756  
FOUS55 KTFX 160201  
PFMTFX  
 
POINT FORECAST MATRICES  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
801 PM MDT FRI MAY 15 2026  
 
MTZ312-161000-  
GREAT FALLS-CASCADE MT  
47.47N 111.38W ELEV. 3663 FT  
801 PM MDT FRI MAY 15 2026  
 
DATE 05/15/26 SAT 05/16/26 SUN 05/17/26 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 41 57 34 44 29  
TEMP 53 47 45 42 48 52 56 53 48 43 40 37 38 39 42 41 38 36 33 30  
DEWPT 24 26 26 26 29 29 29 25 27 28 30 30 31 31 32 31 29 30 29 27  
RH 32 43 47 53 47 41 35 33 44 55 67 75 76 73 67 67 70 79 85 88  
WIND DIR W SW SW SW SW SW W W W W W NW NW N N N N NW W W  
WIND SPD 11 10 11 10 14 12 11 11 12 12 12 14 20 21 20 17 12 6 5 5  
WIND GUST 32 31  
CLOUDS B1 B2 OV OV OV OV B2 OV OV B2 OV OV OV B2 B2 B2 OV B2 B2 B2  
POP 12HR 10 40 40 80 50  
QPF 12HR 0 0.01 0.05 0.18 0.03  
SNOW 12HR 00-00 00-00 00-00  
RAIN C S C C D D D C C C C  
RAIN SHWRS C C S  
SNOW C D D D C C C C C  
 
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU 05/21/26 FRI 05/22/26  
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 50 29 61 37 65 42 70 44 69  
TEMP 43 47 36 32 54 59 45 39 60 63 50 44 64 67 53 46 65 66  
DEWPT 27 27 29 26 29 30 34 32 33 33 36 35 34 33 38 37 35 35  
PWIND DIR N SE SW S SW SW SW SW W  
WIND CHAR LT LT LT GN GN GN GN GN GN  
AVG CLOUDS B1 SC SC SC SC SC B1 SC SC SC SC SC B1 SC B1 B1 B1 SC  
POP 12HR 30 10 10 10 10 5 10 20 20  
RAIN C S S S  
RAIN SHWRS S  
SNOW C  
TSTMS S  
 

 
MTZ303-161000-  
CUT BANK-GLACIER MT  
48.60N 112.39W ELEV. 3838 FT  
801 PM MDT FRI MAY 15 2026  
 
DATE 05/15/26 SAT 05/16/26 SUN 05/17/26 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 34 55 29 43 26  
TEMP 49 42 37 35 44 52 54 52 43 37 34 32 33 38 42 41 38 34 29 27  
DEWPT 27 27 26 24 24 23 22 23 26 30 31 28 28 28 28 26 27 28 25 23  
RH 42 55 64 64 45 32 28 32 51 75 89 85 82 67 57 55 64 78 85 85  
WIND DIR W W SW SW SW W W W W NW NW N N N N N N NW NW NW  
WIND SPD 16 10 12 12 23 21 23 21 17 14 18 21 26 27 27 20 11 5 5 5  
WIND GUST 20 24 23 32 28 41 40 32  
CLOUDS B2 B2 SC SC B2 B2 B1 B1 B1 B2 OV OV B2 B2 B2 B2 B2 B1 SC B1  
POP 12HR 5 5 70 70 10  
QPF 12HR 0 0 0.01 0.04 0  
SNOW 12HR 00-00 00-00 00-00  
RAIN L L C  
SNOW L L L L C C  
 
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU 05/21/26 FRI 05/22/26  
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 54 29 61 36 63 38 67 40 65  
TEMP 46 51 38 31 55 58 44 38 57 61 46 40 62 65 48 41 60 63  
DEWPT 25 25 28 27 28 30 33 31 32 32 34 33 32 33 36 34 33 32  
PWIND DIR N SE SW SW W W W W NW  
WIND CHAR LT LT LT GN GN GN GN GN GN  
AVG CLOUDS SC SC B1 SC SC SC B1 SC SC B1 B1 SC SC SC B1 B1 B1 SC  
POP 12HR 5 0 20 10 20 5 10 20 20  
RAIN S S S S S  
RAIN SHWRS S  
TSTMS S  
 

 
MTZ319-161000-  
HELENA-LEWIS & CLARK MT  
46.61N 111.96W ELEV. 3893 FT  
801 PM MDT FRI MAY 15 2026  
 
DATE 05/15/26 SAT 05/16/26 SUN 05/17/26 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 39 54 34 46 31  
TEMP 54 46 44 40 42 48 53 51 47 42 38 35 37 43 45 44 40 38 34 32  
DEWPT 20 24 27 30 32 33 32 24 23 24 26 27 27 29 30 27 26 28 27 27  
RH 26 42 51 67 67 56 44 34 38 48 62 72 67 57 55 51 57 67 75 81  
WIND DIR W S SW SW NW NW NW W W W W W NW N N N N NW NW NW  
WIND SPD 10 2 3 3 2 5 8 16 12 9 8 9 12 16 20 19 16 9 6 3  
WIND GUST 20 27 24 29 33 33 26  
CLOUDS B1 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B2 B2 OV OV B2 OV B2 B2 B2  
POP 12HR 10 60 30 80 40  
QPF 12HR 0 0.08 0.05 0.08 0.01  
SNOW 12HR 00-00 00-00 00-00  
RAIN C S C L C C S  
RAIN SHWRS C L L C D D  
SNOW C C L L S S S  
SNOWSHWRS D D  
TSTMS S S  
 
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU 05/21/26 FRI 05/22/26  
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 52 30 62 35 66 38 71 41 71  
TEMP 45 48 38 31 54 60 46 37 59 64 49 41 63 69 53 43 65 70  
DEWPT 26 24 27 26 27 25 31 31 31 29 33 34 33 30 34 35 33 31  
PWIND DIR N W W SW W W W W W  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS B1 SC B1 SC B1 B1 B1 SC SC SC B1 SC B1 SC B1 SC SC SC  
POP 12HR 20 10 10 10 10 5 10 10 20  
RAIN S  
RAIN SHWRS S S  
SNOW S  
TSTMS S S  
 

 
MTZ326-161000-  
BOZEMAN-GALLATIN MT  
45.78N 111.16W ELEV. 4475 FT  
801 PM MDT FRI MAY 15 2026  
 
DATE 05/15/26 SAT 05/16/26 SUN 05/17/26 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 36 59 29 45 26  
TEMP 56 47 42 37 46 56 57 49 39 34 33 31 35 40 44 43 38 34 31 27  
DEWPT 22 23 24 23 26 30 36 38 34 30 31 30 30 29 31 28 28 28 27 25  
RH 26 38 48 56 45 37 45 66 82 85 92 96 82 64 60 55 67 78 85 92  
WIND DIR N W SW SW W W W NW NW W SW W W NW NW N N N N NW  
WIND SPD 9 4 3 5 5 8 11 12 9 6 4 4 8 9 13 14 13 8 5 5  
WIND GUST 23 19 26 28  
CLOUDS B1 B2 B2 B2 OV B2 B2 OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2  
POP 12HR 5 70 90 70 30  
QPF 12HR 0 0.06 0.17 0.07 0.01  
SNOW 12HR 00-00 00-00 T  
RAIN D D L L C C  
RAIN SHWRS L L  
SNOW D L L L L L C C C C  
SNOWSHWRS L  
TSTMS S S  
 
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU 05/21/26 FRI 05/22/26  
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 48 27 58 32 64 36 69 39 70  
TEMP 40 43 34 29 50 56 41 34 57 62 46 37 63 67 50 40 65 68  
DEWPT 27 26 28 26 27 25 30 28 30 30 33 31 32 31 35 33 33 32  
PWIND DIR NW E SW SE SW SE SW S SW  
WIND CHAR LT LT LT LT LT LT LT LT LT  
AVG CLOUDS B2 B1 SC SC SC SC SC B1 SC SC B1 B1 SC SC SC B1 SC SC  
POP 12HR 40 20 10 10 10 10 10 20 20  
RAIN S S  
RAIN SHWRS C S S  
SNOW C  
SNOWSHWRS C  
TSTMS S S S  
 

 
MTZ330-161000-  
WEST YELLOWSTONE-GALLATIN MT  
44.69N 111.11W ELEV. 6644 FT  
801 PM MDT FRI MAY 15 2026  
 
DATE 05/15/26 SAT 05/16/26 SUN 05/17/26 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 30 55 25 42 21  
TEMP 47 37 33 31 40 52 54 53 43 34 30 26 31 39 42 39 33 29 25 22  
DEWPT 16 17 18 19 19 21 23 22 26 26 25 24 22 19 19 19 22 24 23 21  
RH 28 44 53 61 42 29 30 29 51 72 81 92 69 44 39 44 63 81 92 96  
WIND DIR SW SW SE S SW SW SW SW W NW NW N NW NW N N N N N N  
WIND SPD 13 8 4 3 4 17 18 16 9 4 2 2 3 4 8 12 14 12 11 11  
WIND GUST 24 16 35 36 36 27 17 18 28 34 31 28 29  
CLOUDS B1 B1 B1 B1 OV B2 B2 B1 B2 OV OV OV B2 B2 B2 B2 B1 B2 B2 B1  
POP 12HR 0 20 70 60 30  
QPF 12HR 0 0.01 0.01 0.03 0  
SNOW 12HR 00-00 00-00 T  
RAIN C C  
RAIN SHWRS S  
SNOW C L L L L S S C C C  
SNOWSHWRS L L  
TSTMS S S S  
WINTER WEATH Y Y Y Y  
 
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU 05/21/26 FRI 05/22/26  
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 42 19 50 24 57 28 64 32 64  
TEMP 38 39 26 21 45 48 31 26 53 55 36 29 59 62 40 32 60 63  
DEWPT 19 16 23 21 18 19 26 24 24 26 29 27 26 27 31 28 27 27  
PWIND DIR N N SW W SW SW SW SW SW  
WIND CHAR GN LT LT LT LT LT LT LT LT  
AVG CLOUDS B1 B1 SC SC SC B1 B1 B1 SC SC B1 SC SC SC SC SC SC SC  
POP 12HR 30 10 10 10 10 5 10 10 20  
RAIN SHWRS S  
SNOW C  
SNOWSHWRS S  
TSTMS S S  
 

 
MTZ328-161000-  
DILLON-BEAVERHEAD MT  
45.26N 112.55W ELEV. 5357 FT  
801 PM MDT FRI MAY 15 2026  
 
DATE 05/15/26 SAT 05/16/26 SUN 05/17/26 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 37 58 27 46 25  
TEMP 53 47 41 41 48 56 57 51 40 35 31 28 33 42 45 43 37 33 29 26  
DEWPT 20 23 22 22 27 27 28 30 27 25 24 22 24 26 26 26 25 26 24 22  
RH 27 38 46 46 44 32 33 44 59 66 75 78 69 53 47 51 61 75 81 85  
WIND DIR W SW SE W SW SW W NW N N NW SW N N N N N N N N  
WIND SPD 9 6 6 4 6 19 19 16 13 9 6 8 9 12 18 20 21 18 14 11  
WIND GUST 31 27 24 23 28 33 33 28  
CLOUDS B2 B2 OV OV B2 B2 B2 B2 OV OV B2 B1 B1 B2 B2 B1 B2 B2 B1 B1  
POP 12HR 5 20 60 60 30  
QPF 12HR 0 0 0.06 0.04 0.01  
SNOW 12HR 00-00 00-00 T  
RAIN C L C C  
RAIN SHWRS S L  
SNOW L C C C C C C S  
SNOWSHWRS L L  
TSTMS S S S  
 
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU 05/21/26 FRI 05/22/26  
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 48 27 58 32 63 36 69 39 71  
TEMP 42 44 34 29 51 56 41 34 57 61 45 38 63 67 49 41 65 69  
DEWPT 25 24 25 23 25 24 27 26 28 28 29 28 31 29 30 29 30 27  
PWIND DIR N E SW SW SW W SW SW SW  
WIND CHAR GN LT LT LT LT LT GN GN GN  
AVG CLOUDS B1 SC SC B1 B1 SC B1 SC SC SC B1 SC SC FW SC SC SC FW  
POP 12HR 20 10 10 10 10 10 5 10 10  
RAIN SHWRS S  
SNOW S  
SNOWSHWRS S  
TSTMS S  
 

 
MTZ305-161000-  
HAVRE-HILL MT  
48.54N 109.76W ELEV. 2585 FT  
801 PM MDT FRI MAY 15 2026  
 
DATE 05/15/26 SAT 05/16/26 SUN 05/17/26 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 38 62 33 47 28  
TEMP 54 48 43 39 48 58 61 58 51 45 41 37 38 42 45 43 40 37 33 29  
DEWPT 28 28 27 26 28 28 29 28 32 35 36 34 35 35 34 33 33 34 31 28  
RH 36 46 53 59 46 32 29 32 48 68 82 89 89 76 65 67 76 89 92 96  
WIND DIR W SW SW SW SW SW SW SW S W W NW N N N N N N NW NW  
WIND SPD 5 9 8 11 13 13 11 10 9 9 10 12 13 17 18 16 11 8 6 4  
CLOUDS SC SC B1 SC B1 B2 OV OV OV OV OV OV OV OV OV B2 OV B2 B2 B2  
POP 12HR 5 30 40 80 70  
QPF 12HR 0 0.01 0.06 0.25 0.04  
SNOW 12HR 00-00 00-00 00-00  
RAIN S S C C L L D D L L C C S  
RAIN SHWRS S C  
SNOW S  
 
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU 05/21/26 FRI 05/22/26  
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 52 28 62 36 66 39 71 43 69  
TEMP 44 49 37 30 55 60 46 38 62 64 49 41 67 69 53 44 67 68  
DEWPT 30 28 30 28 32 31 34 33 36 34 38 36 37 34 39 38 38 36  
PWIND DIR N E S S W S SW SW W  
WIND CHAR LT LT LT LT GN LT LT GN GN  
AVG CLOUDS B2 B1 B1 FW SC FW SC B1 SC SC SC B1 SC SC B1 B1 B1 SC  
POP 12HR 20 5 5 5 20 10 5 20 20  
RAIN S S S S  
RAIN SHWRS S S  
TSTMS S S  
 

 
MTZ314-161000-  
LEWISTOWN-FERGUS MT  
47.05N 109.46W ELEV. 4144 FT  
801 PM MDT FRI MAY 15 2026  
 
DATE 05/15/26 SAT 05/16/26 SUN 05/17/26 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 38 56 30 41 27  
TEMP 50 45 43 39 47 53 54 47 41 38 37 34 35 38 39 38 35 33 31 28  
DEWPT 25 25 25 25 28 30 35 37 36 34 33 32 31 31 32 32 31 30 29 28  
RH 37 45 49 57 47 41 48 68 82 85 85 92 85 76 76 79 85 89 92100  
WIND DIR NW SW S SW NW E N NW W W W W NW NW NW NW NW NW NW NW  
WIND SPD 6 5 5 4 5 5 5 5 5 8 10 13 16 17 18 18 14 11 10 9  
WIND GUST 28 28  
CLOUDS B1 B2 B2 B2 B2 B2 OV OV OV OV OV OV B2 OV OV OV OV OV OV OV  
POP 12HR 10 70 90 90 80  
QPF 12HR 0 0.07 0.25 0.20 0.06  
SNOW 12HR 00-00 00-00 00-00  
RAIN D L L L D D D S  
RAIN SHWRS S C  
SNOW L L L L D D D D D D L  
TSTMS S  
 
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU 05/21/26 FRI 05/22/26  
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 43 26 55 32 60 36 65 40 65  
TEMP 37 39 31 30 49 53 39 36 56 58 43 40 61 62 48 43 61 63  
DEWPT 29 29 28 26 29 30 30 30 33 34 34 33 34 35 36 36 35 36  
PWIND DIR NW SE W S W SW W SW W  
WIND CHAR GN LT LT LT GN LT LT LT LT  
AVG CLOUDS OV B1 B1 SC SC SC SC B1 SC B1 SC B1 SC SC SC B1 SC B1  
POP 12HR 70 20 20 5 30 10 10 20 30  
RAIN C S S S  
RAIN SHWRS S C S C  
SNOW L C  
TSTMS S S S S  
 

 
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