278
FOUS55 KTFX 182046
PFMTFX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE GREAT FALLS MT
146 PM MST THU DEC 18 2025
MTZ312-191100-
GREAT FALLS-CASCADE MT
47.47N 111.38W ELEV. 3663 FT
146 PM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN
MST 3HRLY 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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 37 49 28 40 27
TEMP 36 37 40 44 49 49 45 47 42 36 32 31 31 29 32 37 40 36 34 33 32 33
DEWPT 14 20 24 30 33 33 29 23 13 11 11 12 14 13 14 14 13 16 14 13 12 14
RH 40 50 52 57 54 54 53 38 30 35 41 45 49 51 47 38 33 43 43 43 43 45
WIND DIR SW S SW SW SW SW W W W W W SW SW SW SW SW SW SW SW SW SW S
WIND SPD 19 17 28 39 41 41 40 37 33 23 23 21 21 20 21 25 26 18 20 19 18 14
WIND GUST 31 28 43 56 57 57 57 55 48 35 35 32 35 36 29 31
CLOUDS B2 OV B2 B1 B1 FW SC FW FW FW FW FW FW FW SC FW FW FW FW FW SC SC
POP 12HR 30 30 0 0 0
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN S C S
SNOW S S
HIGH WIND W W W W W W
DATE 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25 THU 12/25/25
MST 6HRLY 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 44 34 47 27 46 28 39 19 39
TEMP 38 40 40 40 43 39 35 30 41 41 36 31 34 31 26 24 33 34
DEWPT 16 21 26 31 30 24 24 20 29 30 27 23 25 22 16 14 20 20
PWIND DIR S S SW S SW S NW SW SW
WIND CHAR GN GN GN GN LT LT LT GN GN
AVG CLOUDS SC B1 B1 B1 B1 SC SC B1 B1 B1 B1 B2 B2 B1 B1 SC B1 SC
POP 12HR 5 20 30 20 10 10 20 20 10
RAIN S C S S
SNOW S C S S S S S
MTZ303-191100-
CUT BANK-GLACIER MT
48.60N 112.39W ELEV. 3838 FT
146 PM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN
MST 3HRLY 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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 29 40 17 36 24
TEMP 33 33 32 37 41 39 35 37 33 27 25 24 22 20 23 30 35 32 30 29 28 28
DEWPT 16 20 22 28 32 29 18 15 10 10 11 11 10 8 11 12 15 18 17 16 15 16
RH 49 58 66 70 70 67 49 40 38 48 55 57 59 59 59 46 43 56 58 58 58 60
WIND DIR S S S SW SW W W W W W W W W W W W W SW SW SW SW SW
WIND SPD 19 16 21 31 33 36 37 35 31 20 23 17 13 12 14 21 26 18 21 20 18 16
WIND GUST 33 28 37 49 52 56 58 52 48 35 34 25 33 39 31 34 34 31 26
CLOUDS B2 OV B2 SC SC SC FW FW FW FW FW SC SC SC SC SC SC FW FW FW FW SC
POP 12HR 30 5 5 5 5
QPF 12HR 0.02 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN S
SNOW S
HIGH WIND W W W W W W W W
DATE 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25 THU 12/25/25
MST 6HRLY 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 38 23 37 20 41 15 30 12 32
TEMP 33 33 29 33 34 30 28 23 37 36 28 18 24 25 21 20 29 29
DEWPT 15 18 21 25 21 18 16 13 23 25 21 13 17 17 13 12 18 20
PWIND DIR SW S W SW SW SW N W W
WIND CHAR GN GN BZ GN GN LT GN GN GN
AVG CLOUDS SC SC B1 B1 SC SC SC SC SC SC B1 B1 B2 B1 B1 SC B1 SC
POP 12HR 5 20 10 10 5 10 20 10 10
SNOW S S S
MTZ319-191100-
HELENA-LEWIS & CLARK MT
46.61N 111.96W ELEV. 3893 FT
146 PM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN
MST 3HRLY 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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 33 47 24 38 21
TEMP 35 36 37 39 43 44 42 44 40 33 32 30 28 26 28 33 37 34 30 26 25 24
DEWPT 20 22 26 30 30 32 33 34 25 16 15 14 12 13 14 15 15 14 13 11 10 12
RH 54 56 64 70 60 62 70 68 55 49 49 51 50 57 55 47 40 43 49 52 52 60
WIND DIR S SE S S S SW W W W W W W W SW SW SW W SW SW S S S
WIND SPD 14 17 19 19 20 21 19 21 23 17 17 13 12 12 12 16 18 12 12 10 9 6
WIND GUST 28 31 35 37 39 42 40 40 41 35 33 25 24 25 25 28 31 23 23
CLOUDS OV B2 OV OV B2 B1 B2 B2 SC FW FW FW SC FW SC FW FW FW FW FW SC B1
POP 12HR 70 80 10 10 0
QPF 12HR 0.04 0.09 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN L C D
SNOW C S
DATE 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25 THU 12/25/25
MST 6HRLY 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 40 32 45 27 44 28 44 25 42
TEMP 30 38 36 39 40 38 35 28 37 41 34 30 38 39 33 29 33 37
DEWPT 17 25 29 32 32 28 26 21 30 29 27 23 30 28 24 21 24 24
PWIND DIR S S SW SW S S S SW SW
WIND CHAR LT GN LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B2 B2 B2 B1 B1 B1 B2 B1 B2 B2 B2 B1 B1 B1 B1 SC
POP 12HR 10 50 50 30 10 20 30 30 10
RAIN C C C S S C C C S
SNOW C S C S S C C C S
MTZ326-191100-
BOZEMAN-GALLATIN MT
45.78N 111.16W ELEV. 4475 FT
146 PM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN
MST 3HRLY 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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 32 49 18 37 18
TEMP 36 36 36 37 42 43 44 48 43 35 31 26 23 20 23 32 37 33 27 22 22 23
DEWPT 17 20 23 26 28 29 30 32 31 23 17 13 12 9 13 16 13 13 13 11 12 14
RH 45 52 59 64 57 57 57 54 62 61 56 57 62 62 65 51 37 43 55 62 65 68
WIND DIR SW SE E SE SW SW SW W W NW W W SW SW SW SW W SW S S S SE
WIND SPD 12 14 17 16 18 20 19 21 19 14 13 9 9 9 8 11 13 10 9 8 5 5
WIND GUST 25 27 31 31 36 41 41 43 37 31 26 21 28
CLOUDS OV B2 OV OV B2 B2 B1 B1 OV B2 B1 FW FW FW FW FW FW FW FW SC SC B1
POP 12HR 50 40 10 0 0
QPF 12HR 0.01 0.08 0.01 0 0
SNOW 12HR 00-00 00-00 T
RAIN C C C
SNOW C C
DATE 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25 THU 12/25/25
MST 6HRLY 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 42 32 49 30 48 32 50 27 45
TEMP 34 40 36 39 44 41 37 31 42 45 37 34 44 45 36 32 37 38
DEWPT 22 28 30 33 35 29 30 27 34 32 29 27 33 30 29 26 28 25
PWIND DIR S S SW S S SE S S SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC
POP 12HR 10 40 60 30 10 10 30 30 10
RAIN C L C S C C C S
SNOW C L C S C S
MTZ330-191100-
WEST YELLOWSTONE-GALLATIN MT
44.69N 111.11W ELEV. 6644 FT
146 PM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN
MST 3HRLY 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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 21 37 7 25 14
TEMP 23 23 24 26 30 31 33 36 36 34 28 20 13 8 9 20 24 21 17 16 16 19
DEWPT 18 19 20 23 27 27 29 32 32 29 22 13 7 3 4 13 13 12 12 13 13 17
RH 81 84 84 88 88 85 85 85 85 82 78 74 76 79 80 74 62 68 80 88 88 92
WIND DIR SW SW SW SW SW SW SW SW SW SW W W SW SW SW SW SW SW SW SW SW SW
WIND SPD 18 20 19 19 20 20 24 26 27 26 20 8 4 3 4 8 12 10 10 6 5 4
WIND GUST 33 35 39 40 40 40 46 47 46 44 40 24 21 20 17
CLOUDS OV B2 OV OV B2 OV OV B2 OV B2 B2 SC SC SC SC SC SC SC SC B1 B1 OV
POP 12HR 90 60 10 10 10
QPF 12HR 0.17 0.10 0.06 0 0.01
SNOW 12HR 2 T 1
SNOW D D D C
OBVIS BS BS BS BS BS BS BS BS
WINTER WEATH Y Y Y Y Y Y Y Y Y Y
DATE 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25 THU 12/25/25
MST 6HRLY 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 36 30 40 27 40 26 41 23 37
TEMP 28 35 34 35 38 37 33 28 36 38 31 27 36 37 31 27 32 33
DEWPT 26 31 31 32 34 30 29 26 31 28 26 22 28 29 27 24 27 25
PWIND DIR SW SW SW SW S S S S SW
WIND CHAR LT GN BZ GN GN LT GN GN GN
AVG CLOUDS OV B2 B2 OV OV B2 B2 B2 OV B2 B2 B1 B2 B2 B2 B2 OV B1
POP 12HR 10 90 80 50 10 30 60 60 10
RAIN D D C C C C L
SNOW S D C C C C L L C
MTZ328-191100-
DILLON-BEAVERHEAD MT
45.26N 112.55W ELEV. 5357 FT
146 PM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN
MST 3HRLY 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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 33 49 18 34 17
TEMP 33 34 34 37 41 43 43 48 45 36 30 25 22 19 20 29 34 27 21 20 19 22
DEWPT 18 21 25 27 30 30 31 34 31 27 18 11 10 9 9 12 12 11 9 9 9 12
RH 53 58 69 67 65 60 62 58 58 69 60 55 59 64 62 48 39 50 59 62 64 65
WIND DIR S S S S SW SW SW SW W W W SW SW SW SW SW SW S S S S S
WIND SPD 20 19 23 23 26 27 27 32 31 19 17 10 10 10 11 12 13 10 10 10 10 10
WIND GUST 32 32 35 37 42 42 43 48 46 32 28
CLOUDS B2 B2 B2 B2 B2 B1 B1 SC OV B2 B1 FW FW FW FW FW FW FW SC SC B1 B1
POP 12HR 80 40 10 0 0
QPF 12HR 0.01 0.03 0.01 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN C C C
SNOW L C S
DATE 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25 THU 12/25/25
MST 6HRLY 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 40 31 46 30 46 32 48 27 45
TEMP 34 38 34 37 42 39 36 32 43 43 36 33 44 45 36 33 40 40
DEWPT 23 28 29 30 32 30 30 26 34 32 29 25 32 31 28 26 30 27
PWIND DIR S S S S S S S S S
WIND CHAR GN GN GN GN GN GN GN GN GN
AVG CLOUDS B1 B2 B2 B2 B2 B1 B2 B2 B2 B2 B1 B1 B2 B1 B2 B1 B1 SC
POP 12HR 10 40 40 20 10 10 20 20 10
RAIN C C S S S S S
SNOW C C S S S S S
MTZ305-191100-
HAVRE-HILL MT
48.54N 109.76W ELEV. 2585 FT
146 PM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN
MST 3HRLY 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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 25 42 5 23 15
TEMP 29 27 28 31 38 40 36 39 30 19 14 11 9 7 8 16 22 22 21 21 20 21
DEWPT 17 17 21 24 30 33 27 27 17 9 6 3 0 -1 0 5 9 12 12 11 11 12
RH 60 65 75 75 73 76 69 62 58 64 70 69 66 69 69 61 57 65 68 65 67 68
WIND DIR S SE SE S SW SW W W NW W W W NW NW NW W W SW SW SW SW SW
WIND SPD 12 13 16 20 26 29 28 26 20 13 11 8 5 5 4 5 8 9 12 14 13 12
WIND GUST 23 31 40 46 44 42 33
CLOUDS B1 B2 OV OV OV SC SC FW SC FW SC SC SC B1 SC SC SC SC SC SC FW SC
POP 12HR 30 10 5 5 0
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN S
SNOW S
WIND CHILL -1 -3 -1
MIN CHILL -3 -3 -4
DATE 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25 THU 12/25/25
MST 6HRLY 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 37 21 37 15 36 19 32 11 31
TEMP 31 32 29 31 33 29 23 19 33 34 27 22 28 28 22 18 28 29
DEWPT 17 21 20 26 25 20 17 14 25 27 22 18 23 22 19 14 21 21
PWIND DIR SW S W NE SW E NE W SW
WIND CHAR GN LT GN GN LT LT LT GN GN
AVG CLOUDS SC B1 B2 B2 B2 SC SC B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 SC
POP 12HR 0 10 10 10 10 10 30 30 10
SNOW C C C S
MTZ314-191100-
LEWISTOWN-FERGUS MT
47.05N 109.46W ELEV. 4144 FT
146 PM MST THU DEC 18 2025
DATE THU 12/18/25 FRI 12/19/25 SAT 12/20/25 SUN
MST 3HRLY 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
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 31 47 20 36 23
TEMP 36 35 35 39 46 45 44 45 40 31 26 25 24 22 26 33 36 32 29 28 28 28
DEWPT 15 20 22 26 31 31 30 32 21 11 10 10 8 7 10 12 12 13 11 9 9 11
RH 42 54 59 59 55 58 57 60 46 43 50 52 50 52 50 41 36 45 46 44 44 48
WIND DIR SW SW SW SW SW SW W W W W W W W W W W W SW SW SW SW SW
WIND SPD 14 17 21 24 27 27 26 28 28 23 18 13 13 12 13 18 18 13 13 12 11 10
WIND GUST 26 27 35 39 47 48 43 44 46 37 31 23 25 28 28
CLOUDS B1 OV OV OV B2 B2 SC OV B1 SC FW FW SC SC SC FW SC SC FW SC SC SC
POP 12HR 20 20 5 5 0
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
SNOW S
DATE 12/21/25 MON 12/22/25 TUE 12/23/25 WED 12/24/25 THU 12/25/25
MST 6HRLY 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 42 32 46 26 46 29 46 20 39
TEMP 38 39 39 42 44 38 34 29 41 40 34 30 41 36 29 25 33 32
DEWPT 16 23 29 32 33 28 27 22 31 31 28 24 29 28 21 17 21 20
PWIND DIR S S SW S S SE SW SW SW
WIND CHAR GN GN GN LT LT LT LT GN GN
AVG CLOUDS B1 B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 B1 B2 B1 B1 B1 B1 SC
POP 12HR 5 20 30 30 10 20 20 30 10
RAIN S C C C S S S C
SNOW S C C C S S S C S
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