Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
010 FOUS55 KTFX 120919 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 318 AM MDT Mon May 12 2025 MTZ312-122200- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 318 AM MDT Mon May 12 2025 Date Mon 05/12/25 Tue 05/13/25 Wed 05/14/25 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 72 45 59 43 64 Temp 54 59 68 71 66 56 51 49 47 49 54 58 56 52 47 46 44 50 58 62 61 Dewpt 48 47 42 35 36 37 38 38 37 38 36 38 38 37 38 38 36 38 36 34 36 RH 80 64 39 27 33 49 61 66 68 66 50 47 51 56 71 73 73 63 44 35 39 Wind dir SW SW SW SW W W SW SW SW W NW NW N NW W W W W NW NW NW Wind spd 11 18 21 21 18 13 11 10 10 11 11 11 11 10 6 6 8 10 11 12 14 Wind gust 33 32 Clouds B1 B1 SC B1 B2 OV OV OV B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 20 40 60 50 50 QPF 12hr 0 0.07 0.04 0.01 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C C L L C C C C C C C C C Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 Sun 05/18/25 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 43 57 39 62 42 62 42 57 Temp 49 44 51 57 47 40 58 61 50 43 58 58 47 43 53 56 Dewpt 38 36 36 35 35 34 36 35 38 36 35 34 36 36 38 36 PWind dir W NW W SW W W NE N Wind char GN GN LT LT GN GN GN GN Avg clouds B2 B2 B2 B2 B1 B1 B1 B2 B2 B1 B1 B1 B2 B2 B1 B2 PoP 12hr 60 70 5 20 30 50 50 70 Rain shwrs C L L C S C S S C C C C L Tstms S $$ MTZ303-122200- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 318 AM MDT Mon May 12 2025 Date Mon 05/12/25 Tue 05/13/25 Wed 05/14/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 63 40 56 36 64 Temp 51 56 63 62 61 52 47 43 41 45 50 54 53 47 42 39 36 46 57 61 60 Dewpt 39 36 36 32 30 31 33 33 34 35 38 39 37 36 35 32 31 32 31 33 34 RH 63 47 36 32 31 44 58 67 76 68 63 57 54 65 76 76 82 58 37 35 37 Wind dir W W SW W W W W W NW NW NW NW NW NW W W W W NW NW W Wind spd 10 18 26 26 23 18 14 12 12 18 19 17 13 10 6 8 9 11 13 16 18 Wind gust 36 36 34 29 27 Clouds B2 SC SC SC SC B2 B2 B2 B2 B1 OV B2 B2 B2 B1 B1 B1 SC B1 B1 B1 PoP 12hr 20 20 60 20 30 QPF 12hr 0.02 0 0.10 0.01 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S L L S S S S S S C C C Tstms Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 Sun 05/18/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 39 54 36 59 38 58 38 56 Temp 47 40 49 54 44 37 56 56 44 39 54 56 44 39 52 55 Dewpt 37 35 32 32 33 31 34 34 35 33 34 33 36 33 34 33 PWind dir NW NW W W W W N NW Wind char BZ BZ LT GN GN GN GN GN Avg clouds B1 B2 B2 B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 B2 B2 B2 PoP 12hr 50 70 5 20 30 50 40 50 Rain shwrs C C L S C S S C C C C C Tstms S S $$ MTZ319-122200- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 318 AM MDT Mon May 12 2025 Date Mon 05/12/25 Tue 05/13/25 Wed 05/14/25 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 73 44 59 43 62 Temp 54 59 69 70 67 57 50 48 45 46 52 57 56 52 49 46 43 47 53 58 59 Dewpt 44 44 34 31 33 36 39 40 39 38 38 38 37 37 39 39 38 38 36 35 37 RH 69 57 27 23 28 45 66 74 79 73 59 49 49 56 68 76 82 71 52 42 44 Wind dir SW SW SW SW W W SW SW SW W NW N N NW NW W W W NW NW W Wind spd 6 10 18 18 14 10 5 4 2 5 8 10 11 8 5 4 5 8 12 16 17 Wind gust 21 34 33 25 23 28 27 Clouds B2 B2 B1 B2 B2 OV OV OV B2 B1 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B2 PoP 12hr 20 60 80 50 60 QPF 12hr 0 0.21 0.06 0.02 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C L C D D C C C C C C L L C Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 Sun 05/18/25 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 43 60 41 63 43 63 43 59 Temp 49 44 51 59 49 42 56 59 50 43 57 59 49 43 53 58 Dewpt 37 37 36 38 38 36 37 37 38 38 36 34 38 39 35 37 PWind dir W NW W W W W NW NW Wind char GN LT LT LT LT LT LT GN Avg clouds B2 B1 B2 B2 B1 B1 B2 B2 B2 B2 B1 B2 B2 B2 B2 B2 PoP 12hr 40 70 10 40 40 70 50 70 Rain shwrs C C C L C C S C L C C L L Tstms S S S $$ MTZ326-122200- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 318 AM MDT Mon May 12 2025 Date Mon 05/12/25 Tue 05/13/25 Wed 05/14/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 74 40 57 39 57 Temp 53 63 73 74 70 56 48 44 42 44 51 55 55 49 45 42 40 43 48 52 54 Dewpt 41 41 35 33 34 35 39 38 38 38 40 41 39 41 42 40 38 39 37 38 36 RH 64 44 25 22 26 45 71 79 86 79 66 59 55 74 89 93 92 86 65 59 50 Wind dir S SW SW SW W W W W NW W NW NW NW NW NW NW NW NW NW NW NW Wind spd 9 11 13 16 13 11 6 4 2 3 4 6 8 5 5 5 5 6 8 10 10 Wind gust 23 32 34 26 Clouds B1 SC FW B2 B2 B2 OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 PoP 12hr 10 70 90 70 80 QPF 12hr 0 0.14 0.06 0.12 0.13 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C C D D L L L L L L D D C Tstms S S S S Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 Sun 05/18/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 38 58 36 59 38 60 37 55 Temp 44 39 50 57 43 37 53 56 44 39 53 55 43 37 50 54 Dewpt 37 35 36 38 37 34 38 38 38 36 39 39 37 35 35 36 PWind dir W W SW SW SW W E NE Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 50 60 10 40 60 70 70 80 Rain shwrs C S S L C L C C L L C L D Tstms S S S S $$ MTZ330-122200- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 318 AM MDT Mon May 12 2025 Date Mon 05/12/25 Tue 05/13/25 Wed 05/14/25 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 67 33 53 31 48 Temp 42 51 64 67 65 54 44 38 35 39 48 52 49 41 36 33 31 35 42 45 44 Dewpt 38 36 30 29 29 32 33 32 30 31 30 29 30 33 34 32 31 31 31 31 33 RH 86 56 28 24 26 43 65 79 82 73 49 41 48 73 92 96100 85 65 58 65 Wind dir S SW SW SW SW SW NW SW S SW SW SW W NW W W W NW NW NW W Wind spd 5 8 10 12 9 4 3 2 2 2 4 6 5 3 2 2 3 4 6 8 6 Wind gust 16 20 26 28 21 17 19 17 Clouds SC SC SC SC SC B1 B1 B2 B2 B2 OV OV OV OV OV OV OV OV OV OV OV PoP 12hr 10 50 90 90 90 QPF 12hr 0 0.03 0.02 0.28 0.15 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C S D D D D D D D D D D L Snowshwrs C C S D D D Tstms S S S S Winter Weath Y Y Y Y Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 Sun 05/18/25 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 29 51 28 52 32 53 29 53 Temp 33 29 46 48 34 28 48 49 36 32 48 49 33 29 50 50 Dewpt 32 28 30 29 31 28 30 33 34 32 32 31 31 29 29 30 PWind dir W W SW SW SW SW E N Wind char LT LT LT LT LT LT LT LT Avg clouds OV B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 70 70 30 50 70 80 80 80 Rain shwrs L C C L C C L C C D D L L D Snowshwrs C C L L Tstms S S S S S $$ MTZ328-122200- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 318 AM MDT Mon May 12 2025 Date Mon 05/12/25 Tue 05/13/25 Wed 05/14/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 68 38 54 37 55 Temp 52 58 67 68 63 50 42 41 39 41 48 53 51 47 43 40 38 41 48 53 53 Dewpt 44 39 28 26 30 33 35 37 34 37 36 35 34 38 38 37 34 36 35 33 33 RH 74 49 23 20 29 52 76 85 82 85 63 50 52 71 82 89 85 82 60 46 46 Wind dir S SW SW SW W W S S S W NW N N N N N NW NW NW NW NW Wind spd 11 20 28 29 21 13 8 5 5 5 6 8 10 11 10 10 9 11 14 16 13 Wind gust 31 43 43 32 Clouds B1 B1 B1 B2 B2 OV OV OV OV B2 OV OV OV OV B2 OV B2 B2 B2 B2 B2 PoP 12hr 10 80 90 70 60 QPF 12hr 0 0.23 0.11 0.08 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L D C L L D D L L L L L L L L S Tstms S S S S Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 Sun 05/18/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 35 58 37 57 38 58 38 54 Temp 42 36 51 57 44 38 53 55 45 39 54 55 42 38 51 54 Dewpt 34 31 31 32 34 31 37 35 37 34 35 33 36 35 35 36 PWind dir W W NE SW W SW N NW Wind char GN LT LT LT LT LT GN GN Avg clouds B2 SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 20 20 10 30 40 60 60 60 Rain shwrs S S C C S S L L C C L Tstms S S S S $$ MTZ305-122200- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 318 AM MDT Mon May 12 2025 Date Mon 05/12/25 Tue 05/13/25 Wed 05/14/25 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 77 45 62 41 67 Temp 50 58 70 75 73 61 54 49 47 49 56 60 58 51 46 44 42 50 59 64 64 Dewpt 47 48 43 34 33 39 39 39 38 38 40 40 38 39 40 40 38 40 38 35 35 RH 89 69 38 22 23 44 57 68 71 66 55 47 47 63 79 86 86 68 45 34 34 Wind dir SE W SW W W W W W W W W NW NW NW NW NW NW NW N N N Wind spd 9 13 19 21 19 14 11 11 12 14 17 16 13 10 5 5 5 8 11 11 12 Wind gust 32 Clouds B1 SC FW FW B2 B2 OV OV OV B1 B1 B2 B2 B2 B1 B2 B2 B1 B2 B2 B2 PoP 12hr 20 40 40 30 40 QPF 12hr 0 0.03 0 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C C C C C S S C C C C C Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 Sun 05/18/25 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 42 60 34 65 40 63 38 61 Temp 48 43 53 59 44 35 59 64 49 41 59 61 47 39 55 57 Dewpt 38 38 36 35 31 29 33 32 34 33 38 37 39 34 40 37 PWind dir NW NW NW NW E SW E E Wind char GN BZ GN LT LT GN GN GN Avg clouds B2 B1 B2 B1 SC SC SC SC B1 B2 B1 B1 B1 B1 B2 B2 PoP 12hr 40 50 5 10 30 50 40 50 Rain shwrs C C C C C C C C C C C C Tstms S $$ MTZ314-122200- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 318 AM MDT Mon May 12 2025 Date Mon 05/12/25 Tue 05/13/25 Wed 05/14/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 74 41 57 40 56 Temp 49 60 69 73 70 57 50 46 43 47 53 56 54 48 46 43 41 45 50 54 54 Dewpt 45 46 35 33 38 39 38 38 37 37 38 38 38 37 39 38 36 39 39 39 37 RH 86 60 28 23 31 51 63 73 79 68 57 51 54 65 76 82 82 79 66 57 52 Wind dir S SW SW SW W NW NW W W W NW NW NW NW NW NW NW NW NW NW NW Wind spd 11 13 18 16 13 12 10 10 8 10 11 11 11 9 6 6 9 11 14 14 13 Wind gust 24 28 27 24 25 Clouds B1 FW FW SC B1 B1 B1 B2 OV B1 B2 B2 B2 OV OV OV OV OV B2 OV B2 PoP 12hr 20 60 40 60 70 QPF 12hr 0 0.04 0.03 0.03 0.11 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C L C C C C C C L L C C L L C Tstms S Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 Sun 05/18/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 40 51 34 59 38 57 36 51 Temp 47 41 46 51 43 36 55 57 46 39 53 53 44 37 50 50 Dewpt 39 35 38 36 33 29 35 36 37 34 38 37 39 33 37 36 PWind dir NW NW W W S W E NE Wind char GN BZ GN LT LT LT LT GN Avg clouds OV B2 B2 B2 B1 SC B1 B1 B2 B2 B1 B2 B2 B2 B2 B2 PoP 12hr 50 60 10 30 50 70 60 70 Rain shwrs C C C L C C C C L L C L L Tstms S S $$ http://www.weather.gov/greatfalls