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Issued by NWS Billings, MT

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Point Forecast Matrices
National Weather Service Billings MT
443 PM MDT Fri Aug 21 2026

MTZ235-221000-
Billings-Yellowstone MT
45.81N 108.53W Elev. 3648 ft
443 PM MDT Fri Aug 21 2026

Date           08/21/26      Sat 08/22/26            Sun 08/23/26            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                      65          91          66          95          64
Temp             89 80 74 70 66 68 79 89 88 79 73 70 67 72 88 93 88 76 71 67 64
Dewpt            46 48 48 48 50 50 51 50 52 55 55 56 56 55 53 51 52 53 53 50 49
RH               23 33 40 45 56 52 38 26 29 44 53 61 68 55 30 24 29 45 53 54 58
Wind dir         NE NE NE NE NE NE SE  S SW  W  W SW SW SW  W  W NW SW  W NW  W
Wind spd         13 11 12 11  6  5  4  5  6  6  8  9 10 10 10 12 12  8  8  6  4
Clouds           FW B1 B1 B1 B1 B1 B1 B2 B2 B2 B1 B1 B1 FW SC SC B1 B1 SC FW SC
PoP 12hr                      5          20          40          20          40
QPF 12hr                      0           0        0.01           0        0.01
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                             S  C  C  C  C        S  S  C  C
Tstms                                  S  S  S                 S  S


Date           08/24/26  Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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      63    87      63    91      62    89      61    88
Temp          81 85 70   63 79 85 70   63 83 86 70   63 82 85 69   61 80 85
Dewpt         47 41 43   45 47 44 46   48 49 45 49   48 47 41 44   44 44 39
PWind dir         W      NE    NE       E    SW      SE     W      NW     W
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    SC FW FW   B1 B1 FW FW   SC SC SC SC   B1 B1 SC SC   B1 SC SC
PoP 12hr          0       5     5       5    10      20     5      20     5
Rain shwrs                                       S             S

$$
MTZ065-221000-
Livingston-Park MT
45.70N 110.47W Elev. 4656 ft
443 PM MDT Fri Aug 21 2026

Date           08/21/26      Sat 08/22/26            Sun 08/23/26            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                      59          89          56          90          53
Temp             91 76 71 64 60 64 78 85 83 70 66 61 58 64 82 88 83 69 63 56 53
Dewpt            39 44 47 47 47 48 47 48 50 55 57 55 53 52 51 49 48 48 48 45 45
RH               16 32 42 54 62 56 33 28 32 59 73 81 83 65 34 26 30 47 58 66 74
Wind dir         NE  E  E  E SE  E  N  E SE  W  W  W  W  W SW  W SW SW  W  W  W
Wind spd         12 17 13  6  4  6  5 10  8  9 10 10 10  9 10 16 14 10  6  6  6
Wind gust                                                  20 26
Clouds           SC B1 B1 B1 B1 B2 B2 B1 B2 OV B2 SC B1 SC B1 B1 B1 SC FW FW FW
PoP 12hr                      5          40          60          30          20
QPF 12hr                      0        0.01        0.07           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                          C  C  L  L  S  S        C  C  S  S
Tstms                               C  C  C  S              S  C  S
Obvis             K  K


Date           08/24/26  Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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      52    86      53    88      52    86      50    85
Temp          80 83 63   53 77 83 63   53 81 82 63   53 79 81 61   50 78 81
Dewpt         45 34 44   45 46 40 47   47 45 39 46   45 42 35 41   41 39 34
PWind dir         W      SE     W      SE    SW       S     W      SW     W
Wind char        LT      LT    LT      LT    LT      GN    GN      LT    LT
Avg clouds    FW FW SC   B1 SC FW SC   SC SC SC B1   B1 SC FW B1   SC SC FW
PoP 12hr          5      20    20      20    10      20    10      20     5
Rain shwrs           S       S  S  S             S             S
Tstms                           S  S             S

$$
MTZ032-221000-
Miles City-Custer MT
46.42N 105.90W Elev. 2628 ft
443 PM MDT Fri Aug 21 2026

Date           08/21/26      Sat 08/22/26            Sun 08/23/26            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                      64          92          68          95          66
Temp             88 76 71 66 64 70 83 90 89 80 76 71 68 74 87 94 92 79 73 68 66
Dewpt            47 49 50 50 51 51 53 51 53 56 59 60 61 62 63 59 54 58 59 56 53
RH               24 39 47 56 63 51 36 26 29 44 56 68 78 66 45 31 28 49 62 65 63
Wind dir         NE NE  E  E  E SE SE SE SE SE SE SE SE  S SW  W NW NW  W NW NW
Wind spd         14 14 12 10 10 13 17 18 18 17 14 11  9  6  5  6  8  6  5  5  8
Clouds           FW SC SC SC SC FW SC SC B1 B2 B1 B1 B2 FW FW SC SC SC SC SC FW
PoP 12hr                      0           0          50          10          20
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                C  C  C  C              S  S
Tstms                                     S  S  S                 S  S


Date           08/24/26  Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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      60    87      58    91      63    89      60    89
Temp          82 84 67   60 80 84 66   59 83 89 71   63 82 86 68   60 82 85
Dewpt         43 40 45   46 47 44 47   47 49 45 50   50 51 44 48   49 50 44
PWind dir        NW       N     N      NE     E       E    SE      NE    NW
Wind char        GN      LT    LT      LT    LT      GN    GN      GN    LT
Avg clouds    FW FW FW   SC SC FW FW   FW FW FW SC   B1 B1 SC SC   B1 SC FW
PoP 12hr          0       0     0       0     5      20    10      20     5
Rain shwrs                                       S             S
Tstms                                            S

$$
MTZ033-221000-
Baker-Fallon MT
46.38N 104.24W Elev. 2969 ft
443 PM MDT Fri Aug 21 2026

Date           08/21/26      Sat 08/22/26            Sun 08/23/26            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                      56          88          61          93          61
Temp             87 72 66 60 56 67 82 86 85 75 70 66 63 70 85 91 87 74 68 65 62
Dewpt            46 47 48 47 46 46 48 48 49 50 52 54 55 58 61 60 59 61 60 57 55
RH               24 41 52 62 69 47 31 27 29 41 53 65 75 66 45 36 39 64 76 75 78
Wind dir         NE NE  E  E  E SE SE SE SE SE SE SE SE SE SE  S  E SE SE  S  W
Wind spd         12 13 11 10 10 16 18 18 19 19 19 18 16 16 13 11 12 10  8  5  6
Clouds           FW FW SC FW FW FW SC SC B2 B2 B2 B1 B1 B1 B1 B1 SC SC SC FW FW
PoP 12hr                      0           0          50          40          20
QPF 12hr                      0           0        0.01           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                      C  C  C  C  C  C  S  S
Tstms                                           S  S        S  C  S  S


Date           08/24/26  Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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          90      56    87      53    89      57    89      55    88
Temp          85 85 64   57 81 83 62   55 84 85 66   60 83 84 64   58 83 83
Dewpt         45 38 43   44 43 41 46   45 45 43 49   49 49 45 49   49 49 46
PWind dir        NW      NW    NW       N     E      SE    SE      SE    SE
Wind char        GN      LT    LT      LT    LT      GN    GN      GN    GN
Avg clouds    FW FW FW   FW SC FW FW   FW FW FW SC   SC SC SC SC   SC SC SC
PoP 12hr          0       0     0       5     5      20    20      20    20
Rain shwrs                                       S          S  S    S     S
Tstms                                            S          S  S    S     S

$$
WYZ199-221000-
Sheridan-Sheridan WY
44.80N 106.96W Elev. 4019 ft
443 PM MDT Fri Aug 21 2026

Date           08/21/26      Sat 08/22/26            Sun 08/23/26            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                      60          92          61          92          59
Temp             92 75 68 63 60 68 84 89 87 73 67 64 63 71 87 90 86 71 65 61 59
Dewpt            42 46 47 49 49 50 53 52 53 56 55 53 53 52 48 51 51 54 52 49 49
RH               18 36 47 60 67 52 34 28 31 55 65 67 70 51 26 26 30 55 63 65 69
Wind dir          N NW NW  S  S  E SE  S SE  S  S SW  S  N  N NW  W  W SW SW  W
Wind spd          9  4  4  2  3  2 13 11  9  6  4  4  2  0  5  6  6  5  4  3  3
Clouds           CL SC SC B1 B1 B2 B2 B1 B2 B1 SC SC SC FW B1 B1 SC SC FW FW FW
PoP 12hr                      0          30          20          40          10
QPF 12hr                      0        0.03           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                             S  S  S              C  C
Tstms                                  S  S  S              S  S


Date           08/24/26  Tue 08/25/26  Wed 08/26/26  Thu 08/27/26  Fri 08/28/26
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      55    85      54    88      56    88      55    87
Temp          81 83 63   56 79 82 62   55 83 85 63   57 84 84 62   55 82 83
Dewpt         47 44 47   48 47 45 48   47 46 44 48   46 43 41 45   43 41 39
PWind dir         N      SW     N      SE     E       S    NW      SW    NW
Wind char        LT      LT    LT      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW SC   B1 SC SC SC   SC SC SC SC   B1 B1 SC B1   SC SC SC
PoP 12hr         10      10    20      10    10      10    10      10    10
Rain shwrs                      S
Tstms                           S

$$