Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
128 FOUS55 KTFX 200936 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 336 AM MDT Sun Sep 20 2026 MTZ312-202200- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 336 AM MDT Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 46 79 48 81 Temp 46 50 65 71 71 59 53 49 47 52 70 78 77 62 56 51 48 54 73 80 77 Dewpt 43 43 44 41 40 43 43 42 42 42 43 39 39 40 40 39 39 40 42 38 40 RH 89 77 46 34 32 55 69 77 83 69 38 25 25 44 55 63 71 59 33 22 26 Wind dir SW S S E E E S S S S S S S S S S SW SW SW SW E Wind spd 4 3 2 2 4 5 4 4 4 4 4 4 4 6 8 8 8 6 5 4 3 Clouds SC FW CL CL FW FW FW FW FW FW CL FW FW CL CL CL FW FW FW FW SC PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 51 80 50 78 52 81 50 65 Temp 59 51 73 76 58 51 71 75 59 53 74 76 58 51 61 62 Dewpt 41 40 43 39 42 41 42 41 41 41 42 40 42 41 40 37 PWind dir S SW SW S SE SW SW W Wind char LT GN LT LT GN GN GN GN Avg clouds SC SC SC FW SC SC FW FW SC SC SC SC B1 B1 B1 SC PoP 12hr 0 0 5 0 0 0 10 10 $$ MTZ303-202200- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 336 AM MDT Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 73 44 76 45 76 Temp 44 48 64 71 71 57 52 47 44 48 64 75 74 59 53 48 45 51 71 76 74 Dewpt 40 41 43 42 42 42 42 42 41 42 43 41 41 41 41 39 38 39 42 40 41 RH 86 77 46 35 35 57 69 83 89 80 46 29 30 51 64 71 76 63 35 27 30 Wind dir S SE S S SE SE SE SE S S SE S S SW SW W W W W W W Wind spd 4 3 6 6 10 9 6 3 2 4 8 9 9 9 6 4 5 6 6 9 9 Wind gust 19 Clouds FW CL CL CL CL FW FW FW SC FW FW CL FW FW FW FW FW FW FW FW SC PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 48 73 46 70 46 72 46 57 Temp 55 48 68 69 54 48 62 68 53 48 64 68 52 47 53 53 Dewpt 41 39 42 39 38 37 39 40 40 40 43 43 41 39 39 37 PWind dir W SW W SW SE SW W W Wind char GN GN GN LT LT LT BZ GN Avg clouds SC SC SC SC SC SC SC SC SC B1 B1 SC B1 B2 B1 B1 PoP 12hr 0 0 0 0 5 5 20 10 Rain S $$ MTZ319-202200- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 336 AM MDT Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 44 76 46 78 Temp 46 49 61 70 69 57 52 48 45 50 64 74 73 59 54 48 46 51 67 77 74 Dewpt 44 44 47 45 45 43 42 41 41 42 45 43 45 42 40 38 40 40 44 43 46 RH 93 83 60 41 42 59 69 77 86 74 50 33 37 53 59 68 79 66 43 30 37 Wind dir N N N E E SW SW W SW E E E E S S S N N E E E Wind spd 0 0 0 5 5 5 5 3 1 1 5 9 3 5 5 4 0 0 2 5 4 Wind gust 13 16 Clouds SC SC CL CL FW FW FW FW FW CL FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 78 49 79 50 81 49 69 Temp 57 49 69 74 56 49 68 76 58 50 71 76 58 50 62 63 Dewpt 41 41 46 45 43 42 45 46 42 41 44 43 41 41 40 38 PWind dir SW S SW S S S SW W Wind char LT LT LT LT LT LT GN LT Avg clouds SC SC SC FW SC FW SC FW SC FW SC FW SC SC B1 SC PoP 12hr 0 0 0 0 0 0 5 10 $$ MTZ326-202200- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 336 AM MDT Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 66 39 73 41 75 Temp 46 49 59 64 64 55 48 45 42 48 63 71 71 57 50 46 42 50 67 74 73 Dewpt 46 48 49 46 44 46 44 43 40 41 45 42 43 43 42 41 38 41 46 42 44 RH 100 96 69 52 48 72 86 93 93 77 52 35 36 59 74 83 86 71 47 32 35 Wind dir N SE N NW N SE SE S SE SE N N N SE E SE SE SE N N N Wind spd 0 2 0 2 0 5 5 4 2 1 0 0 0 6 5 5 4 3 0 0 0 Clouds B2 B1 FW FW FW FW FW FW FW CL FW FW FW CL CL CL FW FW SC SC SC PoP 12hr 5 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis F PF PF Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 45 76 45 78 46 80 47 73 Temp 54 46 66 74 55 47 69 76 56 49 72 77 57 48 65 68 Dewpt 41 37 43 45 43 41 45 47 42 39 43 43 41 40 42 42 PWind dir SE S SE S SE S S W Wind char LT LT LT LT LT LT GN LT Avg clouds SC SC SC FW FW SC SC FW FW FW FW FW SC SC SC SC PoP 12hr 5 5 5 0 0 0 5 10 $$ MTZ330-202200- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 336 AM MDT Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 62 26 69 29 71 Temp 36 40 51 58 59 47 38 34 30 36 57 66 66 49 40 33 30 40 63 70 66 Dewpt 36 40 43 41 38 39 38 34 30 35 40 35 34 35 35 32 30 35 40 33 32 RH 100100 74 53 45 74100100100 96 53 32 30 58 82 96100 82 43 25 28 Wind dir N N N N N N N N N N N SW SW N N N N N N SW SW Wind spd 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 5 4 Clouds B2 B1 SC SC SC SC FW SC SC FW FW FW FW FW FW FW SC SC SC SC B1 PoP 12hr 5 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis F F PF PF PF PF Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 33 69 32 72 34 72 36 68 Temp 44 34 59 66 44 34 65 69 45 36 65 68 47 37 61 64 Dewpt 34 32 42 36 37 34 40 34 34 32 38 33 34 33 38 32 PWind dir SW SW S SW S SW S S Wind char LT LT LT LT LT LT LT GN Avg clouds B1 B1 B1 FW FW SC SC FW SC SC FW FW SC SC SC SC PoP 12hr 10 10 0 0 0 0 5 10 $$ MTZ328-202200- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 336 AM MDT Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 67 38 72 40 74 Temp 43 47 57 66 65 53 48 44 40 47 61 70 70 56 50 45 41 48 65 74 72 Dewpt 43 46 47 45 43 42 40 39 37 39 43 40 40 39 39 37 35 37 43 41 42 RH 100 96 69 47 45 66 74 82 89 74 51 33 33 53 66 73 79 65 45 30 34 Wind dir S S W N NE E S S S SW W NW NE SE S S S S SW W SE Wind spd 4 3 1 2 3 3 4 4 4 3 2 2 3 4 5 5 5 4 2 3 4 Clouds SC B1 FW CL CL FW FW FW FW CL FW FW FW FW FW FW FW SC SC SC SC PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 43 75 43 78 44 78 45 72 Temp 53 44 67 73 53 45 68 75 54 47 71 75 54 46 66 68 Dewpt 40 37 44 41 41 39 44 42 39 37 42 40 38 37 41 39 PWind dir S SW S S S S S SW Wind char LT LT GN LT GN GN GN LT Avg clouds SC B1 SC FW SC SC SC FW SC SC FW FW SC SC B1 SC PoP 12hr 10 0 5 0 0 0 5 10 $$ MTZ305-202200- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 336 AM MDT Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 45 78 47 81 Temp 47 52 66 71 70 58 53 50 47 51 68 76 76 62 56 51 48 54 73 80 78 Dewpt 44 46 48 48 49 51 52 50 47 48 51 48 49 48 49 46 44 47 50 44 47 RH 89 80 52 44 47 77 96100100 89 54 37 39 60 77 83 86 77 44 28 33 Wind dir E E E E E E E E E E E SE SE SE SE SE S N SW W N Wind spd 2 2 3 4 10 11 5 3 1 1 3 4 8 12 8 4 2 0 2 3 0 Clouds B1 SC CL FW FW FW FW SC B1 SC FW FW FW CL FW FW FW FW CL FW FW PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF PF PF Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 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 81 48 78 51 82 48 67 Temp 58 51 74 77 56 50 71 74 59 54 74 77 58 51 63 62 Dewpt 45 42 46 44 43 40 42 42 43 43 46 46 45 42 41 39 PWind dir SE SW SW W E S SE W Wind char LT LT LT LT GN LT GN GN Avg clouds SC SC SC FW SC SC FW FW SC SC SC FW SC B1 SC SC PoP 12hr 0 0 5 0 0 0 10 10 $$ MTZ314-202200- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 336 AM MDT Sun Sep 20 2026 Date Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 65 43 74 46 79 Temp 47 50 59 64 63 53 50 48 45 52 67 72 72 57 54 51 47 57 74 78 75 Dewpt 46 47 49 48 47 49 47 46 43 45 45 41 44 45 45 42 38 41 41 38 42 RH 96 89 69 56 56 86 89 93 93 77 45 33 37 64 71 71 71 55 30 24 31 Wind dir S N N NE E E SE SE SE SE S S SE SE S S S S SW W SE Wind spd 1 0 0 2 4 8 4 5 4 2 3 3 4 9 10 8 5 3 2 3 2 Clouds OV B2 B1 B1 SC FW FW SC SC SC CL FW FW FW FW FW FW CL FW FW SC PoP 12hr 30 5 0 0 0 QPF 12hr 0.03 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain C S Obvis PF Date Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 Sat 09/26/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 78 49 79 51 82 49 68 Temp 57 51 73 74 57 51 73 74 59 54 76 76 58 50 63 63 Dewpt 42 37 41 43 41 39 41 42 41 39 41 41 41 39 39 38 PWind dir SE W SW S SE S S W Wind char LT LT LT LT GN GN GN GN Avg clouds SC SC SC FW SC SC SC FW FW SC SC FW FW SC B1 SC PoP 12hr 5 5 5 0 0 0 10 10 $$ http://www.weather.gov/greatfalls