Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
667 FOUS55 KTFX 121021 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 421 AM MDT Sun Oct 12 2025 MTZ312-122215- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 421 AM MDT Sun Oct 12 2025 Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 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 38 26 36 25 41 Temp 36 35 36 38 37 34 30 28 28 28 31 33 34 32 29 28 28 29 35 39 40 Dewpt 30 31 29 27 25 28 28 26 25 26 27 26 27 27 25 24 25 26 28 29 31 RH 79 85 75 64 61 78 92 92 88 92 85 75 75 81 85 85 88 88 75 67 70 Wind dir NW NW NW N NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE Wind spd 19 13 10 9 10 13 18 19 19 19 16 16 13 12 11 10 6 3 3 4 5 Clouds OV OV OV B2 OV OV OV OV OV OV OV OV B2 OV B2 B2 B2 B2 B1 B1 B2 PoP 12hr 80 90 80 40 20 QPF 12hr 0.06 0.15 0.03 0 0 Snow 12hr 00-00 2 T Rain S S Snow D D C S C D D D D D C C C C S S S S S Winter Weath Y Y Y Y Y Y Date Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 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 30 43 33 50 35 53 30 51 Temp 34 34 38 41 37 37 43 45 38 39 48 47 38 34 44 47 Dewpt 32 32 34 36 35 34 36 34 30 30 32 33 30 30 31 28 PWind dir NW W SW W SW SW W SW Wind char LT LT LT GN GN BZ GN GN Avg clouds B2 B2 OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC PoP 12hr 30 60 60 60 30 30 30 30 Rain S C L L C L L C C C C C C C C S Snow C $$ MTZ303-122215- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 421 AM MDT Sun Oct 12 2025 Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 35 20 32 22 39 Temp 30 31 33 34 32 27 25 24 23 24 28 30 30 26 26 26 25 26 32 37 38 Dewpt 25 26 25 23 23 23 21 19 20 22 23 22 23 23 22 22 22 24 27 28 29 RH 81 81 72 64 69 85 84 81 88 92 81 72 75 88 85 85 88 92 81 70 70 Wind dir N N N N N NE NE NE NE NE NE NE NE E E E E E E E E Wind spd 21 19 17 14 13 13 14 13 12 12 12 11 10 9 8 5 5 4 6 5 4 Wind gust 32 29 27 25 Clouds OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 B2 PoP 12hr 80 80 80 50 20 QPF 12hr 0.02 0.04 0.04 0.01 0 Snow 12hr T 1 1 Snow C D C C C L L L D D C C C C S S Date Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 26 45 31 50 33 52 28 49 Temp 30 29 37 42 35 34 45 46 37 36 46 44 33 30 43 45 Dewpt 28 27 32 36 33 30 32 32 29 29 32 31 28 26 29 28 PWind dir NW W W W W W W W Wind char LT LT GN GN BZ BZ GN GN Avg clouds B2 B2 OV B2 B1 B2 B1 SC SC B1 B2 B1 B1 B1 B1 SC PoP 12hr 20 30 40 40 20 20 30 30 Rain S C C C C C S S S S C S C S Snow S C S C $$ MTZ319-122215- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 421 AM MDT Sun Oct 12 2025 Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 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 44 26 38 26 43 Temp 40 38 37 41 39 36 35 32 28 27 30 35 35 34 33 31 29 29 34 41 41 Dewpt 32 34 32 32 30 29 30 27 25 25 25 27 25 25 25 25 27 27 29 32 31 RH 73 85 82 70 70 75 82 81 88 92 81 72 66 69 72 78 92 92 82 70 67 Wind dir W W NW N N NW NW NW NW N N N N N N N N N NE N N Wind spd 5 6 6 8 10 10 11 10 9 10 10 11 11 9 5 3 2 2 3 5 5 Wind gust 21 20 Clouds OV OV B1 OV OV OV OV OV OV OV B2 OV B2 OV OV OV OV OV B1 B1 B2 PoP 12hr 80 90 70 30 40 QPF 12hr 0.12 0.22 0.03 0 0 Snow 12hr 00-00 1 T Rain L D C L D S S C Snow D C D D D L L L C C S S C C C C Date Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 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 30 45 33 49 33 53 32 52 Temp 36 32 35 42 41 35 40 45 41 36 43 48 42 34 42 48 Dewpt 30 30 34 35 34 33 33 32 29 30 32 31 30 29 29 27 PWind dir NW NW W W SW SW W W Wind char LT LT LT LT GN GN GN GN Avg clouds B2 B2 OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC PoP 12hr 40 70 60 70 30 30 40 40 Rain C C L L C L L C C C C C C C C S Snow L C $$ MTZ326-122215- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 421 AM MDT Sun Oct 12 2025 Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 50 27 43 24 50 Temp 36 39 44 48 47 42 38 36 31 31 36 40 38 34 32 31 28 30 39 47 46 Dewpt 34 35 34 32 33 35 35 33 30 28 28 27 25 27 29 29 27 29 31 34 34 RH 92 85 68 54 58 76 89 89 96 88 72 59 59 75 88 92 96 96 73 60 63 Wind dir SW SW W W NW SW E N W E E E E E E E E E E NE E Wind spd 10 10 9 9 5 8 9 10 9 10 9 11 13 13 11 9 5 3 2 3 5 Wind gust 21 24 Clouds OV OV B1 B1 B2 OV OV OV B1 SC B1 B1 B1 B2 B2 B1 B2 B2 B1 SC B2 PoP 12hr 50 50 20 20 30 QPF 12hr 0.03 0.05 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain C C S C C C C S C C S S C Snow S S S S C Date Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 29 47 31 48 30 53 27 50 Temp 37 34 40 43 38 34 40 45 38 33 44 48 37 30 40 46 Dewpt 36 34 37 36 37 34 36 33 32 30 31 31 32 28 29 28 PWind dir E W SW W SW SW SW W Wind char LT LT LT LT GN GN GN LT Avg clouds B2 B2 B2 B2 B2 B2 OV B1 B1 B1 B1 B1 B2 B1 B1 SC PoP 12hr 50 80 60 70 40 30 40 40 Rain C C D L C L L C C C C C C C C S Snow C S $$ MTZ330-122215- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 421 AM MDT Sun Oct 12 2025 Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 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 39 17 50 25 52 Temp 27 30 34 37 36 32 29 24 21 25 42 50 47 36 31 29 29 34 46 50 47 Dewpt 27 30 29 29 29 28 27 24 21 24 28 27 31 29 29 29 29 33 39 35 37 RH 100100 82 72 75 85 92100100 96 57 41 53 75 92100100 96 76 56 68 Wind dir SW SW SW SW S S SE E NE E E S SE E E E E E S S S Wind spd 9 13 13 17 16 14 10 4 2 2 5 9 5 10 13 8 3 3 6 10 5 Wind gust 27 26 28 Clouds OV OV B1 B2 B2 B2 B2 SC B2 B2 SC SC SC SC B1 B1 B2 B2 B1 B2 B1 PoP 12hr 50 30 10 40 50 QPF 12hr 0.03 0 0 0.01 0.12 Snow 12hr T 00-00 00-00 Rain C C C C C Rain shwrs C C Snow C C C C C C C Tstms S S Winter Weath Y Y Date Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 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 28 44 25 40 22 42 18 42 Temp 36 32 40 41 32 29 36 39 31 26 35 39 28 21 36 38 Dewpt 35 32 37 33 32 29 31 30 29 26 29 29 26 21 27 24 PWind dir E S SW SW SW SW SW SW Wind char LT LT LT LT GN GN GN LT Avg clouds B2 B2 OV B2 B2 OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 70 90 80 80 60 40 50 40 Rain C L D L D D L L C C Rain shwrs C D Snow L L D D L L C C C C C C S Tstms S S $$ MTZ328-122215- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 421 AM MDT Sun Oct 12 2025 Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 51 29 46 26 52 Temp 32 36 45 50 45 40 37 34 32 32 40 45 41 34 30 28 28 29 40 49 47 Dewpt 27 31 30 29 32 33 32 32 31 31 32 31 32 31 28 26 27 29 32 35 38 RH 81 82 55 44 60 76 82 92 96 96 73 58 70 89 92 92 96100 73 58 71 Wind dir SW SW SW SW S S SE NE NE NE NE NE NE NE NE NE NE NE NE E E Wind spd 13 14 13 13 12 11 10 10 10 13 12 13 13 13 12 10 8 6 4 5 6 Wind gust 24 Clouds B2 B1 SC B2 OV OV OV OV OV B1 B1 B1 B1 B2 B1 B2 B2 B2 B1 B1 B2 PoP 12hr 20 40 5 30 30 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain S S S C C C S C C C C C C C Snow S S C S C C C Date Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 32 47 30 49 28 51 25 50 Temp 36 35 40 43 35 33 41 45 32 30 44 47 32 27 41 46 Dewpt 36 35 39 39 35 32 34 34 29 27 31 32 29 24 27 28 PWind dir NE S SW SW SW SW SW SW Wind char LT LT LT GN GN GN GN GN Avg clouds B2 B2 OV B2 B2 B2 B2 B1 SC B1 B1 SC B1 B1 SC SC PoP 12hr 50 80 60 60 30 20 30 20 Rain C C D L C L L C C S S S C C S Snow S S C S S $$ MTZ305-122215- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 421 AM MDT Sun Oct 12 2025 Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 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 42 24 41 23 49 Temp 33 36 39 41 38 32 30 29 28 29 35 40 39 32 29 28 27 29 40 47 46 Dewpt 28 31 29 27 26 25 24 23 22 24 24 24 24 25 25 25 24 26 30 32 35 RH 82 82 67 57 62 75 78 78 78 81 64 52 54 75 85 88 88 88 67 56 65 Wind dir NW NW NW NW N N NE NE NE NE E E E E E E E E E E E Wind spd 21 21 20 18 13 12 10 9 9 10 11 12 12 11 11 12 11 11 11 10 9 Wind gust 35 32 31 28 Clouds OV OV OV B2 B1 B2 B2 OV OV OV B2 B2 B2 B1 B1 B1 B2 B2 B1 B1 B2 PoP 12hr 50 30 30 5 10 QPF 12hr 0.03 0 0.01 0 0 Snow 12hr 00-00 00-00 T Rain C C S Snow C C S C C C Date Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 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 48 32 52 32 56 28 54 Temp 37 35 42 45 39 37 45 47 38 36 49 48 37 32 46 49 Dewpt 36 35 39 40 39 37 38 35 35 33 34 33 33 29 32 29 PWind dir E NE W W SW W W W Wind char LT LT LT GN GN BZ GN GN Avg clouds B2 B2 OV B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC PoP 12hr 30 60 60 60 40 30 20 20 Rain S C C L C L L C C C C C S S S Snow S $$ MTZ314-122215- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 421 AM MDT Sun Oct 12 2025 Date Sun 10/12/25 Mon 10/13/25 Tue 10/14/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 38 23 37 23 47 Temp 33 33 35 38 36 31 30 27 26 27 31 35 34 29 29 27 26 30 40 45 44 Dewpt 30 33 30 28 27 27 29 26 24 25 25 26 26 26 26 24 25 28 32 34 36 RH 89100 82 67 69 85 96 96 92 92 78 69 72 88 88 88 96 92 73 65 73 Wind dir W NW NW NW N N E E E E E E E E E E E E E E E Wind spd 16 18 18 13 10 6 5 9 10 11 11 12 13 11 10 8 5 4 4 6 5 Wind gust 27 Clouds OV OV OV SC B1 OV OV OV OV B2 B2 B2 B2 B2 B1 B1 B2 B2 B1 B1 B1 PoP 12hr 60 80 40 20 20 QPF 12hr 0.03 0.05 0 0 0 Snow 12hr 00-00 T 00-00 Rain S L S S S S Snow L C C D C C C S S S S S S Date Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 Sat 10/18/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 30 45 31 46 31 53 28 48 Temp 36 35 40 41 37 36 41 42 37 36 47 45 37 33 42 43 Dewpt 35 35 39 38 37 35 36 33 31 28 32 32 33 30 30 27 PWind dir SE NW W W W W W W Wind char LT LT LT GN GN GN GN GN Avg clouds B1 B2 B2 B2 B2 B2 OV B2 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 40 70 70 70 50 30 40 40 Rain S C L L L L L L C C C C C C C C Snow C C $$ http://www.weather.gov/greatfalls