1  5  5  9
Wind gust                                      20 21 18
Clouds           SC FW FW FW SC SC B1 SC SC FW FW FW FW FW FW SC SC FW FW FW FW
PoP 12hr                     10          20           0           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                    S  S
Tstms                         S


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

$$
MTZ024-182200-
Sidney-Richland MT
47.70N 104.20W Elev. 1985 ft
355 AM MDT Tue Aug 18 2026

Date             Tue 08/18/26            Wed 08/19/26            Thu 08/20/26
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                      80          55          87          57          88
Temp             51 60 73 79 80 69 63 58 55 66 82 86 86 72 66 61 57 68 83 87 86
Dewpt            51 53 54 52 50 51 51 51 52 54 55 51 51 51 52 51 50 52 53 51 53
RH              100 78 51 39 35 53 65 77 90 65 40 30 30 48 61 70 77 57 36 29 32
Wind dir          N NE NW NW  N  E  S  S  S SW  W  W NW  W NW  N  W NW  N  N  N
Wind spd          2  2  3  4  4  3  3  4  4  5  8 11  9  4  2  2  2  2  5  8 10
Wind gust                                      18 21 19
Clouds           SC FW FW FW FW SC FW SC B1 SC FW SC SC FW FW FW SC FW FW FW FW
PoP 12hr                      5          10          10           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00


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

$$
MTZ025-182200-
Glendive-Dawson MT
47.13N 104.80W Elev. 2457 ft
355 AM MDT Tue Aug 18 2026

Date             Tue 08/18/26            Wed 08/19/26            Thu 08/20/26
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                      81          57          87          57          89
Temp             54 61 73 79 81 71 64 59 57 66 81 86 86 73 66 60 57 68 83 89 88
Dewpt            52 53 55 54 52 52 52 53 54 54 54 52 51 50 51 49 49 51 53 51 52
RH               93 75 53 42 37 51 65 80 90 65 39 31 30 44 58 67 75 54 36 27 29
Wind dir         NE NE  N NW  N  E  S SW  S SW  W  W NW NW  W NW NW NE NE  N  N
Wind spd          2  2  3  3  4  4  3  4  4  6  8 12 10  4  3  3  2  1  3  5  9
Wind gust                                      19
Clouds           SC FW SC SC FW SC FW SC SC FW FW SC SC FW FW FW FW FW FW FW FW
PoP 12hr                      0          20           5           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                             S


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

$$