218
FOUS55 KTFX 180947
PFMTFX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE GREAT FALLS MT
246 AM MST THU DEC 18 2025
MTZ312-182300-
GREAT FALLS-CASCADE MT
47.47N 111.38W ELEV. 3663 FT
246 AM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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 44 36 46 26 39
TEMP 20 23 31 36 41 39 43 46 46 42 41 37 32 30 30 29 28 30 36 39 35
DEWPT 6 8 12 14 23 23 29 32 31 27 18 10 8 8 10 10 10 13 14 13 14
RH 54 52 45 40 48 52 57 58 55 55 39 32 36 39 42 44 46 49 40 34 41
WIND DIR SW SW SW SW S SW SW SW SW W W W W W SW SW SW SW SW W SW
WIND SPD 14 18 18 18 14 25 35 37 37 34 29 26 17 17 18 19 20 21 23 24 18
WIND GUST 28 28 39 50 52 51 48 42 37 33 35
CLOUDS SC B1 B2 B2 OV B2 B1 B1 B1 B1 SC SC FW FW FW FW FW FW FW FW FW
POP 12HR 10 30 30 5 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN S C S C
SNOW S C S S
HIGH WIND A A A A A A
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 26 43 31 46 28 44 27 42
TEMP 32 31 36 37 35 36 42 39 34 30 39 38 34 30 36 35
DEWPT 13 12 17 20 24 26 28 24 22 18 23 24 23 21 25 24
PWIND DIR SW S SW SW SW SW SW W
WIND CHAR BZ GN GN GN GN GN LT LT
AVG CLOUDS FW FW SC B1 B1 B1 B1 SC SC SC SC SC B1 B1 B2 B1
POP 12HR 5 5 20 20 20 5 10 20
RAIN S S S
SNOW S S S S S
MTZ303-182300-
CUT BANK-GLACIER MT
48.60N 112.39W ELEV. 3838 FT
246 AM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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 39 28 38 15 33
TEMP 14 16 25 31 36 31 36 39 37 32 33 29 24 21 21 20 18 21 28 32 29
DEWPT 2 5 10 15 22 21 26 29 25 14 12 8 8 7 8 7 5 8 12 13 15
RH 58 61 52 51 56 66 67 67 61 47 41 40 50 54 56 56 56 56 50 45 55
WIND DIR W SW SW SW S S SW SW W W W W W W W W W W W W SW
WIND SPD 19 19 19 18 14 19 26 29 31 31 26 24 14 16 14 13 13 16 20 24 18
WIND GUST 32 32 32 29 25 31 43 47 49 48 40 36 25 26 32 36 29
CLOUDS SC SC B2 B2 OV B2 SC SC FW FW FW FW FW FW FW SC SC SC SC SC SC
POP 12HR 5 30 10 0 5
QPF 12HR 0 0.01 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN S
SNOW S
WIND CHILL -4 -1
MIN CHILL -5 -8
HIGH WIND A A A A A A A A
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 23 38 21 37 21 39 18 35
TEMP 27 26 32 33 27 30 32 29 25 22 33 33 27 22 27 29
DEWPT 15 15 16 19 18 20 20 18 15 13 18 19 17 14 17 19
PWIND DIR SW SW SW W SW SW W NW
WIND CHAR BZ GN GN GN GN GN GN GN
AVG CLOUDS SC FW SC B1 B1 SC SC SC SC SC SC SC SC B1 B1 B1
POP 12HR 5 5 20 10 10 5 5 10
SNOW S S
MTZ319-182300-
HELENA-LEWIS & CLARK MT
46.61N 111.96W ELEV. 3893 FT
246 AM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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 39 33 43 22 34
TEMP 30 29 31 35 37 36 38 42 41 39 38 34 31 29 27 26 23 26 31 33 31
DEWPT 17 17 16 20 23 26 29 31 30 30 28 21 15 14 12 11 10 12 14 13 12
RH 58 60 53 54 56 67 70 65 65 70 67 58 51 53 53 52 57 55 49 43 45
WIND DIR SW S S S SE S S SW SW W W W W W W SW SW SW SW W SW
WIND SPD 8 5 8 12 13 16 17 18 18 16 14 17 13 12 10 10 10 11 13 16 12
WIND GUST 24 26 31 32 34 35 32 29 31 26 25 21 20 23 25 28
CLOUDS B2 B2 B2 OV B2 B2 OV B2 OV OV B2 B2 SC SC FW SC SC SC SC FW FW
POP 12HR 30 60 80 20 10
QPF 12HR 0 0.06 0.10 0.01 0
SNOW 12HR 00-00 00-00 00-00
RAIN L C L D D
SNOW C C S S S L L S S
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 21 40 30 43 27 41 27 43
TEMP 26 24 32 38 35 33 38 38 33 28 35 37 33 30 36 39
DEWPT 12 13 20 23 27 28 29 26 24 21 26 26 25 25 29 28
PWIND DIR SW S S SW SW S SW SW
WIND CHAR GN LT GN LT LT LT LT LT
AVG CLOUDS SC SC B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 B2 B2 B1
POP 12HR 5 10 40 50 30 10 10 20
RAIN C C C C C S S S
SNOW C C S C C S S S
MTZ326-182300-
BOZEMAN-GALLATIN MT
45.78N 111.16W ELEV. 4475 FT
246 AM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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 39 31 48 17 33
TEMP 26 25 31 36 38 36 37 41 42 43 45 39 35 30 26 22 19 21 29 32 29
DEWPT 13 14 14 18 21 24 26 30 29 29 29 27 22 18 14 11 8 11 13 11 11
RH 57 62 49 47 50 61 64 65 60 57 53 62 59 60 60 62 61 65 51 41 46
WIND DIR SW SE S SW SE E SE SW SW SW W NW NW NW W SW SW SW SW W SW
WIND SPD 8 5 5 11 12 14 13 14 17 16 16 14 11 10 8 8 8 9 11 13 10
WIND GUST 21 24 26 26 29 33 33 32 31 21 27
CLOUDS B1 B1 OV OV B2 OV OV B2 B2 B2 OV OV B2 B1 SC FW SC FW FW FW FW
POP 12HR 30 50 90 40 5
QPF 12HR 0 0.01 0.10 0.03 0
SNOW 12HR 00-00 00-00 00-00
RAIN C C C L L D
SNOW C C C D D C C
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 16 41 30 47 28 46 29 48
TEMP 21 22 34 38 34 36 41 42 35 30 39 42 35 33 42 44
DEWPT 10 12 23 25 26 30 33 28 28 24 30 29 29 27 31 30
PWIND DIR S SE S SW S S S S
WIND CHAR GN LT LT LT LT LT LT LT
AVG CLOUDS FW SC B2 B2 B2 B2 B2 B2 B1 B1 B2 B1 B2 B2 B2 B2
POP 12HR 0 20 30 50 30 20 10 20
RAIN S S C C C C S S S S
SNOW S S S C S S S S
MTZ330-182300-
WEST YELLOWSTONE-GALLATIN MT
44.69N 111.11W ELEV. 6644 FT
246 AM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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 29 22 36 9 26
TEMP 13 13 21 24 27 24 27 30 31 30 33 34 34 30 23 16 10 10 22 25 21
DEWPT 7 9 15 19 22 21 24 27 27 28 30 29 28 25 16 9 4 6 14 14 12
RH 76 84 77 81 81 88 88 88 85 92 89 82 78 81 74 73 76 83 71 62 68
WIND DIR SW SW SW SW SW SW SW SW SW SW SW SW SW W W W SW SW SW SW SW
WIND SPD 3 4 10 16 18 17 17 18 18 20 23 24 23 17 10 5 4 4 9 13 10
WIND GUST 23 29 32 35 36 36 36 41 41 40 39 34 21 19 24 21
CLOUDS B2 B2 OV B2 OV OV OV B2 OV OV OV OV OV OV B1 B1 SC B1 SC SC SC
POP 12HR 90 90 100 90 20
QPF 12HR 0.03 0.17 0.15 0.14 0
SNOW 12HR T 2 1
SNOW C D L D D C D D D D D D C C S S
OBVIS BS BS BS BS BS BS
WINTER WEATH Y Y Y Y Y Y Y Y Y Y
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 11 38 28 39 26 39 25 41
TEMP 14 16 29 37 32 33 35 36 32 27 35 37 32 27 37 37
DEWPT 10 14 25 31 29 31 32 29 28 26 30 30 28 24 30 30
PWIND DIR SW SW SW SW SW S S S
WIND CHAR GN LT GN GN GN GN LT GN
AVG CLOUDS SC B1 OV B2 B2 B2 OV B2 B2 B1 OV B2 B2 B2 B2 B1
POP 12HR 20 70 80 80 50 50 30 50
RAIN L D D D
SNOW S C L L S S D C C C C C C C C
MTZ328-182300-
DILLON-BEAVERHEAD MT
45.26N 112.55W ELEV. 5357 FT
246 AM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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 37 33 47 17 33
TEMP 27 26 31 34 35 34 38 42 42 41 44 42 34 30 26 21 18 19 28 32 27
DEWPT 13 12 14 19 23 24 28 30 30 30 32 29 25 19 12 9 8 10 14 14 12
RH 55 55 49 54 61 66 67 62 62 65 62 60 69 63 55 59 64 67 55 47 53
WIND DIR S S S S S S SW SW SW SW SW SW W W W SW SW SW SW SW S
WIND SPD 9 10 14 18 16 19 19 23 23 24 25 24 16 12 10 10 10 11 12 13 10
WIND GUST 28 31 33 37 36 37 37 35 26
CLOUDS B2 B2 OV OV B2 B2 B2 B1 B1 B1 B2 B2 B2 B1 SC FW FW FW FW FW FW
POP 12HR 40 70 80 40 0
QPF 12HR 0 0.02 0.07 0.01 0
SNOW 12HR 00-00 00-00 00-00
RAIN C C C C C D
SNOW S C L C S D C C
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 14 39 30 44 27 43 29 47
TEMP 17 18 31 36 32 33 40 40 33 29 38 39 35 33 41 42
DEWPT 6 9 23 27 27 28 32 28 26 22 30 29 29 26 31 31
PWIND DIR S S S S S S S S
WIND CHAR GN GN GN GN GN GN GN GN
AVG CLOUDS SC B1 B2 B1 B2 B2 B2 B1 B1 B1 B1 B1 B2 B2 B2 B1
POP 12HR 0 10 30 30 20 10 10 20
RAIN C C C C S S
SNOW C C C C S S
MTZ305-182300-
HAVRE-HILL MT
48.54N 109.76W ELEV. 2585 FT
246 AM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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 36 25 43 2 28
TEMP 12 13 24 34 34 30 32 39 40 38 36 27 18 13 11 7 4 8 18 26 25
DEWPT 5 6 14 22 24 23 24 31 33 30 24 16 10 5 3 -1 -4 0 5 12 13
RH 73 73 65 61 66 75 72 73 76 73 61 63 70 70 69 69 68 69 56 55 60
WIND DIR SW SE S S SE SE S SW SW W W NW W W W W NW W SW W SW
WIND SPD 6 8 10 11 11 13 16 23 26 24 21 16 10 9 8 5 5 5 6 10 10
WIND GUST 36 40 39 32
CLOUDS SC SC SC B1 B2 OV OV B2 B1 SC SC SC SC SC FW SC B1 SC SC SC SC
POP 12HR 0 30 10 5 10
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN S
SNOW S
WIND CHILL -1 -3 -7 -2
MIN CHILL -2 -1 -1 -7 -6
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 18 37 19 36 15 37 18 34
TEMP 23 23 32 32 27 27 30 27 22 18 31 31 25 23 27 29
DEWPT 14 14 20 22 20 21 22 19 15 11 20 20 18 16 19 23
PWIND DIR SW S S W SW SW S E
WIND CHAR GN GN GN GN LT GN LT LT
AVG CLOUDS SC SC SC B1 B1 B1 B1 B1 SC SC B1 B1 B1 B1 B2 B2
POP 12HR 5 0 20 10 10 5 5 20
SNOW S S S
MTZ314-182300-
LEWISTOWN-FERGUS MT
47.05N 109.46W ELEV. 4144 FT
246 AM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25
MST 3HRLY 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
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 40 30 45 19 35
TEMP 22 22 33 36 37 35 38 44 43 41 42 36 30 26 25 24 21 25 33 35 31
DEWPT 11 12 15 15 23 21 25 30 30 28 28 20 14 12 10 8 7 10 12 12 12
RH 62 65 47 42 56 56 59 57 60 59 57 52 51 55 52 50 54 52 41 38 45
WIND DIR W SW SW SW S SW SW SW SW W W W NW W W W W W W W W
WIND SPD 10 9 10 12 13 19 21 24 23 23 21 19 14 12 10 10 11 12 16 16 11
WIND GUST 20 24 25 31 35 42 40 37 33 32 26 23 26 26
CLOUDS FW B1 B1 B1 OV OV OV OV B1 B1 B1 B1 B1 SC FW SC SC SC SC FW FW
POP 12HR 10 20 50 20 5
QPF 12HR 0 0 0.02 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN C C
SNOW S S C C C S S
DATE SUN 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25
MST 6HRLY 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MIN/MAX 22 42 29 45 26 43 26 44
TEMP 27 25 36 36 34 37 43 35 32 28 40 37 33 31 39 38
DEWPT 10 9 16 21 23 28 33 24 24 20 26 26 25 23 29 28
PWIND DIR SW S SW SW SW SW S S
WIND CHAR GN GN GN GN LT LT LT LT
AVG CLOUDS FW SC B1 B1 B2 B2 B2 B1 B1 B1 B1 B1 B2 B2 B2 B1
POP 12HR 0 5 20 30 30 10 10 20
RAIN S S C C C S S
SNOW S S C C C S S S
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