Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
728 FOUS55 KTFX 120935 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 335 AM MDT Sat Sep 12 2026 MTZ312-122200- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 335 AM MDT Sat Sep 12 2026 Date Sat 09/12/26 Sun 09/13/26 Mon 09/14/26 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 58 41 64 45 62 Temp 45 46 51 56 56 49 46 44 42 46 57 64 61 52 48 47 47 51 59 62 60 Dewpt 42 42 43 42 44 42 41 42 41 42 44 43 46 45 42 41 39 41 41 40 40 RH 89 86 74 59 64 77 83 93 96 86 62 46 58 77 80 79 74 68 51 44 47 Wind dir NE NE NE NE NE NE NE NE NE NE N NW NW W SW SW SW SW W W NW Wind spd 6 6 6 6 11 12 12 8 3 3 5 9 11 10 12 21 25 26 27 20 10 Wind gust 33 35 37 31 Clouds B2 OV OV OV B2 SC B1 SC B2 B1 SC B1 B2 B2 B1 B1 B1 B1 B1 SC SC PoP 12hr 10 5 30 80 5 QPF 12hr 0 0 0 0.18 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D D S S Tstms S Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 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 62 41 63 43 72 45 72 Temp 47 43 58 60 47 43 56 61 48 44 65 69 50 46 65 69 Dewpt 40 40 43 41 42 42 43 42 41 39 42 41 40 39 42 43 PWind dir SW NE N W SE SW SE W Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC B1 B1 B1 B1 B1 SC FW FW FW CL FW FW FW FW PoP 12hr 5 5 20 5 0 0 5 5 Rain shwrs S S $$ MTZ303-122200- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 335 AM MDT Sat Sep 12 2026 Date Sat 09/12/26 Sun 09/13/26 Mon 09/14/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 52 37 54 39 56 Temp 41 43 47 50 50 46 43 40 38 41 48 52 52 46 44 41 42 47 53 56 54 Dewpt 40 41 41 40 40 41 40 38 38 38 41 43 44 42 40 37 38 41 42 42 42 RH 96 93 79 68 68 83 89 92100 89 77 71 74 86 86 85 86 79 66 59 64 Wind dir NE E E E E E SE E E E SE S W W SW SW W W W W W Wind spd 4 5 8 8 6 6 6 8 9 13 12 8 9 11 11 13 20 26 27 19 13 Wind gust 19 25 25 24 34 41 43 33 Clouds OV B2 OV OV OV B2 SC B1 B2 B2 OV B2 OV B2 B1 B2 B2 B1 B1 SC SC PoP 12hr 20 0 50 50 20 QPF 12hr 0 0 0.05 0.04 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C C C C C S Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 39 54 37 58 39 65 41 66 Temp 45 41 50 52 43 39 51 55 45 40 60 63 47 42 60 64 Dewpt 42 40 44 42 41 39 43 41 41 38 43 43 41 39 44 44 PWind dir W NE N SW SW W NW S Wind char GN LT LT LT LT LT LT LT Avg clouds B1 B1 B2 B2 B1 B1 SC FW FW FW FW FW CL FW FW FW PoP 12hr 20 30 30 5 0 0 5 0 Rain shwrs S S S C C $$ MTZ319-122200- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 335 AM MDT Sat Sep 12 2026 Date Sat 09/12/26 Sun 09/13/26 Mon 09/14/26 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 42 69 43 64 Temp 44 47 55 62 61 53 50 46 43 45 58 66 63 53 50 46 45 50 60 63 61 Dewpt 42 41 43 43 42 41 42 42 42 41 42 42 42 39 39 37 39 39 38 37 35 RH 93 79 64 50 49 64 74 86 96 86 55 42 46 59 66 71 79 66 44 38 38 Wind dir N N N N N W W W N NE NE NW NW W SW SW SW W W W NW Wind spd 0 0 1 6 13 12 8 2 1 4 6 9 14 11 9 9 11 17 23 19 14 Wind gust 21 26 25 33 34 31 25 Clouds B2 OV B2 B1 SC B1 SC B1 B2 B1 SC B1 B2 B1 SC B1 B2 B1 SC FW FW PoP 12hr 0 5 40 40 0 QPF 12hr 0 0 0 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C Obvis PF Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 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 39 67 42 67 41 75 45 77 Temp 48 40 61 64 50 43 59 64 50 42 66 72 54 46 68 73 Dewpt 38 38 39 35 40 41 40 36 39 38 38 36 39 38 39 37 PWind dir W N NW N SW SE W N Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC B1 B1 FW FW FW FW FW FW FW FW SC PoP 12hr 0 0 10 5 5 0 5 5 $$ MTZ326-122200- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 335 AM MDT Sat Sep 12 2026 Date Sat 09/12/26 Sun 09/13/26 Mon 09/14/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 71 40 75 37 65 Temp 45 48 59 68 69 57 49 44 42 46 61 73 70 54 46 41 39 47 56 63 64 Dewpt 45 44 45 42 42 45 45 44 42 41 42 41 34 41 43 40 38 38 36 35 36 RH 100 86 60 39 37 64 86100100 83 49 31 26 61 89 96 96 71 47 35 35 Wind dir W N N N E N W N NE E E S SW NW SW SW SW SW W W NW Wind spd 3 4 1 4 4 11 10 11 11 8 5 14 20 16 6 6 5 11 17 18 12 Wind gust 18 32 35 29 29 31 Clouds B2 B2 SC SC B2 B2 B1 SC B1 B1 SC FW B1 B1 B1 B1 SC SC SC FW FW PoP 12hr 0 5 5 40 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 34 69 36 68 36 75 40 77 Temp 43 36 61 67 46 39 58 66 45 39 65 73 49 43 67 74 Dewpt 39 34 39 34 41 39 40 37 40 37 38 34 38 35 38 37 PWind dir E NW E W E SW E SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW SC SC FW FW FW FW FW FW SC FW FW PoP 12hr 0 0 5 5 5 5 10 10 $$ MTZ330-122200- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 335 AM MDT Sat Sep 12 2026 Date Sat 09/12/26 Sun 09/13/26 Mon 09/14/26 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 72 37 67 26 59 Temp 32 40 63 71 68 55 46 39 37 46 63 67 62 49 40 31 26 36 52 58 57 Dewpt 32 34 32 28 29 31 31 31 33 36 36 29 22 21 22 22 22 25 27 24 22 RH 100 79 31 20 23 40 55 73 85 68 36 24 21 33 48 69 85 64 38 27 25 Wind dir N N SW SW SW SE SE N SE S SW SW SW SW SW SW SW SW SW SW SW Wind spd 0 0 5 13 9 2 1 1 3 20 25 26 26 19 23 16 11 17 13 11 8 Wind gust 25 34 37 37 37 32 33 Clouds SC SC SC B1 B2 B1 SC B1 B1 B1 SC SC FW FW SC SC FW FW FW FW FW PoP 12hr 0 10 5 5 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis F Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 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 25 65 26 68 28 70 31 71 Temp 34 26 58 63 37 26 60 64 38 29 63 67 41 32 64 68 Dewpt 25 23 28 19 24 25 30 24 29 28 33 28 29 28 34 30 PWind dir SW SW SW SW W SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW SC SC FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 5 5 10 10 $$ MTZ328-122200- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 335 AM MDT Sat Sep 12 2026 Date Sat 09/12/26 Sun 09/13/26 Mon 09/14/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 74 39 73 35 65 Temp 39 44 61 72 72 58 49 44 40 45 63 71 67 52 43 38 36 45 58 64 63 Dewpt 39 42 42 36 37 39 40 41 40 40 39 27 25 24 30 28 29 33 32 31 30 RH 100 93 49 27 28 49 71 89100 82 41 19 20 33 60 67 75 62 37 29 29 Wind dir E S N W N NE NE NE SW NW W W W W SW SW SW SW W W W Wind spd 4 3 2 4 9 10 9 6 4 4 11 25 25 17 13 12 13 18 13 9 8 Wind gust 31 39 37 32 24 Clouds B1 SC SC B1 B1 B1 B1 SC B2 FW SC FW FW FW SC SC SC FW FW FW CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 34 71 36 69 36 76 40 77 Temp 41 34 61 67 45 36 61 67 44 37 65 73 48 40 67 74 Dewpt 33 31 35 29 35 34 37 33 36 34 35 33 36 34 36 34 PWind dir SE SW NE N E SW S W Wind char LT LT GN LT LT LT LT LT Avg clouds FW FW FW FW FW SC SC FW FW FW FW CL FW SC SC FW PoP 12hr 0 0 0 5 5 5 10 10 $$ MTZ305-122200- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 335 AM MDT Sat Sep 12 2026 Date Sat 09/12/26 Sun 09/13/26 Mon 09/14/26 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 36 66 43 61 Temp 41 45 54 58 56 49 43 40 39 46 59 65 63 54 50 46 45 49 55 60 56 Dewpt 41 41 42 39 40 41 40 39 38 39 42 42 45 46 47 44 42 43 45 45 44 RH 100 86 64 49 55 74 89 96 96 76 53 43 52 74 89 93 89 80 69 58 64 Wind dir N E NE NE E E E E E E E E E W W SW SW W W W NW Wind spd 0 4 5 4 5 5 6 9 13 18 21 20 16 12 11 13 16 20 24 24 19 Wind gust 32 32 27 34 36 29 Clouds B2 OV B2 OV OV SC FW FW SC FW SC SC OV OV B2 B1 B1 B2 B1 B1 SC PoP 12hr 10 0 10 80 40 QPF 12hr 0 0 0 0.11 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs D D C C C C C C Obvis F Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 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 38 62 39 64 40 70 43 73 Temp 45 41 57 59 46 42 57 60 47 43 63 66 50 44 66 69 Dewpt 43 40 45 43 43 41 44 43 42 41 45 44 43 40 45 45 PWind dir W NE N W SE SW E E Wind char GN LT LT LT LT LT LT LT Avg clouds SC B1 B1 B1 B2 B1 B1 FW FW FW FW CL FW FW FW FW PoP 12hr 5 10 30 5 0 0 0 0 Rain shwrs S C $$ MTZ314-122200- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 335 AM MDT Sat Sep 12 2026 Date Sat 09/12/26 Sun 09/13/26 Mon 09/14/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 59 37 68 41 59 Temp 41 45 51 56 57 48 44 40 38 45 56 66 66 53 47 43 42 48 52 56 58 Dewpt 40 40 42 43 42 41 42 39 37 38 43 43 43 45 44 40 38 39 39 40 40 RH 96 82 71 62 57 77 93 96 96 76 62 43 43 74 89 89 86 71 61 55 51 Wind dir E E E E E E E E E SE SE SE SE W W W W W W W NW Wind spd 3 4 3 4 8 11 10 11 14 17 17 12 11 11 11 11 16 24 29 28 21 Wind gust 25 27 24 21 29 35 40 39 32 Clouds OV OV OV B2 OV B2 B1 B1 B2 SC SC FW B2 B2 B1 B1 SC B1 B1 SC SC PoP 12hr 10 5 5 70 10 QPF 12hr 0 0 0 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L C C Date Tue 09/15/26 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 37 63 39 62 41 72 45 74 Temp 43 39 57 61 46 42 55 60 46 43 66 69 49 46 67 70 Dewpt 39 37 41 39 40 40 42 40 40 37 39 39 39 36 39 40 PWind dir W SE NE NW SE SW SE SE Wind char GN LT LT LT LT LT LT LT Avg clouds FW SC SC SC B1 B1 B2 SC FW FW FW CL FW FW SC SC PoP 12hr 0 5 20 10 0 0 5 10 Rain shwrs S $$ http://www.weather.gov/greatfalls