Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
947 FOUS55 KTFX 210935 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 335 AM MDT Mon Sep 21 2026 MTZ312-212200- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 335 AM MDT Mon Sep 21 2026 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 79 48 80 49 80 Temp 48 52 71 78 77 63 57 53 50 54 73 80 77 64 58 53 50 56 73 79 77 Dewpt 42 43 45 40 41 42 41 41 41 41 43 40 40 41 42 41 41 42 44 39 39 RH 80 71 39 26 28 46 55 64 71 61 34 24 26 43 55 64 71 59 35 24 25 Wind dir S S S S SE SE S S SW SW SW SW S S S SW SW SW SW SW W Wind spd 5 5 5 5 4 8 9 9 6 5 4 2 2 4 4 6 6 6 8 10 9 Wind gust 20 Clouds FW FW CL CL FW FW FW FW SC SC SC B1 B2 B1 SC SC FW FW CL FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 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 50 83 54 79 47 65 41 64 Temp 58 51 74 79 62 56 74 73 56 49 59 62 49 42 57 62 Dewpt 40 40 45 41 42 42 42 41 41 40 38 36 37 37 37 36 PWind dir S S S SW W W NE SW Wind char LT LT GN GN GN LT LT LT Avg clouds FW SC SC FW FW SC SC SC B1 SC SC SC B1 B1 B1 B1 PoP 12hr 0 0 5 5 20 10 10 10 Rain S $$ MTZ303-212200- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 335 AM MDT Mon Sep 21 2026 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 76 44 77 47 73 Temp 45 48 64 75 75 59 54 49 46 51 72 76 74 60 55 50 48 54 68 73 70 Dewpt 42 42 44 41 41 41 41 39 38 38 42 38 41 41 41 39 38 39 39 37 37 RH 89 80 48 29 29 51 61 68 73 61 34 25 30 49 59 66 68 57 34 27 30 Wind dir SE SE SE S S S S W W SW W W W W SW W W W W W W Wind spd 2 3 8 9 8 6 5 4 5 6 8 9 8 9 8 8 8 9 12 16 12 Wind gust 23 27 23 Clouds FW SC FW CL CL FW FW FW SC SC SC SC B1 B1 SC FW FW FW SC SC SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF PF Date Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 46 75 48 70 42 57 38 58 Temp 54 47 65 73 56 50 65 64 50 45 51 53 46 39 51 56 Dewpt 37 36 42 44 43 42 44 42 39 39 38 36 36 36 37 36 PWind dir W S SE SW W W SW SW Wind char GN LT LT GN BZ GN GN LT Avg clouds SC B1 B1 SC SC B1 B1 B1 SC B1 B1 B1 SC B1 B1 B1 PoP 12hr 0 0 10 5 20 10 5 5 Rain S S $$ MTZ319-212200- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 335 AM MDT Mon Sep 21 2026 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 76 45 77 49 78 Temp 45 50 65 75 74 61 55 50 46 51 66 75 74 62 57 52 49 53 70 77 75 Dewpt 40 42 47 46 47 44 41 40 40 41 43 42 46 43 43 41 42 43 47 43 46 RH 82 74 52 36 38 53 59 68 79 68 43 31 37 50 59 66 77 69 44 30 36 Wind dir W N E E E W SW W SW N E SE N SW S S SW N SE SW W Wind spd 1 0 4 8 5 4 4 4 1 0 3 4 0 6 6 4 2 0 4 8 6 Wind gust 18 Clouds FW FW CL CL FW FW FW FW SC SC B1 B2 OV B1 B1 SC FW FW CL FW FW PoP 12hr 0 0 0 10 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF PF Date Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 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 49 81 51 78 47 67 41 67 Temp 57 49 71 78 60 51 70 71 56 47 60 62 50 41 59 63 Dewpt 42 41 48 46 42 41 44 45 42 40 38 36 37 37 39 38 PWind dir SW SE S SW W NW W N Wind char LT LT LT LT GN LT LT LT Avg clouds SC SC FW FW FW SC SC FW SC SC B1 SC SC SC B1 SC PoP 12hr 0 0 5 5 20 10 20 10 Rain S S S $$ MTZ326-212200- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 335 AM MDT Mon Sep 21 2026 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 73 41 75 45 76 Temp 42 48 64 71 71 57 51 47 44 50 66 73 73 60 54 50 46 52 67 74 75 Dewpt 40 42 46 43 43 44 45 43 40 41 45 42 46 45 44 43 41 43 46 44 46 RH 93 80 52 36 36 62 80 86 86 71 47 33 38 58 69 77 83 71 47 34 36 Wind dir SE SE N NW N SE SE S S SE N N N S S S SE S W N N Wind spd 4 2 0 1 0 8 6 5 2 1 0 0 0 5 4 4 4 4 1 0 0 Clouds FW FW CL FW CL FW FW FW B1 SC B1 B2 B2 B2 B2 SC SC FW CL FW FW PoP 12hr 0 0 0 10 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF PF Date Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 45 81 47 78 44 68 39 68 Temp 55 46 69 78 56 49 71 74 54 46 61 65 48 40 60 66 Dewpt 43 39 44 46 42 40 43 45 43 41 43 42 42 39 42 42 PWind dir SE S SE S SW W E SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW SC FW SC SC SC SC SC SC SC SC PoP 12hr 0 0 0 5 20 10 20 20 Rain S S S S S S $$ MTZ330-212200- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 335 AM MDT Mon Sep 21 2026 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 67 30 68 34 67 Temp 31 37 58 65 65 49 41 35 32 40 62 67 63 51 44 38 35 41 60 66 65 Dewpt 31 37 42 37 37 37 37 35 32 36 40 35 36 39 40 38 35 40 46 40 39 RH 100100 55 35 35 63 85100100 85 44 30 36 63 86100100 96 60 38 38 Wind dir N N N SW SW N N N N N SW SW SW SW N N N N SW SW SW Wind spd 0 0 0 1 1 0 0 0 0 0 2 5 3 1 0 0 0 0 3 6 5 Clouds FW FW FW FW FW FW FW SC B2 B2 B2 B1 OV B2 B1 B1 B1 SC FW FW FW PoP 12hr 0 0 0 30 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S Obvis F F Date Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 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 72 35 70 35 65 31 64 Temp 43 33 64 69 46 37 64 66 46 37 59 61 42 32 57 60 Dewpt 38 33 40 34 35 33 39 36 36 35 38 33 34 32 37 32 PWind dir S SW SW SW S SW S SW Wind char LT LT LT LT GN GN LT LT Avg clouds FW FW FW CL FW FW SC FW SC SC SC SC SC SC B1 SC PoP 12hr 0 0 0 0 10 10 10 20 Rain S $$ MTZ328-212200- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 335 AM MDT Mon Sep 21 2026 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 72 41 73 42 75 Temp 41 47 62 70 70 56 50 46 43 49 65 72 69 57 52 47 43 49 67 74 73 Dewpt 37 40 45 43 42 41 40 39 38 40 44 44 44 44 44 41 39 42 47 41 42 RH 85 76 54 38 36 57 68 76 82 71 46 37 40 62 74 79 86 77 49 30 33 Wind dir S SW SW W N SE S S S SW W SW SW S S S S S SW SW SW Wind spd 5 4 2 2 3 4 6 5 4 3 2 3 4 5 6 6 6 5 3 6 8 Clouds FW CL CL CL CL FW FW FW B1 SC B2 B1 B1 B2 B1 SC FW FW CL FW FW PoP 12hr 0 0 10 20 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Date Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 43 78 45 76 42 70 38 69 Temp 53 44 70 75 54 48 70 72 52 44 61 66 48 39 61 65 Dewpt 42 39 46 42 38 37 42 42 41 39 41 39 38 37 40 38 PWind dir S S S SW SW SW S SW Wind char GN LT GN GN GN LT LT LT Avg clouds FW FW FW FW FW SC SC FW SC B1 B1 SC SC B1 B1 SC PoP 12hr 0 0 0 5 10 5 10 10 $$ MTZ305-212200- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 335 AM MDT Mon Sep 21 2026 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 79 46 80 49 81 Temp 47 51 67 77 76 61 55 51 48 52 70 78 78 63 57 53 50 56 73 80 77 Dewpt 47 49 51 48 49 50 50 48 46 47 49 45 48 47 46 45 42 44 44 40 42 RH 100 93 56 36 39 67 83 89 93 83 47 31 35 56 67 74 74 64 35 24 29 Wind dir E N S SE SE SE E E N N SW S E SE S S SW SW W W W Wind spd 3 0 3 4 8 12 8 4 0 0 1 2 1 5 3 3 4 6 9 10 5 Clouds SC B1 FW CL FW FW FW FW B1 SC FW SC OV B1 B1 SC SC FW CL CL FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis F F Date Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 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 48 83 54 82 46 67 41 66 Temp 57 49 75 80 63 56 75 75 56 48 61 63 49 42 60 63 Dewpt 41 38 46 46 46 45 47 45 45 41 41 38 39 37 38 39 PWind dir S S SE S W W SE S Wind char LT LT GN LT BZ GN LT LT Avg clouds FW SC SC FW SC SC SC FW B1 B1 SC SC SC SC B1 SC PoP 12hr 0 0 5 0 20 10 10 10 Rain S $$ MTZ314-212200- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 335 AM MDT Mon Sep 21 2026 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 44 79 48 78 Temp 45 51 67 73 71 57 53 51 48 55 73 77 74 60 56 54 50 58 73 77 74 Dewpt 44 46 47 43 45 47 47 44 41 41 43 40 43 44 44 42 38 42 44 42 43 RH 96 83 49 34 39 69 80 77 77 59 34 26 33 55 64 64 63 55 35 29 33 Wind dir SE SE S NE E SE SE SE SE S W N E SE S SW SW W W W NW Wind spd 5 3 2 3 5 10 8 8 4 1 2 2 3 6 4 3 3 3 3 4 2 Clouds SC FW CL FW FW FW FW FW FW FW SC SC B2 B1 B1 B2 B1 FW CL FW FW PoP 12hr 0 0 0 5 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF PF Date Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 Sun 09/27/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 48 82 52 81 44 67 39 66 Temp 57 50 77 78 61 56 76 75 56 47 60 63 50 40 59 63 Dewpt 42 37 42 42 42 40 41 42 42 38 38 36 37 35 38 37 PWind dir S S SE S W NW SE S Wind char LT LT GN GN GN LT LT LT Avg clouds FW SC FW FW FW FW FW FW SC SC SC SC SC SC B1 SC PoP 12hr 0 0 0 5 20 10 20 20 Rain S S S $$ http://www.weather.gov/greatfalls