Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
252 FOUS55 KTFX 152333 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 433 PM MST Mon Dec 15 2025 MTZ312-161100- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 433 PM MST Mon Dec 15 2025 Date Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 Thu MST 3hrly 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 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 42 52 40 50 25 Temp 60 56 56 51 44 44 49 50 47 45 44 45 49 48 44 39 36 32 31 29 30 Dewpt 40 38 38 32 24 25 28 28 30 29 28 26 33 32 21 14 13 13 14 14 15 RH 47 51 51 48 45 47 44 42 51 53 53 47 54 54 39 35 38 45 49 53 53 Wind dir SW SW SW W W W W W SW SW SW SW SW SW W W W W W SW SW Wind spd 29 34 39 42 40 31 27 26 20 21 21 27 36 41 46 42 34 25 18 16 16 Wind gust 44 50 58 64 56 44 39 40 32 33 33 39 50 57 62 60 51 37 Clouds B2 FW FW FW FW FW FW SC SC SC SC B1 B2 B2 FW SC SC SC FW SC B1 PoP 12hr 5 5 20 60 5 QPF 12hr 0 0 0 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain S S L L High Wind W W W W W W W W W W W W W Date 12/18/25 Fri 12/19/25 Sat 12/20/25 Sun 12/21/25 Mon 12/22/25 MST 6hrly 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 45 36 47 25 40 24 38 16 33 Temp 37 39 45 46 43 37 33 31 36 34 32 30 33 29 26 22 25 27 Dewpt 18 22 30 32 28 24 21 17 18 15 17 16 15 13 14 12 14 15 PWind dir SW SW SW W SW SW SW SW SW Wind char BZ WY WY BZ BZ GN GN GN GN Avg clouds B1 B2 B2 B1 B1 B1 SC SC SC FW SC SC SC SC B1 B1 B1 B1 PoP 12hr 10 40 40 20 10 10 10 20 20 Rain S C C Snow S C C C S S S S S $$ MTZ303-161100- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 433 PM MST Mon Dec 15 2025 Date Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 Thu MST 3hrly 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 35 45 33 45 18 Temp 53 51 49 42 36 38 43 45 40 38 36 38 41 40 37 34 28 24 22 23 24 Dewpt 28 36 36 27 22 23 26 28 30 30 28 29 32 28 20 15 12 10 9 12 13 RH 38 56 61 55 56 54 51 51 67 73 72 70 70 62 50 45 50 54 57 62 62 Wind dir W SW SW W W W W W SW SW SW SW SW SW W W W NW W SW W Wind spd 44 44 41 44 40 32 28 27 20 21 21 24 28 40 50 49 34 24 14 14 13 Wind gust 67 64 65 67 58 49 43 43 33 34 35 39 44 62 71 67 51 36 25 Clouds FW FW FW FW FW FW FW SC B1 SC B1 B1 B1 B1 SC SC SC SC SC SC SC PoP 12hr 10 10 40 50 5 QPF 12hr 0 0 0.01 0.06 0 Snow 12hr 00-00 00-00 00-00 Rain S S C C C C Snow C High Wind W W W W W W W W W W W W Date 12/18/25 Fri 12/19/25 Sat 12/20/25 Sun 12/21/25 Mon 12/22/25 MST 6hrly 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 38 26 39 13 34 13 27 5 26 Temp 31 33 36 36 32 26 20 19 29 28 25 21 19 20 13 8 14 19 Dewpt 18 21 26 24 19 17 12 11 16 16 15 12 8 10 6 1 5 11 PWind dir SW SW W W W W W SW SW Wind char BZ BZ BZ GN BZ BZ GN GN GN Avg clouds B1 B2 B2 B1 B1 SC SC SC SC SC SC SC SC SC B1 B1 B2 B1 PoP 12hr 5 40 20 20 10 10 10 20 20 Rain C Snow C C S S S S S $$ MTZ319-161100- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 433 PM MST Mon Dec 15 2025 Date Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 Thu MST 3hrly 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 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 38 52 36 48 27 Temp 47 47 46 46 40 43 47 50 47 45 41 42 44 43 40 37 35 34 34 34 31 Dewpt 32 33 33 32 28 30 32 32 30 29 25 27 31 32 24 17 16 16 18 18 17 RH 56 58 60 58 62 60 56 50 51 53 52 55 60 65 52 44 45 47 51 51 56 Wind dir S S SW W W W W W SW SW SW S S SW W W W W W W SW Wind spd 18 19 20 21 20 14 14 17 13 14 14 17 20 25 31 32 29 23 18 12 9 Wind gust 35 36 41 47 39 29 29 34 26 28 29 32 40 47 52 52 50 42 33 24 Clouds B1 FW SC SC SC SC FW SC FW SC B1 B1 OV OV SC SC SC SC SC B1 B2 PoP 12hr 20 20 30 90 5 QPF 12hr 0.01 0 0 0.12 0 Snow 12hr 00-00 00-00 00-00 Rain S S C C D D Snow S S S High Wind W W W W W W W Date 12/18/25 Fri 12/19/25 Sat 12/20/25 Sun 12/21/25 Mon 12/22/25 MST 6hrly 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 41 34 45 25 38 23 38 23 40 Temp 33 38 41 41 40 39 34 31 32 34 30 28 31 33 31 30 32 37 Dewpt 19 24 31 31 30 25 22 20 19 16 17 17 19 19 21 22 24 25 PWind dir S S SW W W SW SW S SW Wind char GN GN GN GN GN GN LT LT LT Avg clouds B2 B2 B2 B2 B2 B1 B1 B1 SC SC SC SC SC SC B1 B2 B2 B1 PoP 12hr 30 70 60 40 20 20 20 30 30 Rain L L L C S Snow C L L C C S S S S S S S C C C $$ MTZ326-161100- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 433 PM MST Mon Dec 15 2025 Date Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 Thu MST 3hrly 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 36 55 36 51 23 Temp 51 47 45 44 39 42 50 53 48 45 40 41 44 46 45 40 36 34 31 30 27 Dewpt 27 30 30 29 26 31 35 32 28 28 25 26 29 32 29 17 13 14 15 15 14 RH 39 51 55 55 59 65 56 44 46 51 55 55 55 58 53 39 38 43 51 53 57 Wind dir SW S S SW W W W W W SW S S S SW W W W W W W SW Wind spd 14 16 16 16 13 10 12 14 12 12 12 13 17 20 27 29 26 18 13 10 8 Wind gust 29 28 28 34 25 21 27 35 23 24 32 40 50 54 47 35 25 Clouds B2 B1 SC B1 B2 B2 B1 SC SC B1 B1 B2 OV OV B1 B1 B1 SC B1 B1 B1 PoP 12hr 10 20 5 90 0 QPF 12hr 0 0 0 0.09 0 Snow 12hr 00-00 00-00 00-00 Rain S D D Snow C C High Wind W W W W W W W Date 12/18/25 Fri 12/19/25 Sat 12/20/25 Sun 12/21/25 Mon 12/22/25 MST 6hrly 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 41 32 49 23 39 20 40 25 45 Temp 32 38 39 43 46 43 35 31 33 33 27 25 32 35 33 32 37 39 Dewpt 17 23 29 32 31 27 26 22 21 17 18 17 21 22 25 26 28 27 PWind dir SW S SW W SW SW S S SW Wind char GN GN GN GN LT LT LT LT LT Avg clouds B2 OV OV B2 OV B2 B2 B2 B1 SC SC SC B1 SC B1 B2 B2 B1 PoP 12hr 30 50 60 40 30 20 20 20 40 Rain C C L C C S C C Snow C C C S C C C C S S S S S S S C C $$ MTZ330-161100- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 433 PM MST Mon Dec 15 2025 Date Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 Thu MST 3hrly 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 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 24 40 30 39 13 Temp 39 31 29 27 25 28 37 40 38 34 33 32 33 34 37 33 28 23 19 16 14 Dewpt 21 20 20 20 19 23 31 32 32 30 29 29 30 31 32 19 12 10 9 9 8 RH 48 63 69 74 78 81 79 73 79 85 85 88 89 89 82 56 50 57 64 73 76 Wind dir SW SW S SW SW SW SW SW SW SW SW SW SW SW SW W W W W SW SW Wind spd 10 11 11 10 8 6 10 13 12 13 14 16 20 26 28 27 23 14 9 5 3 Wind gust 24 25 25 24 21 20 24 28 25 28 29 31 39 49 50 44 39 33 20 Clouds B2 B2 FW B1 B2 OV B2 B1 B1 B2 B2 B2 OV OV B2 B2 SC SC SC SC B2 PoP 12hr 10 30 50 100 10 QPF 12hr 0 0 0.03 0.25 0 Snow 12hr 00-00 00-00 00-00 Rain C C D D Snow S C S S C D D L L C Obvis BS High Wind W W W W W W W Date 12/18/25 Fri 12/19/25 Sat 12/20/25 Sun 12/21/25 Mon 12/22/25 MST 6hrly 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 31 24 38 20 33 18 34 23 37 Temp 22 28 30 33 35 35 30 24 28 28 21 20 28 32 28 26 32 33 Dewpt 16 22 26 30 29 28 25 21 21 17 17 17 23 25 25 25 27 25 PWind dir SW SW SW SW SW SW SW SW SW Wind char GN BZ BZ GN GN GN GN GN GN Avg clouds B2 OV OV B2 OV B2 B2 B2 B2 B1 B1 B1 B2 B2 B1 B2 B2 B2 PoP 12hr 90 90 80 70 50 40 50 50 60 Rain L D Snow C D D L D D L C C C C C C C C C L L $$ MTZ328-161100- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 433 PM MST Mon Dec 15 2025 Date Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 Thu MST 3hrly 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 37 54 36 47 22 Temp 50 45 43 42 39 39 49 52 46 42 38 40 43 44 41 36 31 29 28 26 24 Dewpt 28 30 30 30 29 31 34 30 27 25 24 26 30 32 26 15 12 12 12 11 12 RH 42 55 60 62 67 73 56 43 47 50 57 57 60 62 55 42 45 48 50 52 60 Wind dir SW S S SW SW SW SW SW SW S S S S SW W W W W W SW S Wind spd 14 18 20 19 17 13 14 19 13 14 16 18 23 27 34 35 25 19 13 10 9 Wind gust 25 33 35 31 24 29 34 24 26 35 44 50 50 41 33 24 Clouds B2 B1 SC SC SC B1 FW FW SC B1 SC B1 OV OV B1 B1 SC SC SC B1 B2 PoP 12hr 10 10 10 90 0 QPF 12hr 0 0 0 0.09 0 Snow 12hr 00-00 00-00 00-00 Rain D D Snow S C C High Wind W W W W W W W Date 12/18/25 Fri 12/19/25 Sat 12/20/25 Sun 12/21/25 Mon 12/22/25 MST 6hrly 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 39 32 49 23 38 19 39 27 44 Temp 32 36 37 41 46 43 36 29 33 31 25 23 32 34 31 33 37 37 Dewpt 17 25 29 31 31 29 26 20 20 16 14 14 18 21 24 24 26 25 PWind dir S S SW SW SW S S S SW Wind char GN BZ BZ GN GN GN GN GN GN Avg clouds B2 B2 B2 B2 B2 B1 B2 B1 SC SC SC SC SC SC B1 B2 B1 B1 PoP 12hr 40 60 50 30 20 20 10 20 20 Rain C C C C S Snow C L C S C C S S S S S S S S $$ MTZ305-161100- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 433 PM MST Mon Dec 15 2025 Date Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 Thu MST 3hrly 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 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 30 44 30 43 8 Temp 47 45 44 40 33 35 42 44 40 37 35 36 39 40 41 37 28 19 15 14 13 Dewpt 37 37 37 32 24 28 33 33 32 32 29 31 31 33 28 22 17 11 8 8 7 RH 68 73 76 73 69 75 70 65 73 82 78 82 73 76 59 54 63 70 73 76 76 Wind dir SW SW SW SW W W SW SW SW SW SW S S SW W W NW NW NW W S Wind spd 26 27 31 32 29 18 13 14 14 16 16 16 19 26 36 39 33 21 13 9 5 Wind gust 42 43 52 54 44 28 24 25 31 41 54 60 49 32 Clouds B2 B2 FW SC FW SC FW B1 B2 B2 B2 OV OV B2 SC B1 B2 B2 B1 SC SC PoP 12hr 0 20 30 50 20 QPF 12hr 0 0 0 0.05 0 Snow 12hr 00-00 00-00 00-00 Rain S S C C C C S Snow S S S S High Wind W W W W W W W W W W W W W Date 12/18/25 Fri 12/19/25 Sat 12/20/25 Sun 12/21/25 Mon 12/22/25 MST 6hrly 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 35 21 37 8 29 8 24 2 20 Temp 27 32 32 34 32 23 17 15 21 25 21 19 19 19 14 10 14 16 Dewpt 17 23 25 28 23 16 12 10 13 15 14 12 11 11 8 6 6 9 PWind dir S S W NW W SW SW S W Wind char GN GN BZ GN GN GN GN GN GN Avg clouds SC B1 B2 B2 B1 B1 B1 B1 SC SC SC SC SC SC B1 B2 B2 B2 PoP 12hr 5 30 20 20 10 10 10 20 20 Rain S S Snow C S S S S S S $$ MTZ314-161100- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 433 PM MST Mon Dec 15 2025 Date Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 Thu MST 3hrly 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 36 46 34 48 18 Temp 54 50 49 46 39 40 44 44 42 39 38 40 43 44 43 36 32 28 26 24 23 Dewpt 34 38 37 33 26 27 29 28 29 28 26 25 29 31 28 15 13 12 14 13 13 RH 46 63 63 60 59 59 55 53 60 64 62 55 57 60 55 42 45 50 60 62 65 Wind dir SW SW SW W W W W W SW SW SW SW SW SW W W W W NW W W Wind spd 23 21 21 24 21 17 14 13 11 12 12 17 21 25 33 37 36 26 18 13 9 Wind gust 35 34 40 47 40 29 28 26 28 37 43 47 55 56 42 31 24 Clouds B2 B1 SC FW SC SC SC B1 OV B2 B2 B2 B2 B2 SC SC B1 B1 B1 SC SC PoP 12hr 5 10 10 60 10 QPF 12hr 0 0 0 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain L L S Snow S S High Wind W W W W W W W W W W W W W Date 12/18/25 Fri 12/19/25 Sat 12/20/25 Sun 12/21/25 Mon 12/22/25 MST 6hrly 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 42 31 46 20 36 21 38 15 37 Temp 34 36 41 43 42 35 29 26 32 30 28 26 33 30 27 25 29 30 Dewpt 17 22 27 30 30 26 22 18 17 15 15 15 18 17 18 17 19 20 PWind dir SW SW W W W SW SW S W Wind char GN GN BZ GN GN GN GN LT GN Avg clouds SC B2 OV B2 B2 B1 B1 B1 SC SC SC SC SC SC B1 B2 B2 B1 PoP 12hr 10 30 40 30 20 20 20 20 30 Rain S C Snow C S C C C S S S S S S S C S $$ http://www.weather.gov/greatfalls