Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
394 FOUS55 KTFX 181831 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 1231 PM MDT Fri Sep 18 2026 MTZ312-182200- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 1231 PM MDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 52 66 48 73 Temp 73 70 63 58 54 53 53 60 64 64 57 53 50 48 52 66 72 71 Dewpt 49 48 50 49 49 50 50 49 44 43 45 47 47 47 48 48 44 43 RH 43 45 62 72 83 89 89 67 48 46 64 80 89 96 86 52 37 36 Wind dir N NE NE NW N N N N E N SE S SW SW S S SE E Wind spd 9 10 8 5 4 3 4 5 8 6 5 4 3 3 3 2 3 5 Clouds SC B2 OV OV OV OV OV B2 OV OV B2 B1 B1 B1 SC FW FW FW PoP 12hr 10 40 30 5 0 QPF 12hr 0 0.23 0.06 0 0 Snow 12hr 00-00 00-00 00-00 Rain S S C S S S Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 79 51 78 51 79 51 79 Temp 54 48 71 75 57 51 71 75 57 51 71 75 57 52 71 76 Dewpt 45 42 47 41 41 40 42 41 42 42 43 40 41 41 43 42 PWind dir SE SW SW SW SE SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW CL FW FW SC FW FW SC FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 0 5 0 $$ MTZ303-182200- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 1231 PM MDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 70 47 67 45 73 Temp 70 68 57 53 50 48 51 61 66 65 55 51 46 45 49 65 72 71 Dewpt 45 43 45 45 45 45 45 46 43 41 41 42 41 43 43 46 44 44 RH 41 40 64 74 83 89 80 58 43 41 59 71 83 93 80 50 37 38 Wind dir N NE NE N N N NE SE SE SE SE S S S S S S SE Wind spd 8 9 6 4 3 3 3 8 10 11 10 6 5 3 3 8 9 11 Clouds FW B1 B1 B1 B1 B1 SC SC FW SC SC SC FW FW FW FW CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 45 75 47 72 47 73 47 72 Temp 52 45 66 72 53 48 65 70 53 48 66 70 53 48 65 70 Dewpt 44 42 47 41 40 39 42 42 41 40 41 40 40 39 43 43 PWind dir SE S SW W SW W SW SW Wind char GN LT GN LT LT GN LT LT Avg clouds FW FW SC CL FW FW SC SC FW SC FW FW FW SC SC SC PoP 12hr 0 0 0 0 0 0 0 5 $$ MTZ319-182200- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 1231 PM MDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 52 61 48 73 Temp 73 68 60 59 57 53 53 56 58 59 55 54 51 48 52 64 72 70 Dewpt 49 53 51 54 54 51 51 51 48 50 47 47 47 46 47 50 46 45 RH 43 59 72 83 90 93 93 83 69 72 74 77 86 93 83 60 39 41 Wind dir N N N W NW NW NW NW NW W SW W SW N N N E SE Wind spd 6 11 9 4 4 5 6 5 6 5 5 3 1 0 0 0 4 3 Clouds B1 OV OV OV OV OV OV OV OV OV B2 B1 B1 B1 SC FW FW FW PoP 12hr 40 100 100 30 0 QPF 12hr 0.04 1.01 0.54 0.06 0 Snow 12hr 00-00 00-00 00-00 Rain D D C S S Rain shwrs C L D D D L L Tstms S C C S S S S Obvis PF Flood A A A A A A A A Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 46 77 48 78 49 78 49 79 Temp 54 46 67 73 55 48 69 75 56 49 69 74 56 49 68 76 Dewpt 43 41 47 43 40 40 43 43 41 41 44 44 41 41 44 45 PWind dir S S SW SE SW SW SW SE Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW CL FW FW SC FW FW SC FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 0 5 0 $$ MTZ326-182200- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 1231 PM MDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 72 48 59 45 67 Temp 71 67 58 55 54 52 53 54 56 57 55 51 49 48 49 58 64 66 Dewpt 52 56 56 55 54 52 53 54 53 53 53 51 49 48 49 50 48 48 RH 51 68 93100100100100100 90 86 93100100100100 75 56 52 Wind dir W NE S SW S SW W NW W W SW SW SE N SW N N N Wind spd 5 8 6 3 1 3 3 4 5 3 2 1 1 0 1 0 0 0 Clouds B2 OV OV OV OV OV OV OV B2 OV B2 OV B2 B2 B2 B1 SC FW PoP 12hr 70 90 90 80 20 QPF 12hr 0.05 0.57 0.50 0.13 0 Snow 12hr 00-00 00-00 00-00 Rain D C C C S S Rain shwrs C L D D D D D D D Tstms C C S C S S S C C Obvis PF PF PF PF F F PF Flood A A A A A A A A Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 41 74 44 76 44 76 44 78 Temp 49 42 63 71 52 46 67 74 53 46 67 74 54 46 68 76 Dewpt 46 41 47 45 42 40 45 46 43 41 45 45 42 40 45 47 PWind dir SE SE SE SW SE SW SE SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW CL FW FW SC SC SC SC FW FW FW FW FW CL PoP 12hr 0 0 0 0 0 0 5 0 $$ MTZ330-182200- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 1231 PM MDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 39 54 36 62 Temp 61 55 47 45 43 41 43 51 53 51 44 41 39 39 42 56 61 59 Dewpt 48 48 47 45 43 41 43 46 41 42 43 41 39 39 42 46 42 42 RH 62 77100100100100100 83 64 71 96100100100100 69 49 53 Wind dir S S S S W S SW W SW W S W N N N N N N Wind spd 8 2 1 2 1 1 1 2 5 3 1 1 0 0 0 0 0 0 Clouds OV OV OV OV OV OV B2 B2 B1 B2 OV B2 OV OV B2 B1 B1 B1 PoP 12hr 90 80 80 50 20 QPF 12hr 0.18 0.36 0.15 0.07 0 Snow 12hr 00-00 00-00 00-00 Rain C C C C C S S S S Rain shwrs L D C C C C Tstms C C S S C S Obvis PF PF PF PF PF PF PF F F F Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 31 68 32 70 34 69 33 72 Temp 39 31 61 65 41 33 64 66 43 34 63 66 43 34 65 68 Dewpt 39 31 43 36 37 33 38 33 35 34 39 35 36 33 39 35 PWind dir N SW SW SW N SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC FW FW FW SC SC SC SC SC FW FW FW FW FW PoP 12hr 5 0 0 0 5 5 5 5 $$ MTZ328-182200- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 1231 PM MDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 67 47 58 44 67 Temp 66 63 54 52 51 49 51 53 56 56 51 50 47 45 48 58 65 66 Dewpt 50 53 51 51 51 49 51 51 50 52 49 49 47 45 48 50 46 46 RH 56 70 90 96100100100 93 80 86 93 96100100100 75 50 48 Wind dir NW NE W N S SE W N N NE E SE SW SW SW W NW N Wind spd 11 10 8 4 4 4 4 4 6 8 3 3 3 3 3 1 2 3 Clouds OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 SC SC FW FW PoP 12hr 90 100 90 40 0 QPF 12hr 0.14 0.48 0.21 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain D S S Rain shwrs D D D D D D D L C Tstms C C S C S S C C S Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 42 75 44 75 44 76 44 78 Temp 50 42 62 71 52 45 66 72 52 44 67 74 52 45 68 75 Dewpt 43 40 46 43 40 38 44 43 40 37 43 42 40 38 43 43 PWind dir SE SW S SW S SW S S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW CL FW SC SC FW SC SC FW FW FW FW FW CL PoP 12hr 0 0 0 0 0 0 0 0 $$ MTZ305-182200- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 1231 PM MDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 76 49 70 48 74 Temp 75 74 63 57 53 50 53 65 68 67 57 53 50 49 53 68 73 71 Dewpt 49 49 48 49 48 48 47 46 41 43 45 47 47 48 49 51 49 51 RH 40 41 58 75 83 93 80 50 37 42 64 80 89 96 86 54 43 49 Wind dir N NE E E E NE E E E E SE E SE E SE SE E E Wind spd 6 9 10 9 8 6 8 11 10 10 8 6 4 4 3 4 5 11 Clouds SC B1 B2 B2 B2 OV B2 B2 B2 OV B2 B1 B1 B1 SC FW SC FW PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 47 79 49 79 49 79 49 80 Temp 53 48 70 75 57 51 71 75 56 51 71 76 57 51 72 76 Dewpt 51 48 53 48 49 46 47 46 45 44 46 45 44 43 45 46 PWind dir SE SE S SW SE SW S SW Wind char GN LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW FW FW FW FW SC FW FW FW FW FW PoP 12hr 0 0 0 0 0 0 0 0 $$ MTZ314-182200- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 1231 PM MDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 73 50 58 48 65 Temp 72 70 61 57 54 52 51 53 55 56 53 52 51 49 52 58 63 64 Dewpt 51 51 51 51 51 51 50 50 48 47 49 49 50 49 51 52 50 50 RH 48 51 70 80 90 96 96 89 77 72 86 89 96100 96 80 62 60 Wind dir N N NE SE SE E N N N NE NE S NW N NE E E E Wind spd 8 6 4 4 3 4 4 6 6 6 4 3 2 2 2 2 3 5 Clouds B1 B2 OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 B1 SC PoP 12hr 10 70 70 80 40 QPF 12hr 0.01 0.21 0.73 0.40 0.01 Snow 12hr 00-00 00-00 00-00 Rain C C L L L L L L L C C C C Rain shwrs C L L Tstms S S S Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 45 75 49 77 49 77 49 79 Temp 51 45 66 71 55 50 71 73 55 51 71 73 56 51 73 74 Dewpt 49 44 46 45 46 40 42 44 43 41 43 44 42 40 42 44 PWind dir SE S S SW SE SW SE S Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC FW FW FW FW SC FW SC FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 5 0 0 0 $$ http://www.weather.gov/greatfalls