Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
969 FOUS55 KTFX 152017 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 217 PM MDT Fri Aug 15 2025 MTZ312-161000- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 217 PM MDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 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 90 59 86 57 Temp 84 87 75 65 59 57 67 82 88 88 76 67 62 59 67 78 84 82 72 65 60 57 Dewpt 40 41 44 45 43 43 44 42 40 43 49 52 51 50 51 47 48 49 51 52 51 50 RH 21 20 33 48 55 59 43 24 19 21 39 59 67 72 56 33 29 32 48 63 72 77 Wind dir W W N NW W SW SW S W W NW NE SW SW S W W SW S S SW SW Wind spd 10 12 6 3 5 5 4 5 11 13 11 5 4 4 4 5 8 9 8 5 5 4 Wind gust 20 21 25 Clouds FW FW FW FW FW FW FW FW FW SC B1 SC SC SC SC SC SC B2 B1 B1 SC SC PoP 12hr 5 5 5 20 20 QPF 12hr 0 0 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 58 95 61 91 57 82 56 81 Temp 79 87 67 59 84 94 70 61 83 90 68 58 75 82 65 56 72 79 Dewpt 50 46 50 47 47 39 46 46 46 42 45 45 48 46 49 49 51 48 PWind dir SW SE SW NE W N NW NE NE Wind char LT LT LT LT LT LT LT GN LT Avg clouds FW FW FW FW FW FW FW SC FW FW FW FW FW FW FW SC SC SC PoP 12hr 5 5 0 0 0 5 5 5 5 $$ MTZ303-161000- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 217 PM MDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 54 82 54 80 51 Temp 74 78 67 60 56 54 66 76 79 77 67 61 57 55 62 72 78 78 67 59 53 51 Dewpt 40 43 45 45 44 43 46 48 48 50 50 50 49 47 48 47 45 42 44 44 44 43 RH 29 29 45 58 64 66 48 37 34 39 54 67 75 74 60 41 31 28 43 57 71 74 Wind dir W W W W W SW SW SW SW W W W W W W W W W W W W W Wind spd 14 16 10 6 8 9 10 16 19 20 16 10 9 8 10 11 13 13 8 5 5 5 Wind gust 27 27 31 34 34 26 24 Clouds B2 B2 SC SC SC SC FW B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC PoP 12hr 5 10 5 10 10 QPF 12hr 0 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 54 88 57 86 52 76 51 75 Temp 75 81 61 54 81 86 64 57 80 84 61 52 68 75 58 51 66 73 Dewpt 46 44 47 45 48 42 47 46 45 42 45 46 49 46 47 45 48 46 PWind dir SW W SW W NW NW N NE E Wind char LT LT LT LT GN GN GN GN GN Avg clouds SC SC FW FW FW FW FW SC FW FW FW FW FW FW FW SC SC SC PoP 12hr 5 0 0 5 5 5 0 5 5 $$ MTZ319-161000- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 217 PM MDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 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 90 57 86 56 Temp 86 89 77 70 63 57 64 79 88 85 75 68 62 58 63 77 83 80 71 65 60 57 Dewpt 39 38 39 40 39 40 43 43 39 42 48 48 48 47 49 50 48 50 50 49 49 49 RH 19 17 25 33 41 53 46 28 18 22 38 49 60 67 60 39 30 35 47 56 67 75 Wind dir W NW NW W W W E E N W W W SW SW W N W W SW S SW S Wind spd 11 11 6 4 3 2 1 6 11 12 10 5 3 2 2 4 8 9 5 5 3 2 Wind gust 23 21 18 26 24 Clouds FW FW FW CL FW FW CL FW SC B2 B2 SC SC SC SC B1 B1 B2 B2 SC SC SC PoP 12hr 5 20 20 30 20 QPF 12hr 0 0 0 0.03 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S S Tstms S S S S Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 57 93 59 93 59 87 56 85 Temp 77 86 68 58 82 91 71 60 82 92 71 60 77 86 68 57 73 82 Dewpt 51 44 45 44 48 37 41 42 45 38 42 43 46 43 46 46 50 44 PWind dir S W SE W W W NW NW N Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC FW SC FW CL FW SC FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 10 5 0 0 0 0 5 5 5 $$ MTZ326-161000- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 217 PM MDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 52 91 52 87 50 Temp 89 89 77 66 58 53 64 81 88 85 72 64 58 53 62 77 84 81 69 60 55 51 Dewpt 34 34 37 41 39 39 41 39 38 42 46 48 46 44 46 46 43 46 49 49 47 44 RH 14 14 24 40 49 59 43 22 17 22 39 56 64 71 56 33 24 29 49 67 74 77 Wind dir NW S E S S S SW NW SE SE S SE SE SE S W W NW NE SE SE SE Wind spd 11 11 9 6 5 4 2 4 10 12 10 5 4 4 2 3 5 9 5 5 5 4 Wind gust 21 20 23 Clouds FW SC SC FW FW FW FW SC B1 B1 B1 SC FW SC SC B1 B1 B1 B1 SC FW FW PoP 12hr 10 50 10 30 30 QPF 12hr 0 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C Tstms S S C S Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 53 95 54 94 54 90 52 88 Temp 78 87 64 53 83 92 67 55 85 92 66 54 82 88 64 53 76 84 Dewpt 46 39 42 40 40 33 38 36 39 34 42 42 45 39 46 45 47 43 PWind dir SW E SW E SW E W E NE Wind char LT LT LT GN LT LT LT GN LT Avg clouds FW FW SC FW CL FW FW CL FW FW SC FW FW FW SC FW FW FW PoP 12hr 5 5 0 0 0 5 5 5 10 $$ MTZ330-161000- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 217 PM MDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 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 81 41 79 40 Temp 81 80 69 58 47 43 56 75 80 76 63 54 45 41 54 74 77 75 64 53 44 40 Dewpt 29 27 33 36 35 36 38 39 36 37 41 43 40 37 39 39 34 37 39 39 38 36 RH 15 14 26 44 63 76 51 27 20 24 44 66 82 85 57 28 21 25 40 59 79 85 Wind dir SW SW S S E SE N SW SW W SE E E E S SW SW SW SW E E E Wind spd 17 14 12 5 2 1 2 14 16 16 8 2 2 1 2 13 13 12 5 2 2 1 Wind gust 27 27 24 Clouds FW FW SC FW SC SC B1 B1 SC B1 B2 SC SC SC SC B1 B1 B1 SC SC SC SC PoP 12hr 5 40 30 30 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S Tstms S S S Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 40 86 42 87 42 85 42 84 Temp 76 80 55 40 79 84 56 42 83 85 57 42 80 83 56 42 77 80 Dewpt 36 28 32 30 31 24 28 28 30 26 32 31 34 29 36 37 37 33 PWind dir S S S S S S W N NW Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW CL FW FW FW FW FW FW FW FW FW SC SC SC SC PoP 12hr 5 0 0 0 5 5 5 5 10 $$ MTZ328-161000- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 217 PM MDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 50 87 49 83 48 Temp 87 86 72 62 55 51 60 79 84 81 67 60 53 50 59 76 80 75 63 57 51 48 Dewpt 30 32 36 36 37 35 37 37 40 46 48 47 45 42 46 46 46 50 50 49 45 43 RH 13 14 27 38 51 54 42 22 21 29 50 62 74 74 62 34 30 41 62 75 80 83 Wind dir W SW S SW S S SW SW SE S E S S S SW SW SW W E SE S S Wind spd 13 12 9 8 6 5 5 9 14 14 10 5 5 5 4 4 10 10 5 5 5 5 Wind gust 25 27 25 Clouds FW SC SC FW FW FW FW FW B1 B2 B1 SC SC SC SC B1 B1 B2 B1 SC SC SC PoP 12hr 10 40 10 40 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S Tstms S S S S Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 50 90 51 91 51 89 49 86 Temp 77 84 60 50 81 89 63 51 83 89 62 51 80 86 60 49 76 84 Dewpt 46 39 40 38 40 32 32 32 38 33 39 38 42 36 41 41 46 41 PWind dir SW S SW S SW W W N NE Wind char LT GN LT GN LT GN LT GN LT Avg clouds FW FW SC FW CL FW SC FW CL FW SC FW FW FW SC FW FW FW PoP 12hr 5 0 0 0 0 0 0 0 5 $$ MTZ305-161000- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 217 PM MDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 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 59 86 58 Temp 83 83 73 65 59 57 66 82 87 87 76 68 63 59 67 79 84 84 73 65 61 58 Dewpt 52 52 56 56 53 53 53 54 50 52 56 57 55 53 53 52 51 52 54 54 54 54 RH 34 34 55 73 80 86 63 38 28 30 50 68 75 80 61 39 32 33 51 68 78 86 Wind dir SW SW E E E W W W W NE N W SW SW W W W W S S S S Wind spd 9 6 6 5 3 2 2 5 8 9 8 5 4 4 5 6 6 8 5 5 4 3 Clouds SC SC SC SC FW FW FW FW FW SC SC SC SC SC SC SC SC SC B1 B1 SC SC PoP 12hr 20 5 10 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 89 58 93 61 91 57 83 54 80 Temp 81 86 67 59 84 91 70 62 84 88 66 58 77 80 62 55 71 77 Dewpt 56 53 55 54 56 52 55 54 56 51 53 53 57 53 53 51 51 49 PWind dir SW SE S E NW NE N NE E Wind char LT LT LT LT LT LT GN GN GN Avg clouds SC FW FW FW FW FW FW SC FW FW FW SC FW FW FW SC SC SC PoP 12hr 10 5 0 5 5 10 5 20 10 Rain shwrs S $$ MTZ314-161000- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 217 PM MDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 55 87 55 83 55 Temp 81 81 69 63 59 56 66 79 85 81 68 63 58 56 65 76 81 76 66 61 57 56 Dewpt 50 50 55 54 50 48 50 50 48 52 54 54 51 49 52 53 53 55 56 55 52 50 RH 34 34 61 72 72 74 56 36 28 37 61 72 77 77 63 45 38 48 70 81 83 80 Wind dir E E E SE SE SW W NW N E S S SW SW W N N SE SW S S S Wind spd 6 6 6 5 4 3 2 5 8 8 6 4 3 3 3 4 5 6 5 4 3 3 Wind gust 18 17 18 Clouds FW FW FW FW FW FW CL FW FW B1 B2 B1 B1 SC FW SC SC B2 B2 B1 B1 SC PoP 12hr 5 40 20 20 40 QPF 12hr 0 0.01 0.01 0 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C Tstms S S C S Heat index 81 81 Max heat 81 84 81 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 57 90 60 88 57 80 53 76 Temp 79 82 63 58 84 89 68 61 83 85 65 58 76 77 60 54 69 72 Dewpt 53 52 52 48 49 45 49 44 50 47 51 48 52 52 51 49 53 52 PWind dir S SE S SE W E N E E Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW SC FW CL CL FW FW FW FW FW SC FW FW SC SC SC SC PoP 12hr 20 10 0 5 0 10 10 20 20 Rain shwrs S S S S Tstms S S $$ http://www.weather.gov/greatfalls