339
FOUS55 KBYZ 191848
PFMBYZ
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BILLINGS MT
1248 PM MDT SAT SEP 19 2026
MTZ235-192200-
BILLINGS-YELLOWSTONE MT
45.81N 108.53W ELEV. 3648 FT
1248 PM MDT SAT SEP 19 2026
DATE SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 60 51 62 50 70
TEMP 58 57 55 54 54 53 53 55 60 60 56 54 53 52 52 60 68 69
DEWPT 58 57 52 53 53 52 53 55 56 56 53 53 52 52 52 54 53 55
RH 100100 90 96 96 96100100 87 87 90 96 96100100 81 59 61
WIND DIR N N N N NW NW NW N N NE E SE S S S S SE E
WIND SPD 14 14 13 14 13 12 10 8 6 5 3 3 3 3 3 4 5 8
WIND GUST 25
CLOUDS OV OV OV OV OV OV OV OV B2 B2 B2 B2 OV OV B1 SC CL CL
POP 12HR 100 100 80 20 0
QPF 12HR 0.44 0.83 0.22 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D D D D L D C L C S
TSTMS C S S
OBVIS PF PF PF PF PF PF
FLOOD A A A A A A A A A
DATE TUE 09/22/26 WED 09/23/26 THU 09/24/26 FRI 09/25/26
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 77 54 79 54 81 54 80
TEMP 55 49 69 75 60 54 71 76 61 55 73 78 61 54 72 76
DEWPT 49 45 53 52 47 46 50 52 48 46 50 51 45 43 49 51
PWIND DIR SE SW E SW S SW SE SW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW SC FW FW SC B1 SC FW FW SC FW FW FW SC SC
POP 12HR 0 0 5 10 5 0 0 0
MTZ065-192200-
LIVINGSTON-PARK MT
45.70N 110.47W ELEV. 4656 FT
1248 PM MDT SAT SEP 19 2026
DATE SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 59 43 66 42 74
TEMP 56 56 53 50 47 45 47 57 64 64 55 51 47 43 48 66 73 71
DEWPT 49 48 47 47 47 45 45 46 44 43 43 44 43 41 41 46 41 41
RH 77 74 80 89100100 93 67 48 46 64 77 86 93 77 48 31 34
WIND DIR E E E E W NW SW W E E E S SW W SW W NW NE
WIND SPD 6 6 5 2 2 3 5 3 3 4 3 2 3 4 4 2 3 6
CLOUDS OV OV OV B2 OV B2 B2 B1 B1 SC SC B1 B2 B2 FW CL CL CL
POP 12HR 100 60 20 5 0
QPF 12HR 0.10 0.05 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D L C C C S
TSTMS C
OBVIS PF PF
FLOOD A A A A A A A A A
DATE TUE 09/22/26 WED 09/23/26 THU 09/24/26 FRI 09/25/26
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 45 78 49 78 48 81 49 81
TEMP 54 45 70 75 58 49 71 75 58 49 73 77 59 49 73 76
DEWPT 43 38 41 39 39 38 41 40 41 40 42 40 39 38 40 39
PWIND DIR S W S W SW SW S SW
WIND CHAR LT LT LT LT GN GN GN LT
AVG CLOUDS FW FW FW SC SC SC B1 FW FW FW FW FW FW FW SC SC
POP 12HR 0 0 5 5 5 0 0 5
MTZ032-192200-
MILES CITY-CUSTER MT
46.42N 105.90W ELEV. 2628 FT
1248 PM MDT SAT SEP 19 2026
DATE SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 65 53 61 49 69
TEMP 62 62 59 57 56 55 54 57 59 59 56 54 52 51 53 63 66 68
DEWPT 61 62 59 57 56 55 54 57 58 57 56 54 52 51 53 55 54 57
RH 97100100100100100100100 96 93100100100100100 75 65 68
WIND DIR NE NE NE NE E NE E E E E E E E E SE SE SE SE
WIND SPD 13 13 13 11 11 11 11 12 11 9 8 6 5 5 8 11 10 11
CLOUDS OV OV OV OV OV OV OV OV OV OV OV B1 B2 B1 B1 B1 SC FW
POP 12HR 90 100 100 20 5
QPF 12HR 0.51 0.53 0.17 0.01 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D D L L D D L L L S
TSTMS C C S
OBVIS PF PF PF PF
FLOOD A A A A A A A A A
DATE TUE 09/22/26 WED 09/23/26 THU 09/24/26 FRI 09/25/26
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 77 53 78 53 82 56 83
TEMP 55 50 68 75 59 54 71 76 59 53 75 79 63 56 76 79
DEWPT 52 50 55 55 55 54 56 56 55 51 52 51 49 49 51 50
PWIND DIR SE SE SE SE SE S SE SE
WIND CHAR GN GN GN LT LT LT GN GN
AVG CLOUDS FW FW FW FW FW FW SC SC SC FW SC CL FW FW SC FW
POP 12HR 0 0 5 10 5 5 0 0
MTZ033-192200-
BAKER-FALLON MT
46.38N 104.24W ELEV. 2969 FT
1248 PM MDT SAT SEP 19 2026
DATE SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 65 48 61 44 67
TEMP 63 61 56 54 54 51 53 58 59 56 52 50 50 48 52 64 66 62
DEWPT 54 56 55 54 54 51 53 54 54 53 52 50 50 48 50 52 51 51
RH 72 84 96100100100100 86 83 90100100100100 93 65 58 67
WIND DIR E E E E E E E E E E E E SE SE SE SE SE SE
WIND SPD 13 13 14 12 13 13 16 17 16 13 11 9 9 9 12 16 17 17
WIND GUST 27 27 24
CLOUDS OV OV OV OV OV OV OV OV OV OV OV B2 B2 OV B2 B1 B1 SC
POP 12HR 70 90 90 40 5
QPF 12HR 0.08 0.27 0.26 0.02 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L L L L D L D D C C S
TSTMS
FLOOD A A A A A A A A A
DATE TUE 09/22/26 WED 09/23/26 THU 09/24/26 FRI 09/25/26
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 44 73 48 79 50 83 52 84
TEMP 50 45 67 70 55 52 73 73 57 53 78 78 60 55 78 78
DEWPT 49 45 52 52 52 52 54 55 54 52 51 49 50 50 51 50
PWIND DIR SE SE SE SE SE S SE SE
WIND CHAR BZ BZ BZ GN LT LT GN BZ
AVG CLOUDS SC SC SC FW FW FW SC B1 B1 SC SC FW FW FW SC FW
POP 12HR 0 0 5 30 30 0 5 5
RAIN SHWRS C C
TSTMS S S
WYZ199-192200-
SHERIDAN-SHERIDAN WY
44.80N 106.96W ELEV. 4019 FT
1248 PM MDT SAT SEP 19 2026
DATE SAT 09/19/26 SUN 09/20/26 MON 09/21/26
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 65 46 62 44 70
TEMP 62 60 53 51 50 48 51 57 59 58 52 50 48 46 51 63 67 68
DEWPT 57 57 53 51 50 48 51 53 52 53 52 50 48 46 48 50 49 52
RH 84 90100100100100100 86 78 83100100100100 89 62 52 57
WIND DIR NW NW NW NW W W NW NW NW NW W N N N N E E E
WIND SPD 4 6 5 4 4 4 5 9 9 4 1 0 0 0 0 3 3 4
CLOUDS OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 SC FW FW FW
POP 12HR 100 80 80 60 10
QPF 12HR 0.38 0.19 0.10 0.07 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D D L C C C C C L L C
TSTMS C C S S S
OBVIS PF PF PF PF PF PF F F F F
FLOOD A A A A A A A A A
DATE TUE 09/22/26 WED 09/23/26 THU 09/24/26 FRI 09/25/26
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 42 77 48 78 46 82 48 83
TEMP 48 42 70 74 53 49 72 74 53 47 76 78 55 48 76 78
DEWPT 46 40 46 47 43 41 46 48 44 40 43 44 39 38 42 44
PWIND DIR S E S NW SW SE S SE
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW SC B1 SC FW FW FW CL FW FW SC FW
POP 12HR 0 0 10 20 5 5 0 0
RAIN SHWRS S S
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page