Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
159 FOUS55 KTFX 182004 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 204 PM MDT Mon Aug 18 2025 MTZ312-191000- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 204 PM MDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 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 59 96 60 92 56 Temp 84 88 76 68 62 59 68 85 93 95 81 71 65 61 69 83 89 91 75 67 62 57 Dewpt 45 46 47 49 48 47 47 48 45 42 45 47 48 47 49 46 43 44 47 47 47 48 RH 26 23 36 51 60 64 47 28 19 16 28 42 54 60 49 27 20 20 37 49 58 72 Wind dir SW W SE S S SW SW SW SW W N NW W SW W NW NW W N NW W NW Wind spd 6 9 5 5 4 5 3 3 5 8 6 5 5 5 5 5 6 10 9 6 5 5 Clouds FW FW SC FW FW FW CL FW FW FW SC SC FW FW FW FW FW SC B1 SC SC FW PoP 12hr 20 0 20 0 20 QPF 12hr 0.03 0 0.02 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S S S Tstms S S Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 82 53 80 52 84 54 88 56 89 Temp 71 80 63 54 70 79 62 53 73 84 64 55 76 86 65 57 81 87 Dewpt 49 42 44 43 43 43 43 43 44 43 45 45 45 43 46 45 47 40 PWind dir NW NE NE NE NW E SE E W Wind char LT GN LT GN LT GN LT LT LT Avg clouds FW FW FW FW FW CL CL FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 5 5 0 0 0 0 0 5 5 $$ MTZ303-191000- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 204 PM MDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 53 89 59 87 50 Temp 82 83 70 62 56 54 64 80 87 89 75 68 64 60 68 81 86 83 70 61 54 50 Dewpt 35 38 44 45 43 43 45 46 42 42 45 47 47 47 48 44 41 39 41 43 45 45 RH 18 20 39 54 62 66 50 30 21 19 34 47 54 62 49 27 21 21 35 51 71 83 Wind dir SW SW NW NW NW NW NW N SW W W W W W W W W W W NW NW NW Wind spd 10 11 5 4 5 5 4 5 9 10 6 6 8 8 9 11 14 18 12 10 10 9 Wind gust 20 21 19 27 28 Clouds CL FW FW FW FW FW FW FW FW FW SC B2 B1 SC FW FW FW FW FW FW SC FW PoP 12hr 20 5 20 5 5 QPF 12hr 0.01 0 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S Tstms S Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 77 48 76 48 81 50 83 52 84 Temp 67 76 57 48 66 75 57 48 70 80 60 50 74 82 62 52 76 83 Dewpt 46 40 41 39 41 41 41 41 44 43 44 42 44 43 44 43 44 39 PWind dir N NE NE E SE SE SE SE SW Wind char GN GN GN GN LT GN LT GN GN Avg clouds FW FW FW FW FW CL FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 5 0 0 0 0 0 0 0 5 $$ MTZ319-191000- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 204 PM MDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 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 58 96 59 92 57 Temp 85 86 76 69 64 59 64 81 93 94 81 72 65 60 65 82 91 87 78 69 63 58 Dewpt 50 46 49 49 48 47 49 50 43 37 41 42 41 42 46 48 44 42 44 46 46 45 RH 30 25 39 49 56 64 58 34 18 14 24 34 41 51 50 31 20 21 30 44 54 62 Wind dir E E E W W S NW E NE NE NW W W W W NW W W W W W W Wind spd 6 5 5 3 2 2 2 4 8 6 5 5 3 2 2 4 10 11 9 6 5 3 Clouds SC B1 SC FW FW FW CL FW FW FW SC SC FW FW FW FW SC SC SC SC SC SC PoP 12hr 50 0 5 5 20 QPF 12hr 0.04 0 0 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S S S S Tstms S S S S Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 86 54 84 53 89 56 91 57 89 Temp 74 84 66 55 71 83 65 54 75 88 68 57 78 89 69 58 81 87 Dewpt 47 39 42 43 46 43 44 43 47 39 43 43 47 39 44 44 48 37 PWind dir NW NW N NW NE NW E W S Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW CL FW FW FW FW SC FW FW FW SC SC FW SC PoP 12hr 5 0 0 0 0 0 5 5 20 Rain shwrs S Tstms S $$ MTZ326-191000- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 204 PM MDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 53 97 54 93 53 Temp 86 85 75 65 59 54 64 84 94 95 79 69 60 55 65 83 91 89 76 67 59 54 Dewpt 45 44 46 47 43 42 43 40 34 32 35 35 34 34 38 40 39 39 44 48 46 46 RH 24 24 36 52 55 64 46 21 12 11 20 28 37 45 37 22 16 17 32 50 62 74 Wind dir NW NE S S SE S NW NW W E SE SE SE S SW W W NW N E S S Wind spd 5 5 6 8 6 5 2 2 4 5 8 10 6 5 2 4 6 10 8 5 3 2 Clouds FW SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC B1 SC FW FW PoP 12hr 20 0 0 5 20 QPF 12hr 0.01 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S S Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 50 85 49 88 51 89 53 89 Temp 76 84 62 51 76 83 62 50 76 87 64 52 79 86 64 54 81 85 Dewpt 46 41 45 44 48 44 46 43 45 38 44 42 45 40 46 43 46 41 PWind dir W E E E NE E NE SE SW Wind char LT GN LT GN LT GN LT GN LT Avg clouds FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC FW SC PoP 12hr 5 5 0 0 0 5 20 20 20 Rain shwrs S S S Tstms S S S $$ MTZ330-191000- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 204 PM MDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 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 86 43 85 43 Temp 81 80 67 55 45 40 54 80 85 84 70 57 48 43 57 81 84 82 70 59 49 43 Dewpt 34 32 33 32 29 29 32 28 23 23 27 25 24 25 29 34 33 35 37 39 39 38 RH 18 17 28 41 53 64 43 15 10 11 20 29 39 49 34 18 16 18 30 47 68 82 Wind dir SW SW S SE SE N N SW SW S S SE SE E S SW SW SW SW NE NE NE Wind spd 14 12 4 3 2 0 0 6 10 10 3 4 2 1 2 10 14 13 5 3 1 1 Wind gust 25 24 Clouds FW FW FW FW FW FW FW CL FW FW FW FW SC FW SC SC SC SC SC SC SC FW PoP 12hr 10 0 0 20 20 QPF 12hr 0 0 0 0.01 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S Tstms S Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 82 39 84 40 85 43 83 42 81 Temp 75 80 54 39 77 81 55 40 78 81 56 43 77 78 54 42 76 75 Dewpt 39 34 38 37 39 31 40 38 38 34 38 38 40 38 40 39 42 39 PWind dir NW N N NE NW NE S NE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW SC SC SC SC B1 B1 SC B1 B1 SC SC B1 PoP 12hr 5 5 0 0 5 10 30 30 40 Rain shwrs C C S C Tstms S S C $$ MTZ328-191000- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 204 PM MDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 50 92 52 89 50 Temp 84 84 70 61 54 51 61 81 90 90 75 65 57 53 63 81 88 86 71 61 54 50 Dewpt 45 45 45 43 40 38 40 40 35 31 30 31 33 33 38 41 41 40 43 45 43 42 RH 26 26 41 51 59 61 46 23 14 12 19 28 40 46 39 24 19 20 36 56 66 74 Wind dir SW S E S S S SW SW SW S S S S S SW W SW W N N W SW Wind spd 10 10 6 6 5 6 5 5 9 13 10 10 6 5 3 4 9 10 10 9 8 6 Clouds SC B1 SC FW FW FW CL CL FW FW FW FW FW SC FW FW SC B1 SC SC FW FW PoP 12hr 20 0 0 5 5 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 47 85 49 88 51 86 51 84 Temp 74 82 59 47 73 84 60 49 78 85 62 51 79 82 60 51 78 81 Dewpt 46 38 41 39 45 39 43 41 47 39 42 39 43 46 45 42 47 43 PWind dir NW N NE NE NW E W S W Wind char LT GN LT LT LT LT LT LT LT Avg clouds FW FW FW CL FW FW FW FW FW FW SC SC FW SC B1 SC FW B1 PoP 12hr 0 0 0 0 5 5 20 20 30 Rain shwrs S S C Tstms S S S $$ MTZ305-191000- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 204 PM MDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 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 59 95 62 93 56 Temp 86 89 76 68 63 60 69 85 93 93 81 72 66 63 71 86 92 89 76 67 62 57 Dewpt 47 49 51 52 52 51 52 54 53 51 54 55 54 53 55 55 51 49 51 52 51 52 RH 26 25 42 57 67 72 55 35 26 24 39 55 65 70 57 35 25 25 42 59 67 83 Wind dir SW SW E SE E E W W SW SW E SE N N NW NW NW NW NW W NW NW Wind spd 5 4 5 5 4 3 2 3 4 5 5 5 5 5 5 9 9 10 9 6 6 6 Clouds FW CL SC FW FW FW CL FW FW FW SC SC B1 SC FW FW FW FW SC SC SC SC PoP 12hr 5 0 20 0 20 QPF 12hr 0 0 0.02 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S Tstms S Heat index 81 Max heat 86 84 84 92 89 85 89 83 Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 81 51 79 51 82 53 85 55 86 Temp 73 79 60 52 71 78 59 51 74 81 61 53 76 83 64 56 78 85 Dewpt 50 46 47 45 43 43 45 43 45 47 46 44 47 48 48 47 50 46 PWind dir NW NE NE E E E E E SE Wind char GN LT GN GN GN GN GN GN LT Avg clouds FW FW FW FW FW FW CL FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 5 5 0 0 0 0 0 5 0 $$ MTZ314-191000- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 204 PM MDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 59 93 57 87 55 Temp 82 83 70 64 61 59 70 86 91 91 76 68 63 58 68 80 85 86 71 64 60 56 Dewpt 52 52 54 52 49 48 50 49 43 44 48 44 42 41 48 50 50 50 54 52 51 50 RH 35 34 57 65 65 67 49 28 19 20 37 42 46 53 49 35 30 29 55 65 72 80 Wind dir N NE SE SE SE SE SE W SW W SE SE S SW W NW NW N W W W W Wind spd 5 5 5 5 5 4 3 4 5 5 6 6 5 5 5 9 9 8 5 5 5 4 Wind gust 16 Clouds FW FW SC SC FW FW FW CL FW CL FW FW FW FW FW FW FW B1 B1 B1 B1 SC PoP 12hr 20 0 0 0 40 QPF 12hr 0.01 0 0 0 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C C C S Tstms S S C S Heat index 80 Max heat 83 81 84 89 85 80 85 81 Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 77 51 75 49 78 51 82 54 83 Temp 70 75 58 52 68 74 57 50 72 76 59 52 74 78 61 55 78 80 Dewpt 52 50 48 45 46 48 44 41 46 47 46 43 48 49 48 45 49 47 PWind dir NW E E E SE SE SE SE E Wind char LT LT LT GN LT GN LT GN LT Avg clouds SC SC FW FW SC FW FW FW FW FW FW SC FW FW SC SC SC FW PoP 12hr 20 10 5 5 0 5 5 20 10 Rain shwrs S S S Tstms S $$ http://www.weather.gov/greatfalls