FOUS55 KTFX 190935 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 335 AM MDT Tue May 19 2026 MTZ312-192200- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 335 AM MDT Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 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 64 40 58 38 63 Temp 32 47 59 61 62 53 47 43 41 51 55 56 52 47 44 41 39 47 54 60 62 Dewpt 24 28 32 35 36 36 36 33 32 35 37 41 40 39 39 37 35 37 34 34 34 RH 72 47 36 38 38 52 65 67 70 54 51 57 63 74 82 85 85 68 46 37 35 Wind dir SW SW W W SW SW SW SW W NW N N NW NW W W W W NW NW N Wind spd 9 12 11 11 10 5 9 10 9 8 8 10 9 6 6 6 5 8 8 6 4 Clouds FW FW B1 B2 B1 B1 SC SC OV OV OV OV B2 B2 B2 B1 B1 SC SC SC SC PoP 12hr 40 20 80 70 20 QPF 12hr 0 0 0.11 0.11 0.02 Snow 12hr 00-00 00-00 00-00 Rain S C L L C C S S Rain shwrs C C L D Tstms S S S C Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 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 40 70 44 76 48 78 51 78 Temp 48 41 64 68 52 46 70 74 56 50 71 75 58 53 72 73 Dewpt 34 31 33 34 38 36 35 36 37 36 34 34 35 34 35 37 PWind dir S SW S SW SW SW SW SW Wind char LT LT LT GN GN GN GN BZ Avg clouds SC SC SC SC SC SC SC FW SC SC SC FW SC SC SC SC PoP 12hr 0 0 0 5 5 0 0 5 $$ MTZ303-192200- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 335 AM MDT Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 62 38 55 34 63 Temp 32 47 56 59 61 52 45 42 40 44 48 53 52 46 41 37 35 46 55 61 63 Dewpt 27 29 31 32 33 33 34 33 34 36 35 37 35 36 35 33 31 31 31 31 30 RH 81 49 38 36 35 48 65 70 79 73 60 54 52 68 79 85 85 55 40 32 29 Wind dir W W W W W W W W NW N N N N N NW NW NW NW NW NW NW Wind spd 9 14 17 18 19 13 12 10 11 12 12 11 12 9 11 11 10 12 10 9 8 Wind gust 27 Clouds B1 B1 B1 B1 B1 SC SC B1 OV OV OV OV B2 B2 B1 SC SC SC SC SC SC PoP 12hr 20 10 80 40 0 QPF 12hr 0 0 0.03 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain C C C C C Rain shwrs S S D Tstms S S S Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 39 69 42 73 44 74 46 72 Temp 46 39 64 67 50 44 68 70 52 45 67 71 54 48 67 68 Dewpt 32 29 31 34 36 34 34 34 36 34 32 31 33 31 32 33 PWind dir SW W SW SW W W SW W Wind char LT LT LT GN BZ BZ BZ BZ Avg clouds SC SC SC SC B1 SC SC FW SC SC SC FW SC B1 SC SC PoP 12hr 0 5 0 10 5 5 0 5 $$ MTZ319-192200- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 335 AM MDT Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 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 65 38 64 38 63 Temp 31 43 57 62 63 55 47 42 38 48 59 62 57 50 45 41 39 44 53 60 63 Dewpt 22 24 28 29 29 32 33 31 31 31 33 35 36 38 38 37 37 37 34 32 29 RH 69 47 33 28 27 41 58 65 76 51 37 36 45 63 76 85 92 76 48 35 27 Wind dir S W W W W SW SW SW SW W NW NW NW NW NW NW NW N N N N Wind spd 3 2 4 6 9 4 5 5 2 2 8 12 13 10 6 6 5 4 4 6 8 Wind gust 18 Clouds FW SC B1 B1 B2 SC B1 B1 B1 B1 B1 B2 OV OV B2 B2 B1 B1 SC SC SC PoP 12hr 20 20 60 90 40 QPF 12hr 0 0 0.05 0.08 0.02 Snow 12hr 00-00 00-00 00-00 Rain S S S D D D C C Rain shwrs S C C D Tstms S S S S Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 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 39 71 41 76 44 78 46 78 Temp 47 39 62 69 52 43 68 74 55 45 71 76 57 47 72 75 Dewpt 32 32 33 31 35 34 35 32 34 34 32 29 33 33 33 30 PWind dir W NW W SW W SW W W Wind char LT LT LT LT LT GN GN GN Avg clouds SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC PoP 12hr 0 5 0 5 0 5 5 10 $$ MTZ326-192200- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 335 AM MDT Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 62 34 63 35 58 Temp 26 40 54 59 60 51 44 38 35 46 58 62 58 49 45 40 36 42 49 55 58 Dewpt 20 21 24 24 23 31 31 29 29 30 34 33 34 39 39 37 35 37 36 35 33 RH 78 46 31 26 24 46 60 70 78 53 40 33 40 68 79 89 96 82 61 47 39 Wind dir S E NW NW NW SW SE S S SW W NW NW NW NW NW NW NW NW NW N Wind spd 4 1 3 5 5 2 3 3 3 1 5 8 9 6 4 4 5 6 4 4 4 Clouds FW FW FW B1 B1 B2 B2 B1 B2 B1 B1 B2 OV OV OV OV B2 B2 B1 B1 SC PoP 12hr 5 20 40 90 60 QPF 12hr 0 0 0.03 0.12 0.06 Snow 12hr 00-00 00-00 00-00 Rain S S C DD D L L C C Rain shwrs C D Tstms S S Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 33 68 39 76 42 78 45 80 Temp 42 34 60 66 48 40 67 74 53 43 72 76 55 46 74 76 Dewpt 32 28 32 31 34 33 35 34 36 34 34 32 33 32 33 33 PWind dir E SW E SW S SW S SW Wind char LT LT LT LT LT LT LT GN Avg clouds SC SC SC FW SC SC FW FW SC SC FW FW SC SC SC SC PoP 12hr 0 0 0 5 10 5 5 10 $$ MTZ330-192200- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 335 AM MDT Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 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 54 26 57 30 55 Temp 18 33 50 54 53 43 35 29 26 39 54 57 55 45 38 34 31 37 49 55 53 Dewpt 15 15 14 14 15 21 23 21 21 23 23 26 29 34 35 34 31 31 29 28 24 RH 88 47 23 20 22 41 61 72 81 52 30 30 37 65 89100100 79 46 35 32 Wind dir N N SW SW W W SE NE SE SW SW W W N N N N N N N N Wind spd 0 0 4 6 8 2 2 1 1 3 9 8 5 1 0 0 0 5 8 6 6 Wind gust 18 13 19 19 18 18 19 18 Clouds CL FW SC B1 B1 B1 B2 B1 B1 B1 B2 B2 B2 OV OV B2 B2 B1 B1 B1 SC PoP 12hr 10 10 40 80 40 QPF 12hr 0 0 0.01 0.13 0.04 Snow 12hr 00-00 00-00 00-00 Rain L D D S C Rain shwrs S C L S S Snow D C C Tstms S S S S S Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 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 26 62 30 69 34 74 36 75 Temp 34 27 58 60 40 32 63 67 44 35 68 71 47 37 70 72 Dewpt 28 26 27 32 32 29 30 35 33 30 29 30 30 28 28 31 PWind dir NE SW SW SW SW SW S SW Wind char LT LT LT LT LT LT LT GN Avg clouds SC SC SC SC B1 SC FW SC SC SC SC SC SC SC SC FW PoP 12hr 5 20 5 5 10 5 5 5 Rain S $$ MTZ328-192200- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 335 AM MDT Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 61 34 62 35 60 Temp 26 39 54 59 60 50 43 37 35 46 58 61 60 50 44 38 36 41 51 58 59 Dewpt 18 21 23 21 21 27 28 27 26 29 31 30 31 34 36 34 33 32 32 33 29 RH 71 48 30 23 22 41 55 67 69 51 36 31 33 54 73 85 89 70 48 39 32 Wind dir S SW SW W W SE S S S W W NW N N N N N N N N N Wind spd 5 4 6 9 9 5 4 4 4 4 8 9 10 8 6 8 8 14 12 8 8 Wind gust 23 Clouds FW FW SC SC B1 B2 B2 B1 B1 B1 B1 B2 B1 B2 B2 B2 B2 B1 SC SC SC PoP 12hr 5 20 20 70 40 QPF 12hr 0 0 0 0.03 0.03 Snow 12hr 00-00 00-00 00-00 Rain S S C L L C C Rain shwrs C Tstms S Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 35 68 39 75 41 78 44 79 Temp 43 36 61 66 48 40 67 73 52 43 72 76 55 46 73 76 Dewpt 29 26 32 30 32 30 33 30 32 30 31 27 29 27 30 28 PWind dir E W SE SW SW SW SW SW Wind char LT LT LT GN GN GN GN BZ Avg clouds SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC PoP 12hr 0 0 0 5 0 0 0 10 $$ MTZ305-192200- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 335 AM MDT Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 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 68 40 62 36 66 Temp 31 45 62 67 63 55 49 45 41 49 57 60 59 52 46 41 37 47 59 64 65 Dewpt 23 27 34 34 36 39 39 37 35 39 39 37 35 37 39 36 34 37 37 35 34 RH 72 49 35 29 36 55 68 73 79 68 51 42 40 56 76 82 89 68 44 34 31 Wind dir S SW SW W W S SW SW SW NW NW NW NW NW W W W W NW NW NW Wind spd 4 5 11 11 10 6 9 10 10 11 13 13 12 8 5 6 6 9 11 11 10 Clouds B1 CL SC B1 B1 B1 B1 B1 OV OV B2 B2 B2 B2 B1 B1 B1 SC SC B1 SC PoP 12hr 30 30 50 10 10 QPF 12hr 0.03 0 0.04 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain S C C C Rain shwrs C C Tstms S S Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 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 38 73 43 79 46 79 49 81 Temp 48 39 67 71 53 45 73 76 57 48 74 77 59 51 76 77 Dewpt 36 32 36 33 37 36 38 37 40 38 36 35 38 36 38 37 PWind dir S W SE SW SW W SW W Wind char LT LT LT LT GN GN GN GN Avg clouds SC SC SC SC SC SC SC FW SC SC FW FW FW B1 SC SC PoP 12hr 0 0 0 5 10 5 5 5 $$ MTZ314-192200- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 335 AM MDT Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 60 36 58 35 57 Temp 31 48 55 58 57 48 43 40 37 51 55 56 52 45 42 39 36 42 49 55 56 Dewpt 25 30 30 33 35 36 33 31 28 33 35 39 40 39 37 36 33 35 34 35 34 RH 78 49 38 39 43 63 67 70 70 50 47 53 63 79 82 89 89 76 56 47 43 Wind dir S W W W W SW S SW SW W NW NW NW NW W W W NW NW NW NW Wind spd 8 8 6 5 5 4 6 6 6 9 9 9 8 4 4 4 6 10 10 10 8 Clouds SC FW SC SC B2 B2 B1 SC OV OV OV OV B2 OV B2 B2 B2 B2 B1 B1 SC PoP 12hr 30 20 80 80 50 QPF 12hr 0 0 0.10 0.11 0.03 Snow 12hr 00-00 00-00 00-00 Rain S D D L L C C C C Rain shwrs S D D Tstms S C C Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 35 66 40 72 43 74 45 77 Temp 41 37 61 64 47 44 67 70 51 47 70 72 54 50 72 73 Dewpt 32 28 32 34 34 34 35 37 36 35 34 36 34 33 35 38 PWind dir SW W S SW SW W SW SW Wind char LT LT LT LT GN GN LT GN Avg clouds SC SC SC SC SC SC FW FW SC SC SC FW SC SC SC FW PoP 12hr 5 5 5 5 10 5 5 10 $$ http://www.weather.gov/greatfalls