FOUS55 KTFX 180416 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 1016 PM MDT Sun May 17 2026 MTZ312-181000- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 1016 PM MDT Sun May 17 2026 Date 05/17/26 Mon 05/18/26 Tue 05/19/26 Wed 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 28 53 30 65 40 Temp 33 31 29 38 46 50 51 45 39 34 31 47 60 64 62 54 48 44 41 Dewpt 29 28 27 29 28 27 26 28 28 25 23 28 30 33 33 34 34 33 32 RH 85 88 92 70 49 41 37 51 64 69 72 47 32 31 33 46 58 65 70 Wind dir W NW SW W E E SE SE S S SW SW SW W W W SW SW SW Wind spd 5 5 5 4 5 5 6 6 6 8 9 11 10 11 10 5 9 10 8 Clouds B1 B2 B2 B1 B1 SC SC FW SC SC SC FW SC B1 B1 B1 SC SC SC PoP 12hr 20 0 0 30 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain Rain shwrs S Snow Date 05/20/26 Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 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 39 67 43 68 43 76 48 77 Temp 56 60 47 42 61 65 52 46 61 66 52 46 70 73 56 50 71 74 Dewpt 33 35 38 36 34 34 38 37 35 37 39 36 34 35 36 34 32 32 PWind dir W W SW SW W S SW SW W Wind char GN LT LT LT LT LT GN GN GN Avg clouds B1 B1 B2 B1 SC SC B1 B1 B1 B1 SC SC SC FW SC SC SC SC PoP 12hr 50 40 5 20 30 10 5 5 5 Rain S S S Rain shwrs S C C C Tstms S S S $$ MTZ303-181000- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 1016 PM MDT Sun May 17 2026 Date 05/17/26 Mon 05/18/26 Tue 05/19/26 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 24 54 30 63 37 Temp 31 27 25 38 47 52 53 47 39 33 31 46 59 61 61 52 45 41 38 Dewpt 27 24 23 27 27 27 26 28 29 27 26 28 30 32 33 34 33 32 31 RH 85 88 92 64 45 38 35 47 67 78 81 49 33 33 35 50 62 70 76 Wind dir NW NW NW NW E SE S S SW SW W W W W W W W W NW Wind spd 6 6 5 3 3 6 6 6 8 6 8 12 16 19 19 14 12 11 12 Clouds SC SC SC FW B2 SC SC SC SC SC SC SC SC B1 B1 SC SC SC B1 PoP 12hr 5 20 10 10 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain Rain shwrs S S C SnowTstms S Date 05/20/26 Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 59 35 65 39 66 40 72 43 72 Temp 52 57 43 37 60 63 48 41 58 63 48 42 66 70 52 45 66 70 Dewpt 33 34 35 33 32 33 36 35 34 35 36 34 33 33 33 31 30 30 PWind dir NW NW W W NW SW SW W W Wind char GN GN GN GN GN GN GN BZ BZ Avg clouds B1 B2 B1 SC SC B1 B2 B1 B1 B1 B1 SC SC SC SC SC SC FW PoP 12hr 60 30 5 20 30 5 5 5 5 Rain C S S C Rain shwrs C L C Tstms S S $$ MTZ319-181000- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 1016 PM MDT Sun May 17 2026 Date 05/17/26 Mon 05/18/26 Tue 05/19/26 Wed 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 31 56 32 65 38 Temp 35 33 31 38 48 54 55 48 41 34 32 43 57 63 64 55 47 42 38 Dewpt 25 26 27 25 24 22 19 24 25 23 24 24 26 27 27 30 31 30 29 RH 66 75 85 59 39 28 24 39 52 64 72 47 30 25 24 38 53 62 70 Wind dir W W W NW N N NW W SW SW S SW W W W W SW SW SW Wind spd 5 2 3 6 6 8 8 3 4 4 3 3 6 10 10 6 6 5 4 Clouds B1 B1 B1 B2 SC FW B1 SC SC FW FW SC SC SC B1 B1 SC FW SC PoP 12hr 10 10 5 20 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain Rain shwrs Snow Snowshwrs Tstms Date 05/20/26 Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 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 65 37 67 40 71 41 76 44 78 Temp 58 62 48 39 60 66 52 42 61 69 52 42 69 75 55 45 70 76 Dewpt 31 31 35 35 34 31 34 35 34 31 35 34 34 30 33 33 31 29 PWind dir W NW W W W W SW W W Wind char LT LT LT LT LT LT LT GN GN Avg clouds SC B1 B1 SC SC B1 B1 B1 SC SC SC SC SC SC SC SC SC FW PoP 12hr 40 40 5 5 20 5 5 5 10 Rain C Rain shwrs C S Tstms S S $$ MTZ326-181000- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 1016 PM MDT Sun May 17 2026 Date 05/17/26 Mon 05/18/26 Tue 05/19/26 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 1518 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 25 51 25 61 33 Temp 33 29 26 34 42 48 51 43 34 29 26 40 54 59 61 51 43 39 34 Dewpt 26 25 25 26 25 24 22 25 26 23 20 22 25 24 25 30 30 29 26 RH 75 85 96 72 50 39 32 49 72 78 78 48 32 26 25 44 60 67 72 Wind dir NW N W NW N N N SE S S S E W W NW SE SE SE SE Wind spd 5 0 3 8 6 8 6 4 6 4 4 1 4 9 6 2 4 3 3 Clouds B1 B1 B1 B1 B1 B1 SC FW FW FW FW FW FW SC B1 B1 B1 SC SC PoP 12hr 5 10 0 10 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain Rain shwrs Tstms Obvis PF PF Date 05/20/26 Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 64 35 65 38 69 38 76 42 79 Temp 58 60 45 38 58 63 48 40 61 67 49 40 69 74 53 44 72 77 Dewpt 31 31 35 33 34 31 35 34 35 32 35 33 34 33 35 33 32 32 PWind dir W NW W NE W E SW S W Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 B1 SC SC B1 B1 B1 B1 SC SC SC SC SC SC SC FW PoP 12hr 20 40 10 20 30 5 5 10 5 Rain C C S S S Rain shwrs S C Tstms S S $$ MTZ330-181000- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 1016 PM MDT Sun May 17 2026 Date 05/17/26 Mon 05/18/26 Tue 05/19/26 Wed 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 21 44 18 54 26 Temp 28 25 23 29 39 44 43 35 27 22 19 34 51 54 52 43 35 30 27 Dewpt 20 20 18 17 13 9 9 18 21 19 16 18 15 14 15 24 25 23 22 RH 71 81 81 60 34 23 24 49 78 88 88 51 23 20 23 47 66 75 81 Wind dir N N N NE N N N N N E SE S SW SW W SW S N N Wind spd 11 10 10 16 14 10 10 4 1 1 1 1 6 8 8 1 1 0 0 Wind gust 28 27 29 36 27 20 23 18 Clouds B2 B2 B2 B1 B1 SC SC FW FW FW FW FW SC B1 B2 B1 SC SC SC PoP 12hr 5 5 5 10 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date 05/20/26 Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 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 58 28 61 30 65 31 71 34 74 Temp 55 54 37 30 56 59 40 32 59 63 41 32 65 69 45 36 68 72 Dewpt 23 27 31 29 26 27 31 30 28 3132 28 27 31 32 29 27 28 PWind dir SW W W W W SW SW SW SW Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC B1 B1 B1 SC SC B1 B1 SC SC B1 SC FW FW SC SC FW FW PoP 12hr 5 20 10 20 20 5 5 5 5 Rain S S Rain shwrs S Tstms S $$ MTZ328-181000- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 1016 PM MDT Sun May 17 2026 Date 05/17/26 Mon 05/18/26 Tue 05/19/26 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 25 51 26 60 33 Temp 31 28 26 33 44 49 50 42 34 30 27 39 54 58 59 50 42 37 34 Dewpt 22 22 22 23 22 20 19 21 21 20 19 21 23 21 22 27 27 26 24 RH 69 78 85 66 41 31 29 43 58 66 71 48 30 23 24 41 55 64 66 Wind dir N NE E N N N N NE S S S SW SW SW W NW SW SW S Wind spd 12 8 6 18 18 14 12 4 4 5 5 5 6 9 8 4 4 5 4 Clouds SC SC SC SC FW SC FW SC FW FW FW FW SC B1 B1 B1 B1 SC SC PoP 12hr 20 0 10 10 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain Snow Snowshwrs Tstms Date 05/20/26 Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 63 35 66 38 70 38 76 42 78 Temp 59 60 44 37 59 64 47 39 62 68 48 41 69 74 52 44 71 76 Dewpt 29 29 31 29 31 29 33 30 31 29 30 28 30 29 31 29 28 27 PWind dir W N NW W W SW SW SW SW Wind char LT LT LT LT LT LT GN GN GN Avg clouds FW B1 B1 SC SC SC B1 B1 SC FW SC SC SC SC SC SC SC FW PoP 12hr 5 20 5 10 5 0 5 5 5 Rain S $$ MTZ305-181000- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 1016 PM MDT Sun May 17 2026 Date 05/17/26 Mon 05/18/26 Tue 05/19/26 Wed 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 27 55 28 68 39 Temp 36 32 28 36 46 52 54 45 38 33 29 43 61 67 65 56 50 45 40 Dewpt 33 30 27 29 29 27 26 27 28 26 24 28 33 32 33 36 37 35 34 RH 89 92 96 75 51 38 34 49 67 75 81 55 35 27 30 47 61 68 79 Wind dir NW NW NW N N N NE E SE E E SW SW SW SW S S SW SW Wind spd 6 5 4 6 6 6 5 6 8 5 4 3 11 11 10 6 10 10 10 Clouds B2 B2 B1 SC SC SC SC FW FW SC SC FW FW SC B1 B1 B1 SC B1 PoP 12hr 20 5 0 50 10 QPF 12hr 00 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain Date 05/20/26 Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 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 65 37 68 41 69 42 77 46 78 Temp 60 63 48 39 63 66 52 44 63 68 51 44 72 75 57 48 72 76 Dewpt 38 35 38 36 36 34 38 38 39 36 39 37 38 36 39 37 36 33 PWind dir W W W S W SE SW SW W Wind char GN LT LT LT LT LT LT GN GN Avg clouds B1 B1 B1 SC SC SC B1 B1 B1 SC SC SC SC SC SC SC SC SC PoP 12hr 40 20 5 30 20 10 10 10 10 Rain S C S Rain shwrs C S Tstms S $$ MTZ314-181000- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 1016 PM MDT Sun May 17 2026 Date 05/17/26 Mon 05/18/26 Tue 05/19/26 Wed MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 27 47 25 60 35 Temp 33 32 30 33 38 43 45 38 31 29 27 43 55 58 59 48 43 40 37 Dewpt 31 30 29 29 28 27 26 27 26 24 21 26 29 31 33 34 32 30 28 RH 92 92 96 85 67 53 47 64 81 81 78 51 37 36 37 58 65 67 70 Wind dir NW NW NW NW NW NW N SE S S S SW W W SW S S SW SW Wind spd 12 12 12 12 10 9 6 3 5 6 8 5 6 8 5 4 8 6 6 Clouds B2 OV OV OV B2 B2 SC SC FW FW FW FW FW SC B1 B1 B1 SC SC PoP 12hr 40 40 0 30 5 QPF 12hr 0.01 0 0 0 0 Snow 12hr T 00-00 00-00 Rain Rain shwrs S Snow C S C Snowshwrs S Date 05/20/26 Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 59 35 62 39 64 39 72 44 75 Temp 56 56 42 39 57 60 46 42 59 62 46 43 67 70 51 47 69 72 Dewpt 35 36 36 35 33 34 35 35 36 37 36 35 35 37 35 34 34 37 PWind dir W W W S W S SW SW W Wind char GN LT LT LT LT LT LT LT GN Avg clouds SC B2 B1 SC B1 SC B1 B1 B1 B1 SC SC SC SC SC SC SC SC PoP 12hr 60 40 20 20 40 10 10 10 20 Rain S S S S S Rain shwrs L C C S Tstms S S C S $$ http://www.weather.gov/greatfalls