FOUS55 KTFX 200631 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 1231 AM MDT Wed May 20 2026 MTZ312-211000- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 1231 AM MDT Wed May 20 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 Fri 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 39 56 36 60 37 Temp 43 41 50 53 53 50 40 38 37 37 45 53 57 59 52 45 40 38 Dewpt 33 32 37 39 44 40 36 34 33 32 36 35 35 33 35 35 32 30 RH 67 70 61 59 71 68 85 85 85 82 70 50 43 37 52 68 73 73 Wind dir SW SW W NW N N W W W W NW NW NW NW SE S S S Wind spd 10 9 9 8 10 6 5 5 5 6 8 6 5 4 5 6 6 6 Clouds B1 B2 B2 OV B2 OV OV B2 B1 B1 B2 B2 B1 SC SC FW FW SC PoP 12hr 5 90 60 20 0 QPF 12hr 0 0.15 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L D L S S Tstms C S Date 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 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 70 44 77 49 81 52 82 50 71 Temp 64 69 52 44 70 75 57 51 75 79 60 54 77 77 59 52 67 65 Dewpt 33 33 36 33 35 35 37 35 36 35 36 35 37 40 41 40 40 42 PWind dir SW SW SW SW SW SW SW SW W Wind char LT LT GN GN GN GN GN GN GN Avg clouds SC SC SC FW FW SC SC SC SC FW SC B1 SC SC B1 B1 B1 B1 PoP 12hr 0 0 0 0 0 0 10 30 50 Rain S C C Rain shwrs C Tstms S $$ MTZ303-211000- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 1231 AM MDT Wed May 20 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 Fri MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 38 54 33 62 37 Temp 43 40 43 46 52 51 43 39 36 34 45 54 59 62 54 45 39 37 Dewpt 34 34 36 36 36 34 34 33 31 28 30 31 31 29 31 31 30 29 RH 70 79 76 68 54 52 70 79 82 78 55 41 34 28 41 58 70 72 Wind dir W NW N N N NW NW NW NW NW NW N NW NW E S SW W Wind spd 12 10 13 13 12 12 10 10 11 12 13 10 6 4 5 6 5 4 Wind gust 20 Clouds B2 B2 B2 B2 B2 B2 B1 SC SC B1 B1 B1 B1 B1 SC SC SC B1 PoP 12hr 5 70 20 10 0 QPF 12hr 0 0.03 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain S Rain shwrs S L C L S Tstms SDate 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 69 42 74 46 78 49 77 45 66 Temp 64 68 50 42 69 72 54 47 72 76 56 50 72 73 53 47 62 62 Dewpt 30 34 35 32 33 34 35 33 32 32 32 31 32 33 37 38 38 38 PWind dir W W W W W SW SW NW NW Wind char LT LT GN GN BZ GN BZ BZ BZ Avg clouds B1 SC B1 SC SC SC SC SC FW SC B1 B1 B1 SC B1 B1 B1 B1 PoP 12hr 5 5 5 0 0 0 5 40 40 Rain C C C C $$ MTZ319-211000- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 1231 AM MDT Wed May 20 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 Fri 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 38 63 36 61 37 Temp 41 38 47 58 61 53 37 37 37 36 43 51 58 61 53 45 39 37 Dewpt 32 32 33 36 41 41 34 34 34 34 36 34 33 30 32 32 30 31 RH 70 79 58 44 48 64 89 89 89 92 76 52 39 31 44 60 70 79 Wind dir SW SW W NW NW NW NW NW NW NW N N N N NW S S S Wind spd 5 4 2 5 13 13 9 6 5 6 6 6 8 8 2 3 3 2 Clouds B1 SC B1 B2 B2 OV OV B2 B2 B1 B1 B1 SC SC SC FW SC SC PoP 12hr 0 60 90 20 0 QPF 12hr 0 0.03 0.12 0 0 Snow 12hr 00-00 00-00 00-00 Rain C S Rain shwrs C C L L Tstms S C Date 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 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 70 41 77 45 80 46 81 45 70 Temp 61 70 51 41 67 75 56 46 73 78 58 47 75 77 58 49 64 64 Dewpt 34 31 34 32 35 32 35 35 37 34 36 36 37 35 39 39 39 39 PWind dir NW W W W SW W SW W NW Wind char LT LT LT LT LT LT GN GN GN Avg clouds SC SC SC FW FW SC SC SC FW FW SC SC SC SC B1 SC SC B1 PoP 12hr 0 0 0 5 5 0 20 30 50 Rain S C C Rain shwrs S C Tstms S S $$ MTZ326-211000- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 1231 AM MDT Wed May 20 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 Fri MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 33 61 33 56 31 Temp 38 34 45 57 60 55 40 36 34 34 40 48 52 54 47 40 36 32 Dewpt 30 29 31 35 34 37 36 35 34 34 36 36 34 33 35 33 31 28 RH 73 82 58 43 37 51 85 96100100 85 63 50 45 63 76 82 85 Wind dir S S N W NW N N SW NW NW N NW NW N N SE SE SE Wind spd 3 3 0 5 6 11 4 3 4 6 4 4 5 5 0 5 4 3 Clouds SC B1 B1 B1 B2 B2 OV OV OV OV B2 B1 B1 B1 FW FW FW SC PoP 12hr 5 30 90 50 0 QPF 12hr 0 0 0.17 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain L L C Rain shwrs L L C C C Tstms S S Date 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 66 36 75 43 80 45 82 46 72 Temp 58 66 47 37 66 74 53 44 73 78 56 47 77 79 58 50 67 67 Dewpt 33 30 33 28 35 34 36 34 37 36 36 35 36 36 36 38 38 38 PWind dir SW SE SW S SW S SW S S Wind char LT LT LT LT LT LT GN GN GN Avg clouds SC SC SC FW FW SC B1 SC FW FW B1 SC SC FW SC SC SC B1 PoP 12hr 0 0 0 5 0 20 10 10 40 Rain S Rain shwrs C Tstms S $$ MTZ330-211000- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 1231 AM MDT Wed May 20 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 Fri 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 26 56 28 51 23 Temp 29 26 39 53 56 53 37 32 28 29 35 45 50 51 40 31 26 24 Dewpt 21 21 23 24 29 31 32 31 28 28 31 29 28 26 28 27 25 24 RH 72 81 52 32 35 43 82 96100 96 85 53 42 37 62 85 96100 Wind dir SW N SW SW W W NW N N N N N N N N NE N N Wind spd 1 0 1 6 8 6 1 0 0 4 10 11 9 9 4 1 0 0 Wind gust 18 17 19 26 25 23 23 Clouds SC B1 SC SC B2 OV OV OV OV OV B2 B1 B1 SC SC FW FW FW PoP 12hr 5 20 90 40 0 QPF 12hr 0 0 0.06 0.02 0 Snow 12hr 00-00 00-00 00-00 Rain D Rain shwrs S L L C Snow S L C Snowshwrs C Tstms S S Date 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 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 62 30 68 34 75 37 77 38 67 Temp 56 60 39 30 63 67 45 35 70 73 48 38 73 74 50 41 64 63 Dewpt 23 26 30 27 29 31 32 30 31 35 33 31 30 33 33 32 29 31 PWind dir W SW SW SSW S S S S Wind char LT LT LT LT LT LT GN GN GN Avg clouds SC SC B1 SC FW SC B1 SC FW FW SC SC FW FW SC SC SC SC PoP 12hr 5 0 0 5 20 20 20 5 20 Rain S Rain shwrs S S S Tstms S S S $$ MTZ328-211000- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 1231 AM MDT Wed May 20 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 Fri MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 34 61 33 58 32 Temp 37 35 45 57 60 58 47 36 33 33 40 49 55 57 47 40 35 33 Dewpt 28 28 30 32 30 31 33 33 31 31 33 31 31 27 28 28 27 26 RH 70 75 55 38 32 36 58 89 92 92 76 50 40 31 47 62 72 75 Wind dir S S SW SW W N NE N N N N N N N NE SE S S Wind spd 5 4 4 6 9 11 11 8 11 17 19 16 13 11 4 4 4 3 Wind gust 28 32 27 Clouds B2 B1 B1 B2 B2 B2 OV B2 B2 B2 B1 SC SC SC FW FW SC SC PoP 12hr 0 10 80 30 0 QPF 12hr 0 0 0.05 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain L C C Rain shwrs C L Tstms S Date 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 66 38 75 43 80 44 81 44 69 Temp 59 66 47 39 67 74 53 45 73 77 55 47 75 78 55 47 64 64 Dewpt 31 28 30 27 33 30 32 30 34 32 33 30 34 32 33 35 36 33 PWind dir SW SE SW SW SW SW SW S S Wind char LT LT LT LT GN GN BZ BZ BZ Avg clouds SC SC SC FW FW SC B1 SC FW FW SC SC SC SC SC SC SC B1 PoP 12hr 0 0 0 5 5 0 10 10 40 Rain S Rain shwrs C Tstms S $$ MTZ305-211000- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 1231 AM MDT Wed May 20 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 Fri 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 39 61 34 65 35 Temp 44 40 47 56 59 59 48 43 37 35 45 57 61 63 54 46 40 36 Dewpt 37 35 39 41 38 37 33 33 32 33 37 37 35 36 37 37 34 31 RH 76 82 74 57 45 44 56 67 82 92 73 47 38 36 52 71 79 82 Wind dir SW SW W NW NW NW NW W W W NW NW NW NW N S S S Wind spd 9 10 10 12 12 12 6 5 5 6 8 8 8 6 0 4 3 3 Clouds SC B2 B2 B2 B2 B1 B1 SC B1 B2 B2 B1 SC SC FW FW FW FW PoP 12hr 2050 10 20 0 QPF 12hr 0 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S Tstms S Date 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 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 73 42 80 48 84 51 86 50 79 Temp 67 71 53 43 74 78 58 50 78 82 61 52 81 82 62 53 73 73 Dewpt 36 32 36 33 39 36 40 38 38 34 37 36 37 38 43 43 44 44 PWind dir SW S SW S SW SW SW SW NW Wind char LT LT LT LT GN GN LT GN GN Avg clouds FW SC SC SC FW SC SC SC FW FW SC SC SC SC B1 SC SC SC PoP 12hr 0 0 0 0 0 0 10 10 20 Rain shwrs S Tstms S $$ MTZ314-211000- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 1231 AM MDT Wed May 20 2026 Date 05/19/26 Wed 05/20/26 Thu 05/21/26 Fri MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 35 56 33 55 33 Temp 39 36 50 53 54 50 39 35 35 33 41 48 53 55 46 39 37 34 Dewpt 31 29 34 37 41 41 36 33 32 30 35 35 35 35 35 32 31 28 RH 73 75 54 54 61 71 89 92 89 89 79 60 50 47 65 76 79 78 Wind dir SW SW W W NW NW W W W W NW NW NW NW W S S S Wind spd 6 6 8 9 9 8 4 3 4 6 9 9 8 6 2 4 4 5 Clouds SC B1 OV B1 B2 OV OV B2 B2 B2 B2 B2 B2 SC SC FW FW FW PoP 12hr 10 80 60 40 5 QPF 12hr 0 0.08 0.03 0 0 Snow 12hr 00-00 00-00 00-00 Rain C Rain shwrs C D L C C C Tstms C C S Date 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 Tue 05/26/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 66 39 73 45 77 47 80 47 71 Temp 60 65 46 41 68 71 52 49 73 75 55 51 77 77 57 52 68 66 Dewpt 32 34 32 29 34 36 35 34 35 38 36 35 35 39 37 40 41 43 PWind dir W S W SW W SW SW S W Wind char LT LT LT LT LT LT GN GN GN Avg clouds FW FW SC SC FW FW SC SC SC FW SC SC SC FW SC SC SC B1 PoP 12hr 5 0 0 0 5 5 10 20 40 Rain shwrs S C Tstms S S $$ http://www.weather.gov/greatfalls