855
FOUS55 KBYZ 171708
PFMBYZ
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE BILLINGS MT
1108 AM MDT SUN MAY 17 2026
MTZ235-172200-
BILLINGS-YELLOWSTONE MT
45.81N 108.53W ELEV. 3648 FT
1108 AM MDT SUN MAY 17 2026
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26
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 55 35 51 30 66
TEMP 51 54 52 45 41 38 36 40 45 49 49 46 39 33 31 44 59 64 64
DEWPT 25 25 26 27 29 28 26 28 29 27 25 27 28 27 26 25 25 24 25
RH 36 32 36 49 62 67 67 62 53 42 39 47 64 78 81 47 27 22 22
WIND DIR NW N N N N N N N N N NE E SE SW SW SW SW SW S
WIND SPD 17 18 17 16 10 9 8 11 11 12 9 5 3 3 5 8 6 6 6
CLOUDS B2 B2 B2 B1 OV OV OV OV OV B2 B2 FW FW FW FW CL FW SC SC
POP 12HR 20 20 20 20 0
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S S S S S S
SNOWSHWRS S S S
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26 SAT 05/23/26
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 41 69 43 70 47 74 48 77
TEMP 48 42 64 65 51 44 64 69 55 49 69 70 56 49 71 75
DEWPT 29 28 28 31 36 36 35 33 36 36 37 37 39 38 38 34
PWIND DIR S W NW NW SE W NW W
WIND CHAR LT GN LT LT LT LT LT GN
AVG CLOUDS B1 SC B1 B1 B1 B1 B1 SC SC SC B1 B1 B1 SC SC SC
POP 12HR 0 30 40 10 5 20 30 10
RAIN SHWRS C C C S C
TSTMS S S S S
MTZ065-172200-
LIVINGSTON-PARK MT
45.70N 110.47W ELEV. 4656 FT
1108 AM MDT SUN MAY 17 2026
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26
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 49 26 46 25 62
TEMP 43 45 46 39 34 30 27 33 39 43 45 39 33 28 26 42 55 60 60
DEWPT 23 22 22 24 26 24 22 21 22 21 22 23 25 21 19 21 22 23 24
RH 45 40 38 54 72 78 81 61 50 41 40 52 72 75 74 43 27 24 25
WIND DIR W NW N N W W W N NE E E SE SW W W W W W W
WIND SPD 16 17 19 14 9 8 8 9 6 8 5 3 3 4 6 5 10 10 6
WIND GUST 18 18
CLOUDS B2 B2 B2 OV B2 OV B1 B2 B2 B2 B1 SC FW FW FW FW SC SC B1
POP 12HR 50 30 40 20 0
QPF 12HR 0.01 0.06 0.02 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C C C C S
SNOWSHWRS C S S C S C C S
TSTMS S
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26 SAT 05/23/26
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 35 63 36 67 41 70 41 74
TEMP 43 36 57 59 45 39 61 65 51 44 64 65 51 44 68 72
DEWPT 29 26 27 30 33 32 31 32 35 33 33 35 36 34 32 32
PWIND DIR SW W W W SW W W W
WIND CHAR LT GN LT LT LT GN GN GN
AVG CLOUDS B1 B1 B1 B1 B1 SC B1 SC SC B1 B1 B1 B1 SC SC SC
POP 12HR 10 40 40 20 20 40 30 20
RAIN SHWRS C C C S S S S C C S S
TSTMS S S
MTZ032-172200-
MILES CITY-CUSTER MT
46.42N 105.90W ELEV. 2628 FT
1108 AM MDT SUN MAY 17 2026
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26
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 57 35 48 31 63
TEMP 52 55 54 47 42 38 36 39 42 47 47 43 39 34 32 42 54 61 60
DEWPT 35 33 34 35 35 33 32 32 32 31 32 32 34 32 31 31 31 28 27
RH 52 43 46 63 76 82 85 76 67 53 56 65 82 92 96 65 41 28 28
WIND DIR NW NW NW NW NW NW NW NW NW N N N N NW NW W W W SE
WIND SPD 21 20 19 16 13 13 12 13 13 13 11 6 3 3 2 3 4 3 4
WIND GUST 25
CLOUDS B2 B2 B2 OV B1 B2 OV OV OV B2 OV B2 B1 SC SC FW FW FW FW
POP 12HR 20 20 30 20 0
QPF 12HR 0 0 0.01 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S C S
OBVIS PF
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26 SAT 05/23/26
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 37 71 42 71 45 75 46 76
TEMP 45 38 65 67 51 43 65 69 54 46 69 71 55 48 69 74
DEWPT 30 29 34 35 41 40 38 36 39 39 41 40 43 41 41 39
PWIND DIR SE SW NW NW E S W W
WIND CHAR LT LT LT LT LT GN GN GN
AVG CLOUDS SC SC B1 SC B1 B1 B1 SC SC SC SC SC SC SC SC FW
POP 12HR 0 5 30 10 10 10 20 10
RAIN SHWRS C S S S
TSTMS S S
MTZ033-172200-
BAKER-FALLON MT
46.38N 104.24W ELEV. 2969 FT
1108 AM MDT SUN MAY 17 2026
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26
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 57 32 45 29 58
TEMP 53 56 54 46 40 36 33 37 40 44 44 39 36 32 30 40 49 56 55
DEWPT 36 34 32 36 36 34 30 30 31 31 31 32 33 31 30 28 27 26 25
RH 52 43 43 68 85 92 89 75 70 60 60 76 89 96100 62 42 31 31
WIND DIR NW NW NW NW NW NW NW NW NW NW N N NW N N NW W NW W
WIND SPD 21 23 19 14 12 13 13 13 13 14 12 9 3 0 0 4 6 5 5
WIND GUST 24
CLOUDS OV B2 B2 B2 B2 OV OV OV OV OV OV OV OV OV B1 SC SC FW SC
POP 12HR 5 30 40 40 10
QPF 12HR 0 0 0.02 0.03 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C S S C S C C C S
SNOWSHWRS S S
OBVIS PF PF
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26 SAT 05/23/26
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 32 69 39 68 40 72 43 74
TEMP 39 33 64 67 48 42 64 66 49 43 68 70 52 45 69 72
DEWPT 28 26 31 31 39 39 36 34 38 39 38 37 42 41 39 36
PWIND DIR SE S S NW SE S S W
WIND CHAR LT GN LT LT LT GN GN GN
AVG CLOUDS SC SC SC SC B1 B1 B1 SC SC SC SC SC B1 B1 SC SC
POP 12HR 0 5 20 20 10 20 30 20
RAIN SHWRS S S S S S C S S S
TSTMS S S S
WYZ199-172200-
SHERIDAN-SHERIDAN WY
44.80N 106.96W ELEV. 4019 FT
1108 AM MDT SUN MAY 17 2026
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26
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 52 30 44 25 61
TEMP 47 51 49 43 39 34 31 34 38 42 43 38 33 28 26 40 53 58 58
DEWPT 29 28 26 29 30 28 29 30 30 30 28 29 27 24 22 24 26 25 28
RH 49 41 40 57 70 78 92 85 73 62 55 70 78 85 85 52 35 28 32
WIND DIR NW NW NW NW NW NW NW NW NW NW NW W W SW SW E N N S
WIND SPD 18 16 16 12 12 16 13 16 18 18 12 3 2 2 2 1 3 3 4
WIND GUST 23
CLOUDS B2 OV OV OV OV OV OV OV OV OV B2 B1 SC FW FW FW FW FW SC
POP 12HR 50 70 80 20 0
QPF 12HR 0.01 0.03 0.08 0.01 0
SNOW 12HR 00-00 00-00 T
RAIN SHWRS S S C C C L C C S
SNOWSHWRS L D L C
DATE WED 05/20/26 THU 05/21/26 FRI 05/22/26 SAT 05/23/26
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 31 65 34 66 37 71 39 74
TEMP 38 32 61 62 43 36 61 64 47 39 67 68 50 41 68 71
DEWPT 28 26 29 31 35 33 35 35 35 34 37 37 38 36 38 37
PWIND DIR S NW W NW SW NE W NW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC B1 B1 SC B1 B1 SC SC SC B1 SC SC SC B1
POP 12HR 0 30 30 40 20 30 30 30
RAIN SHWRS C C S C C S C C S S C
TSTMS S S S S S S
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