Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
219 FOUS55 KTFX 172019 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 219 PM MDT Sun Aug 17 2025 MTZ312-181000- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 219 PM MDT Sun Aug 17 2025 Date 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 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 56 89 59 95 60 Temp 81 78 68 63 59 57 64 79 86 88 76 68 62 59 69 84 93 94 80 70 65 60 Dewpt 46 52 52 53 52 51 50 51 48 46 48 50 47 48 48 48 46 41 45 46 46 46 RH 29 40 57 70 78 80 60 38 27 23 37 52 58 67 47 29 20 16 29 42 50 60 Wind dir SW SW S SW SW SW SW SW SW W E S SW SW SW SW SW SW NE N W SW Wind spd 8 9 6 5 5 4 4 3 8 10 5 4 4 5 4 3 5 8 6 5 5 5 Clouds SC B2 B1 FW FW FW SC FW FW FW FW FW FW FW CL CL FW FW SC SC SC FW PoP 12hr 20 20 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Date 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 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 92 57 82 54 78 51 82 53 84 Temp 84 91 68 58 74 81 63 55 70 77 60 52 71 82 63 54 73 82 Dewpt 47 43 49 48 48 43 44 44 45 43 41 42 43 44 44 44 44 43 PWind dir W NW NW NE NE NE SE E NW Wind char LT GN LT GN LT GN LT GN LT Avg clouds FW FW SC SC FW CL FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 10 5 5 0 0 0 0 0 $$ MTZ303-181000- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 219 PM MDT Sun Aug 17 2025 Date 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 50 85 54 90 58 Temp 77 78 66 57 52 50 60 75 82 84 71 62 57 54 66 81 87 89 74 66 61 58 Dewpt 36 36 41 43 43 42 43 44 44 46 46 46 46 46 46 48 44 44 46 48 48 46 RH 23 22 40 59 71 74 53 33 26 27 41 56 67 74 48 32 22 21 37 52 62 64 Wind dir W W W W W W W S S W W NW W W W SE SW W NW NW W W Wind spd 11 12 8 6 6 5 4 9 11 12 6 5 5 5 4 6 10 11 6 5 6 8 Wind gust 21 23 23 Clouds SC SC FW FW SC SC SC SC FW FW FW FW FW FW FW FW FW FW B1 B1 B1 SC PoP 12hr 5 5 0 5 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 51 77 48 73 47 78 49 79 Temp 82 85 62 52 68 76 57 49 65 73 55 47 68 77 58 49 70 78 Dewpt 46 40 44 46 48 40 44 42 41 40 41 40 43 43 42 43 44 42 PWind dir W NW NW N NE E SE E SE Wind char GN GN GN GN LT GN LT GN LT Avg clouds FW FW FW SC SC FW FW SC SC FW FW FW FW FW FW FW FW FW PoP 12hr 0 5 5 5 0 0 0 0 0 $$ MTZ319-181000- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 219 PM MDT Sun Aug 17 2025 Date 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 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 55 89 58 95 59 Temp 78 73 68 63 58 55 59 74 85 87 76 69 63 58 64 82 92 94 82 73 65 59 Dewpt 50 51 52 53 51 50 52 54 50 46 48 49 46 46 47 48 43 37 42 42 41 42 RH 37 46 57 70 77 83 78 50 30 24 37 49 54 64 54 31 18 14 24 33 41 53 Wind dir W SW SW SW W SW NE E E SE SE SW SW SW SE SE SE E NW W W SW Wind spd 8 9 5 5 3 2 2 5 6 6 5 3 2 2 2 5 8 8 5 4 3 2 Wind gust 17 Clouds B2 B2 SC FW FW SC SC FW SC SC SC FW FW FW CL CL FW SC SC SC FW FW PoP 12hr 30 20 10 0 0 QPF 12hr 0.01 0.01 0.03 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C S Tstms C C S Date 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 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 92 57 86 53 83 52 86 55 86 Temp 83 89 71 58 76 84 66 54 71 82 64 53 73 86 66 56 75 85 Dewpt 48 41 45 45 46 36 40 42 46 40 42 42 46 40 43 44 46 38 PWind dir W W NW NW N NW NE NW N Wind char LT GN LT LT LT LT LT LT LT Avg clouds FW FW SC SC FW FW CL FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 0 5 5 5 0 0 5 5 10 $$ MTZ326-181000- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 219 PM MDT Sun Aug 17 2025 Date 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 50 89 53 96 55 Temp 80 71 65 60 55 51 60 77 87 87 74 64 59 53 64 84 93 94 79 68 61 55 Dewpt 46 51 52 52 49 48 50 49 45 43 46 47 43 41 41 39 33 32 36 37 37 35 RH 30 49 63 75 80 89 69 37 23 21 37 54 55 64 43 20 12 11 21 32 41 47 Wind dir S NW SE S S SE N NW W S SE SE SE SE S W W E SE SE SE S Wind spd 5 9 5 5 5 4 2 4 6 6 6 6 6 5 2 2 4 5 9 10 8 5 Clouds B2 B2 B2 SC SC SC SC FW SC B1 SC FW CL CL FW FW FW FW FW FW FW FW PoP 12hr 40 20 5 0 0 QPF 12hr 0 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S Tstms C C S S Obvis H K H H H H Date 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 94 53 86 50 85 48 87 50 87 Temp 85 90 67 54 77 84 62 51 74 84 61 49 75 86 62 51 76 84 Dewpt 41 41 47 45 45 39 45 44 45 40 45 42 44 40 44 42 43 40 PWind dir W SW W NE N E NE E SW Wind char LT LT LT GN LT GN LT GN LT Avg clouds FW FW SC SC FW FW FW FW FW FW FW FW FW FW SC FW FW SC PoP 12hr 0 5 5 5 0 5 5 10 10 $$ MTZ330-181000- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 219 PM MDT Sun Aug 17 2025 Date 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 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 40 82 40 86 43 Temp 77 72 60 52 45 40 52 76 81 80 67 56 45 40 55 81 86 84 70 57 48 43 Dewpt 37 43 46 47 44 40 44 40 32 31 34 34 32 31 34 32 25 26 29 30 29 31 RH 24 35 60 83 96100 74 27 17 17 29 43 60 70 45 17 11 12 22 35 47 62 Wind dir S SW NE N NE S SE SW SW SW S SE E E N SW SW SW S SE SE SE Wind spd 13 11 4 3 2 1 2 12 14 13 4 2 2 1 0 5 10 10 4 4 2 1 Clouds B1 B1 B1 SC FW FW FW FW FW FW SC FW FW FW FW CL FW FW FW SC FW FW PoP 12hr 40 10 0 0 0 QPF 12hr 0.04 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S Tstms C C S Date 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 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 85 43 83 40 83 39 83 42 80 Temp 81 83 58 43 76 81 54 40 76 80 53 39 77 80 54 42 75 75 Dewpt 36 36 40 39 38 30 36 36 37 30 39 38 39 33 38 38 39 38 PWind dir S S W N N N N N S Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC FW FW FW FW FW FW FW FW FW SC SC SC SC B1 PoP 12hr 10 10 5 5 5 5 20 10 30 Rain shwrs S C $$ MTZ328-181000- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 219 PM MDT Sun Aug 17 2025 Date 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 48 86 50 92 52 Temp 76 69 60 55 51 49 58 76 84 84 69 61 54 50 61 81 90 91 74 64 56 53 Dewpt 49 54 54 50 49 47 49 50 44 44 45 43 40 38 39 39 35 33 33 31 32 32 RH 39 59 81 83 93 93 72 40 25 25 42 51 59 63 44 22 14 13 22 29 40 44 Wind dir SW SE SE E S S S SW SW S E S S S S SW SW S S S S S Wind spd 10 8 5 5 5 5 5 5 10 10 6 6 5 6 4 5 9 13 10 10 8 6 Clouds B2 B2 B1 FW SC SC FW FW SC B1 SC FW CL FW CL CL FW FW FW FW FW FW PoP 12hr 50 20 0 0 0 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C S Tstms C S S Date 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 49 85 47 84 47 86 49 84 Temp 83 86 62 49 75 84 59 47 73 83 58 47 74 85 59 49 75 82 Dewpt 41 40 45 42 46 36 39 38 43 38 41 40 45 40 41 39 43 43 PWind dir SW W W N NE NE N E W Wind char LT GN LT GN LT GN LT LT LT Avg clouds FW SC SC FW CL CL FW FW CL CL FW FW FW FW SC SC SC SC PoP 12hr 0 0 0 5 0 0 10 10 20 Rain shwrs S $$ MTZ305-181000- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 219 PM MDT Sun Aug 17 2025 Date 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 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 57 89 60 95 61 Temp 83 83 73 65 60 57 66 81 87 88 77 69 63 60 70 86 93 94 81 72 65 62 Dewpt 43 44 50 55 53 53 53 53 49 50 52 54 53 53 53 55 52 52 54 53 53 54 RH 24 25 44 70 78 86 63 38 27 27 42 59 70 78 55 35 25 24 39 51 65 75 Wind dir W W S SW S SE SW SW SW SW SE SE S S W W NW E E S NE NE Wind spd 10 6 5 5 4 4 3 5 5 5 5 5 4 2 2 4 5 5 6 5 5 4 Clouds SC SC B2 B1 FW FW FW FW FW CL FW FW FW FW CL FW FW FW FW SC B1 SC PoP 12hr 10 20 0 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 Max heat 82 80 80 86 84 85 92 88 Date 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 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 92 57 81 51 77 50 80 52 81 Temp 86 90 69 58 74 79 60 52 71 76 58 51 72 79 60 53 73 79 Dewpt 55 49 53 51 51 47 47 45 45 43 45 43 46 46 45 45 47 46 PWind dir NW W NW NE NE E E E E Wind char LT GN GN LT GN GN GN GN GN Avg clouds FW FW SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 10 5 5 5 0 0 0 0 $$ MTZ314-181000- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 219 PM MDT Sun Aug 17 2025 Date 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 53 85 58 91 59 Temp 79 73 62 58 55 53 63 77 83 83 70 64 60 59 70 86 91 89 75 68 63 60 Dewpt 49 58 58 54 51 50 52 53 54 53 55 52 49 47 51 52 47 44 48 46 44 42 RH 35 59 87 86 86 89 67 43 37 36 59 65 67 64 51 31 22 21 38 45 50 51 Wind dir N SW S SE S S S E E W SE SE SE S S W SW N SE SE S SW Wind spd 5 6 5 4 3 3 2 3 5 5 5 5 4 4 2 4 5 5 6 6 5 5 Clouds SC B2 OV SC SC FW FW CL SC FW SC FW FW FW CL CL FW FW FW FW FW FW PoP 12hr 70 20 10 0 0 QPF 12hr 0.43 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L S S Tstms C S S Date 08/20/25 Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 56 78 51 74 48 77 50 78 Temp 83 86 66 57 72 76 59 52 68 73 57 49 69 76 58 51 72 76 Dewpt 49 48 51 48 50 48 48 45 46 46 43 40 45 47 45 42 47 47 PWind dir W W NW E E E E SE E Wind char LT LT LT LT LT GN LT GN LT Avg clouds FW FW SC B1 SC FW FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 20 10 10 5 5 5 5 10 Rain shwrs S S Tstms S S $$ http://www.weather.gov/greatfalls