Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
686 FOUS55 KTFX 162023 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 223 PM MDT Fri May 16 2025 MTZ312-171000- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 223 PM MDT Fri May 16 2025 Date 05/16/25 Sat 05/17/25 Sun 05/18/25 Mon 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 37 66 47 54 42 Temp 55 58 52 46 42 38 47 57 62 64 56 52 49 48 50 51 52 51 46 45 44 43 Dewpt 34 35 38 37 34 33 34 35 36 37 41 42 43 43 45 45 45 43 39 38 38 37 RH 45 42 59 71 73 82 60 43 38 37 57 69 80 83 83 80 77 74 76 76 79 79 Wind dir SW W SW SW SW SW SW SW SE E E E E E NE NW NW N N NW NW W Wind spd 5 6 5 6 6 5 6 5 4 9 10 10 8 9 12 14 14 14 13 12 10 10 Clouds B1 B1 B2 B1 SC SC FW SC SC B1 B2 B2 OV OV OV OV OV B2 OV B2 B2 B2 PoP 12hr 20 20 60 100 70 QPF 12hr 0 0 0.17 0.35 0.20 Snow 12hr 00-00 00-00 00-00 Rain D D D D L L C C C Rain shwrs C S S S S L L Tstms S S S S S S Date 05/19/25 Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 60 41 65 40 65 42 63 40 64 Temp 51 57 47 44 59 62 47 42 59 63 48 43 57 59 47 42 59 63 Dewpt 39 39 37 35 35 33 33 31 31 29 35 35 36 33 34 34 36 36 PWind dir W SW SW SW W N W SW W Wind char GN GN BZ GN GN GN GN GN LT Avg clouds B2 B1 B1 SC FW SC SC FW FW SC SC B1 B1 B1 SC SC SC B1 PoP 12hr 40 10 20 10 20 20 40 20 30 Rain C Rain shwrs S S S S C C S C $$ MTZ303-171000- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 223 PM MDT Fri May 16 2025 Date 05/16/25 Sat 05/17/25 Sun 05/18/25 Mon MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 36 64 42 50 38 Temp 56 58 50 45 40 37 46 56 61 63 55 50 46 43 44 47 49 47 44 43 41 39 Dewpt 33 34 35 36 34 32 33 33 32 32 32 34 37 39 41 42 42 40 39 38 36 34 RH 42 40 56 70 79 82 60 42 33 31 41 54 71 86 89 83 77 76 82 82 82 82 Wind dir SW W W W W W W S S SE E E E NE E E NE NW NW NW W W Wind spd 6 10 8 8 8 6 6 5 5 5 5 8 9 10 12 14 14 13 12 10 10 10 Clouds B2 B2 OV B2 B1 SC SC SC B1 B2 B2 B2 OV OV OV OV OV OV OV B2 B2 B2 PoP 12hr 30 10 50 90 60 QPF 12hr 0.01 0 0.19 0.75 0.10 Snow 12hr 00-00 00-00 00-00 Rain C C D D D D L L C C S Rain shwrs C S S Tstms S S S Date 05/19/25 Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 58 38 61 37 62 37 61 37 63 Temp 52 55 44 40 57 58 44 38 57 59 45 39 56 59 45 39 57 61 Dewpt 37 36 33 32 32 29 30 29 28 28 31 32 30 30 33 34 33 33 PWind dir W SW W W W W W W SW Wind char GN BZ BZ BZ BZ GN GN GN GN Avg clouds B1 B1 B1 SC SC SC SC FW FW SC SC B1 SC B1 SC SC SC SC PoP 12hr 20 5 10 5 20 10 30 20 20 Rain S Rain shwrs S S C S S S $$ MTZ319-171000- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 223 PM MDT Fri May 16 2025 Date 05/16/25 Sat 05/17/25 Sun 05/18/25 Mon 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 66 46 54 41 Temp 59 60 52 46 42 38 44 55 62 64 57 52 49 46 48 51 52 50 47 44 43 42 Dewpt 36 37 35 35 34 33 35 37 38 37 39 43 43 41 42 41 40 38 35 35 35 35 RH 42 42 52 65 73 82 70 51 41 37 51 71 80 83 80 68 63 63 63 70 73 76 Wind dir W W W SW SW SW E E E E E NW W W W W W W W W W W Wind spd 4 6 5 3 2 2 1 4 4 5 5 3 2 3 6 11 14 14 12 10 8 5 Wind gust 21 27 25 Clouds B2 B2 B1 B1 SC SC SC SC B1 OV OV OV OV OV OV OV OV OV OV B2 B2 B2 PoP 12hr 20 30 80 100 60 QPF 12hr 0 0 0.21 0.26 0.11 Snow 12hr 00-00 00-00 00-00 Rain D D D D D D L L C C C Rain shwrs C S S C C C Tstms S S S C Date 05/19/25 Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 40 66 41 67 42 66 42 68 Temp 52 57 48 43 58 62 49 42 58 63 49 43 58 62 50 44 59 66 Dewpt 35 34 34 35 35 33 34 34 33 30 34 34 35 32 34 35 36 36 PWind dir W W W W W W W W W Wind char GN GN GN GN LT LT LT LT LT Avg clouds B2 B1 B1 SC SC B1 SC SC SC SC B1 B1 B1 B1 SC SC SC B1 PoP 12hr 30 10 40 20 20 20 40 20 30 Rain C Rain shwrs S C S S S S C C S C Tstms S S S $$ MTZ326-171000- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 223 PM MDT Fri May 16 2025 Date 05/16/25 Sat 05/17/25 Sun 05/18/25 Mon MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 39 65 42 53 36 Temp 57 57 49 45 41 40 48 55 62 64 53 50 46 43 46 49 51 47 43 40 39 38 Dewpt 38 39 40 40 40 39 42 40 38 40 41 42 42 41 43 43 43 40 38 36 35 34 RH 49 51 71 82 96 96 80 57 41 41 64 74 86 93 89 80 74 76 82 85 85 85 Wind dir NW NW W S S S N N E SE E E SE SE W W NW NW NW W W W Wind spd 3 5 2 2 2 1 1 1 2 5 6 6 4 2 5 6 9 10 10 6 5 4 Clouds B2 B2 B2 B2 B2 B2 B1 SC B1 B2 B2 B2 B2 OV OV OV OV OV OV OV B2 B2 PoP 12hr 60 30 70 100 80 QPF 12hr 0.09 0.01 0.04 0.31 0.27 Snow 12hr 00-00 00-00 00-00 Rain L L D D D D C C C Rain shwrs S C C C C L L D D Tstms S S S S C S S Obvis PF PF Date 05/19/25 Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 55 36 63 37 65 39 64 38 65 Temp 47 54 43 39 55 60 45 40 56 61 46 40 57 60 46 40 58 63 Dewpt 35 35 36 35 36 35 38 36 37 36 37 35 37 36 37 35 38 37 PWind dir W SW SW SW W SE W SW W Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 B1 SC B1 B1 SC SC SC B1 B1 B1 B1 SC SC SC B1 PoP 12hr 40 20 40 40 20 30 40 20 30 Rain C Rain shwrs S S C C S S C C C S C Tstms S S S S S $$ MTZ330-171000- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 223 PM MDT Fri May 16 2025 Date 05/16/25 Sat 05/17/25 Sun 05/18/25 Mon 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 32 59 35 46 28 Temp 50 48 41 36 34 32 38 51 57 54 44 41 37 35 38 43 45 42 36 33 31 29 Dewpt 31 32 36 36 34 32 32 30 29 32 37 38 36 35 36 35 35 33 32 31 29 27 RH 48 54 82100100100 79 44 34 43 76 89 96100 92 73 68 70 85 92 92 92 Wind dir SW SW SW SW S S S SW S S S S S S SW SW SW W W NW NW NW Wind spd 8 8 5 3 2 1 2 5 6 5 3 2 2 2 2 4 6 5 4 4 2 2 Wind gust 19 16 Clouds B2 B2 B2 B2 B2 B2 B2 SC SC OV OV OV OV OV OV OV OV OV OV OV B2 B2 PoP 12hr 80 30 90 100 90 QPF 12hr 0.17 0.02 0.17 0.22 0.13 Snow 12hr 00-00 00-00 00-00 Rain D D D D D D C Rain shwrs C C L C S D D D D Snow D D C C C Tstms S S S C S S Obvis PF PF PF Date 05/19/25 Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 49 28 55 28 59 32 60 30 62 Temp 44 48 35 28 49 53 37 29 53 56 38 32 55 56 38 30 57 59 Dewpt 28 29 31 27 29 29 32 28 29 29 31 29 29 27 32 28 27 25 PWind dir NW W SW SW SW S SW S SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B1 B1 B1 SC B1 B1 SC FW SC SC B1 B1 B1 SC FW FW SC PoP 12hr 40 30 50 50 20 30 40 20 30 Rain shwrs C C S S C C S S C C C S C Snow C Snowshwrs S S Tstms S S S S $$ MTZ328-171000- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 223 PM MDT Fri May 16 2025 Date 05/16/25 Sat 05/17/25 Sun 05/18/25 Mon MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 36 61 40 49 33 Temp 54 53 46 42 39 36 42 52 59 58 50 46 45 41 41 45 48 47 41 38 36 34 Dewpt 37 38 39 38 36 34 37 39 37 35 39 41 41 38 37 39 37 36 34 31 29 28 RH 52 57 76 86 89 92 82 61 44 42 66 83 86 89 85 79 65 65 76 76 75 78 Wind dir W NW NE E S S W N SW E SE S S W W NW NW N N NW W W Wind spd 4 5 4 3 3 3 4 5 6 8 6 6 5 6 10 11 13 13 13 11 9 6 Clouds B2 B2 B1 B1 B1 B1 B2 SC B1 OV OV OV OV OV OV OV OV B2 B2 B2 B1 B1 PoP 12hr 50 30 90 90 50 QPF 12hr 0.05 0 0.15 0.34 0.05 Snow 12hr 00-00 00-00 00-00 Rain D D D D C C S S Rain shwrs C C C S D D D D Snow S S Tstms S S S S C S S Obvis PF Date 05/19/25 Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 56 34 63 36 66 39 64 37 67 Temp 47 54 43 36 55 60 45 37 57 62 46 40 57 62 46 39 59 65 Dewpt 33 33 35 31 33 32 34 30 34 32 34 31 34 33 34 32 35 33 PWind dir NW W SW SW SW S SW W SW Wind char GN GN GN GN GN GN GN GN LT Avg clouds B1 B1 B1 SC FW B1 SC FW FW SC B1 B1 SC SC SC FW SC SC PoP 12hr 10 10 30 20 10 20 20 10 20 Rain shwrs C S S S S S Tstms S S S $$ MTZ305-171000- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 223 PM MDT Fri May 16 2025 Date 05/16/25 Sat 05/17/25 Sun 05/18/25 Mon 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 41 68 43 54 40 Temp 62 63 54 50 45 42 50 61 65 65 55 52 48 44 47 51 53 51 47 44 42 41 Dewpt 38 37 40 41 40 39 41 43 41 40 42 43 40 39 41 44 44 44 43 43 41 41 RH 41 38 59 71 82 89 71 51 41 40 61 71 74 82 79 77 71 77 86 96 96100 Wind dir NW NW E E E SE SW SW E E E E E E E E E E E E E E Wind spd 6 5 3 4 4 4 5 5 6 10 11 13 14 16 18 20 19 17 13 11 10 8 Wind gust 29 Clouds FW SC OV B1 B1 SC B1 B1 SC B1 B1 B2 B2 OV OV OV OV OV OV B2 B2 B2 PoP 12hr 50 50 40 80 80 QPF 12hr 0.01 0.01 0.01 0.28 0.20 Snow 12hr 00-00 00-00 00-00 Rain C C L L D D D D L L L Rain shwrs S C S C S C S S S Tstms S S S Date 05/19/25 Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 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 56 39 68 40 67 39 66 40 68 Temp 51 55 46 41 61 64 49 42 61 63 48 41 59 62 48 42 62 64 Dewpt 44 41 42 40 39 34 37 36 37 33 39 38 40 38 41 39 42 39 PWind dir SE S SW SW W SW W W W Wind char GN GN GN GN GN GN GN GN GN Avg clouds B2 B2 B2 B1 SC SC SC SC FW B1 SC B1 B1 B1 B1 SC SC B1 PoP 12hr 60 30 30 20 30 20 40 30 30 Rain L Rain shwrs C C S S C S S C S S C C C S S C $$ MTZ314-171000- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 223 PM MDT Fri May 16 2025 Date 05/16/25 Sat 05/17/25 Sun 05/18/25 Mon MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 37 62 42 54 37 Temp 55 53 47 43 40 38 47 56 60 60 53 49 46 43 46 50 52 48 44 42 40 39 Dewpt 38 39 40 39 37 35 37 40 41 42 42 41 40 39 42 44 47 43 41 40 37 37 RH 53 59 76 86 89 89 68 55 49 51 66 74 79 86 86 80 83 83 89 93 89 92 Wind dir NW NW S S S S W E E E E E E E E E NE N N NW NW NW Wind spd 6 5 3 4 4 4 3 3 5 9 10 10 10 9 10 11 12 13 13 10 10 8 Wind gust 24 Clouds B1 B2 B2 B1 SC B1 SC B1 B1 B2 OV B2 OV OV B2 OV OV OV OV OV OV OV PoP 12hr 50 40 60 90 90 QPF 12hr 0.01 0.02 0.02 0.43 0.71 Snow 12hr 00-00 00-00 00-00 Rain L L L L D D L Rain shwrs C C S C S C C C C D D D D Tstms S S S C C S S S S Date 05/19/25 Tue 05/20/25 Wed 05/21/25 Thu 05/22/25 Fri 05/23/25 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 51 37 61 37 61 38 60 38 60 Temp 43 49 43 40 55 57 44 41 55 58 45 41 55 56 44 40 57 58 Dewpt 38 39 39 35 37 37 37 34 35 33 37 34 37 37 36 33 38 38 PWind dir NW S W SW W SE W W W Wind char GN LT GN LT GN LT GN LT GN Avg clouds OV B2 B2 B1 SC B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC B1 PoP 12hr 70 40 40 40 30 30 50 30 40 Rain L Rain shwrs L C S S C C S S C C C C C C S S C Tstms S S $$ http://www.weather.gov/greatfalls