Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
212 FOUS55 KTFX 192135 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 335 PM MDT Sat Sep 19 2026 MTZ312-201000- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 335 PM MDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 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 46 74 47 79 50 Temp 62 55 51 48 46 50 65 72 72 59 53 50 47 53 71 79 77 63 57 52 50 Dewpt 41 41 42 43 44 43 43 41 40 43 43 43 42 43 44 40 40 41 41 39 39 RH 46 59 71 83 93 77 45 33 31 55 69 77 83 69 38 25 26 44 55 61 66 Wind dir SE SE S S S S S SE E SE S S S S SW SW S S S SW SW Wind spd 8 6 4 4 3 3 2 2 5 4 4 5 5 4 4 4 3 6 8 8 6 Clouds B2 B2 B1 B1 SC FW CL CL FW FW FW FW B1 FW CL CL CL FW CL CL FW PoP 12hr 10 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 81 52 80 52 79 52 77 49 66 Temp 73 76 59 52 73 77 59 53 72 75 59 52 69 71 56 49 59 63 Dewpt 41 39 41 41 42 40 42 42 42 41 43 42 42 41 43 42 41 40 PWind dir SW S SW SW SW E SW SW W Wind char LT LT LT LT LT LT LT GN LT Avg clouds FW FW SC SC SC FW SC SC SC FW SC SC SC SC B1 B1 B2 B1 PoP 12hr 0 0 5 5 5 5 10 10 20 Rain S S $$ MTZ303-201000- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 335 PM MDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 43 73 43 77 46 Temp 66 55 50 46 43 48 63 71 71 57 52 46 43 48 66 76 74 60 53 49 46 Dewpt 40 40 40 39 40 41 42 40 40 41 43 41 41 42 45 41 41 41 40 39 38 RH 38 57 68 76 89 77 46 32 32 55 71 83 93 80 47 28 30 49 61 68 73 Wind dir SE SE S S S S S S SE SE SE S S S S S SW SW SW W W Wind spd 12 10 8 6 4 4 8 8 10 8 4 2 2 2 6 9 10 8 5 4 5 Clouds FW FW SC FW FW CL CL CL FW FW FW FW B1 FW CL CL CL FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 76 49 74 48 71 47 67 44 58 Temp 71 72 54 49 68 71 55 49 64 68 53 47 59 63 50 45 52 56 Dewpt 42 40 41 40 42 40 40 39 39 41 41 41 43 43 41 40 41 40 PWind dir W W W SW W NE SW W NW Wind char LT LT LT GN LT LT LT GN GN Avg clouds FW FW FW SC SC SC SC SC SC B1 SC SC SC B1 B1 B2 B2 B1 PoP 12hr 0 0 0 5 0 10 10 20 20 Rain S S S S $$ MTZ319-201000- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 335 PM MDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 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 45 72 44 76 46 Temp 59 55 52 49 46 50 63 70 70 57 52 48 45 50 66 75 74 59 54 49 46 Dewpt 49 45 45 45 44 45 47 41 43 42 41 41 40 42 47 43 45 42 41 38 39 RH 69 69 77 86 93 83 56 35 38 57 66 77 82 74 50 32 35 53 61 66 76 Wind dir E SW N N N N E E SE SW SW SW SW N SE SE SE SW SW SW N Wind spd 4 4 0 0 0 0 1 5 2 5 4 3 1 0 3 8 5 5 4 4 0 Clouds B2 B2 B1 B1 SC SC FW FW FW FW FW FW FW FW CL CL CL FW FW FW FW PoP 12hr 10 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain Obvis PF Date 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 78 49 78 49 79 49 78 48 69 Temp 68 74 57 49 70 75 57 49 68 75 58 49 68 73 56 48 61 64 Dewpt 45 44 41 41 44 46 43 42 46 46 43 42 44 44 42 42 42 41 PWind dir E SW S SW S S S SW W Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC FW SC SC SC FW FW SC SC FW SC B1 B1 B1 PoP 12hr 0 5 0 5 0 5 5 10 20 Rain S S $$ MTZ326-201000- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 335 PM MDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 44 66 40 73 42 Temp 57 54 51 49 47 49 59 64 64 55 49 45 42 48 63 71 72 57 50 46 43 Dewpt 51 51 50 49 47 48 47 40 41 46 45 43 40 41 45 43 44 43 42 40 37 RH 80 90 96100100 96 64 41 43 72 86 93 93 77 52 36 37 59 74 79 79 Wind dir NW S N N N W N N SE SE SE SE SE SE N W N SE SE SE SE Wind spd 3 3 0 0 0 1 0 0 1 5 5 4 3 3 0 1 0 8 5 5 4 Clouds B2 OV B2 B2 B2 B1 SC FW FW FW FW SC SC FW CL CL CL FW FW CL FW PoP 12hr 40 5 0 0 0 QPF 12hr 0.04 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain C C S Rain shwrs Tstms Obvis F F F PF Date 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 76 45 77 45 79 46 78 45 71 Temp 66 73 54 48 68 74 55 48 70 77 56 48 70 75 55 47 64 68 Dewpt 43 44 42 40 44 45 44 41 45 46 42 39 43 44 43 41 44 43 PWind dir SE SE SW S SW SE S SE SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW SC SC B1 SC FW FW SC FW FW FW FW SC SC SC B1 B1 SC PoP 12hr 0 5 0 5 0 0 0 10 20 Rain S $$ MTZ330-201000- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 335 PM MDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 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 63 29 69 30 Temp 52 45 41 40 38 41 52 59 61 47 39 35 31 38 57 66 67 50 40 34 30 Dewpt 43 43 41 40 38 41 42 38 39 40 39 35 31 37 40 35 35 37 35 33 30 RH 71 93100100100100 69 45 44 76100100100 96 53 32 30 61 82 96100 Wind dir N N N N N N N N N N N N N N N SW SW N N N N Wind spd 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 0 0 0 Clouds B2 B2 B2 OV B2 B1 SC B1 B1 SC B1 B1 B1 SC CL CL FW FW FW FW SC PoP 12hr 60 5 5 0 0 QPF 12hr 0.07 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain C S Rain shwrs L Tstms S Obvis F F F F Date 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 71 35 69 34 72 36 72 36 69 Temp 63 66 45 37 61 65 44 35 65 69 46 36 65 68 46 36 61 64 Dewpt 38 31 34 33 41 38 38 35 39 34 34 32 37 34 35 34 38 34 PWind dir SW SW SW SW SW S SW S SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC B1 B1 B1 FW FW FW SC CL FW SC SC SC SC B1 B1 SC PoP 12hr 0 10 10 5 0 0 0 10 20 Rain S $$ MTZ328-201000- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 335 PM MDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 42 67 40 74 42 Temp 57 51 49 46 43 47 57 66 65 53 49 45 42 48 64 73 71 57 51 46 43 Dewpt 50 48 47 46 43 47 44 36 39 42 41 40 38 41 46 43 41 41 40 37 35 RH 77 89 93100100100 62 33 38 66 74 82 86 77 52 34 34 55 66 71 73 Wind dir N NE SE S S S SW N NE SE S S S S W W N SE S S S Wind spd 9 3 3 2 3 3 1 2 2 3 4 4 4 4 2 2 3 4 4 4 5 Clouds B1 B1 B1 SC SC B1 FW FW FW FW FW FW FW CL CL CL CL FW FW FW FW PoP 12hr 20 0 0 0 0 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain S Rain shwrs Tstms Date 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 75 45 76 44 78 45 77 44 72 Temp 67 73 54 47 69 73 53 45 69 75 54 46 69 74 53 45 64 67 Dewpt 44 41 39 37 43 41 42 40 44 41 39 37 41 41 40 38 41 40 PWind dir SW S SW S S S S S S Wind char LT LT LT GN LT GN LT GN LT Avg clouds FW SC SC B1 SC FW FW SC SC FW FW SC SC FW SC B1 B1 SC PoP 12hr 0 10 0 5 0 0 5 5 20 Rain S $$ MTZ305-201000- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 335 PM MDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 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 46 74 46 79 48 Temp 67 56 51 48 46 52 67 72 72 59 53 50 48 52 70 78 76 62 56 51 48 Dewpt 41 41 43 44 45 47 48 47 50 51 52 50 48 49 52 48 49 48 50 47 45 RH 39 57 74 86 96 83 50 41 46 75 96100100 89 53 35 39 60 80 86 89 Wind dir E SE E E E E E SE SE SE SE SE SE N SE S S SE SE SE N Wind spd 8 8 5 4 3 2 3 4 10 9 4 3 2 0 3 3 5 11 6 3 0 Clouds OV B1 B1 B1 B1 SC CL CL FW FW SC SC OV SC CL CL CL FW FW FW FW PoP 12hr 5 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 81 51 82 51 79 51 78 48 67 Temp 73 77 58 52 73 78 58 53 73 75 59 52 71 73 56 49 62 64 Dewpt 49 45 45 44 46 46 45 43 43 44 45 45 46 46 45 44 43 42 PWind dir SW S SW SW W E E S NW Wind char LT LT LT LT LT LT LT GN GN Avg clouds FW FW SC SC SC FW SC SC SC FW SC SC SC SC B1 B1 B1 SC PoP 12hr 0 0 0 5 5 10 5 20 10 Rain S $$ MTZ314-201000- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 335 PM MDT Sat Sep 19 2026 Date 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 46 65 44 74 47 Temp 55 50 50 49 47 50 59 64 63 53 50 48 46 51 67 73 71 57 54 51 48 Dewpt 43 45 46 48 47 48 48 45 46 50 48 47 44 45 46 43 45 46 46 42 38 RH 64 83 86 96100 93 67 50 54 89 93 96 93 80 47 34 39 67 74 71 68 Wind dir SW S S W SE N E E E SE SE SE SE S S S S S S S S Wind spd 4 3 2 2 1 0 1 3 6 6 4 5 5 3 2 2 3 9 9 8 5 Clouds OV OV OV OV OV B2 B1 SC SC SC FW SC SC FW CL CL CL FW FW FW FW PoP 12hr 80 30 5 0 0 QPF 12hr 0.17 0.03 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain L D C L C S Obvis F Date 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 50 78 51 79 51 78 47 67 Temp 74 74 57 52 74 74 57 53 73 75 59 52 72 73 56 49 60 63 Dewpt 41 42 42 40 42 44 43 40 42 43 42 40 42 42 43 41 41 41 PWind dir SW S SW S S SE S S W Wind char LT LT LT LT LT GN LT GN LT Avg clouds FW FW SC SC B1 SC SC FW SC FW FW SC SC SC SC B1 B1 B1 PoP 12hr 0 0 5 5 0 5 0 10 30 Rain S C $$ http://www.weather.gov/greatfalls