Point Forecast Matrices
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
973 FOUS55 KTFX 150833 PFMTFX Point Forecast Matrices National Weather Service Great Falls MT 233 AM MDT Thu May 15 2025 MTZ312-152200- Great Falls-Cascade MT 47.47N 111.38W Elev. 3663 ft 233 AM MDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 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 56 40 62 42 65 Temp 45 44 46 49 53 54 47 43 42 41 46 54 59 61 53 48 46 43 50 59 63 63 Dewpt 39 39 41 41 41 40 38 37 36 36 38 39 37 38 40 41 40 38 38 38 38 39 RH 79 82 83 74 64 59 71 79 79 82 73 57 44 42 61 77 79 82 63 45 39 41 Wind dir SW W W NW NW NW NW NW W SW W W N S SE SW SW SW SW SW S E Wind spd 10 10 14 17 14 13 10 6 5 4 4 4 4 5 5 5 5 5 6 6 6 10 Clouds B2 B2 OV B2 B2 B1 B1 B1 B1 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 PoP 12hr 80 50 50 40 50 QPF 12hr 0.07 0.01 0.01 0.01 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C D C L C C S C C C C C C C C C C C C S Tstms S Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 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 44 55 41 56 42 63 40 64 Temp 51 45 52 52 46 42 51 54 46 43 59 60 46 41 57 63 Dewpt 42 41 44 43 41 38 37 34 35 35 35 32 32 29 32 33 PWind dir E NE NW W SW W W W Wind char GN GN GN GN GN BZ BZ BZ Avg clouds B1 B2 B2 OV B2 B2 B1 B1 B1 SC SC B1 SC FW SC B1 PoP 12hr 40 80 70 50 20 40 20 30 Rain L L C C C S Rain shwrs S C D S C S S C Tstms S $$ MTZ303-152200- Cut Bank-Glacier MT 48.60N 112.39W Elev. 3838 ft 233 AM MDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 54 35 60 38 62 Temp 44 43 43 47 51 52 45 40 37 35 43 54 59 59 50 45 41 39 46 56 60 61 Dewpt 38 39 39 38 38 36 35 36 34 33 35 35 36 37 38 38 36 34 34 33 33 33 RH 79 86 86 71 61 54 68 85 89 92 73 48 42 44 63 76 82 82 63 42 36 35 Wind dir NW NW NW NW NW N N NW NW NW NW N S SW W W W W W SW S SE Wind spd 13 17 21 23 21 19 12 8 5 4 4 5 6 9 8 6 5 5 5 6 8 9 Wind gust 32 33 32 Clouds B2 OV B2 B2 B1 SC SC SC SC SC SC B1 B1 B2 OV B2 B1 SC SC B1 B1 B1 PoP 12hr 60 20 40 40 40 QPF 12hr 0.05 0 0.03 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C S S C C C C C C S S C C S Obvis PF PF Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 40 55 39 58 40 60 38 61 Temp 48 41 51 52 44 39 54 57 45 41 56 58 44 38 56 59 Dewpt 38 37 42 40 39 36 35 33 34 33 32 31 31 29 30 30 PWind dir E NE NW W W W W W Wind char LT GN GN GN GN BZ BZ BZ Avg clouds B1 B2 B2 B2 B2 B1 B1 B1 SC SC SC B1 B1 SC B1 B1 PoP 12hr 30 70 50 30 20 40 30 40 Rain L L C C C C S Rain shwrs S C S C C S C C $$ MTZ319-152200- Helena-Lewis & Clark MT 46.61N 111.96W Elev. 3893 ft 233 AM MDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 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 57 40 62 41 66 Temp 45 42 46 51 53 55 50 46 43 40 46 54 59 60 53 49 45 41 47 57 63 64 Dewpt 37 37 38 38 39 39 38 37 36 36 37 36 37 40 39 39 38 37 37 39 39 38 RH 73 82 73 61 59 55 63 71 76 85 71 50 44 47 59 68 76 85 68 51 41 38 Wind dir W W W W N N NW W W W W NE SW SW W SW SW SW S SE SE E Wind spd 8 5 8 10 10 10 5 3 2 1 1 2 3 5 4 2 2 1 1 3 4 5 Wind gust 20 20 Clouds B2 OV OV OV B2 B1 B1 B1 B1 SC SC B1 B2 B2 B2 B2 B1 B1 SC B1 B2 B2 PoP 12hr 80 40 50 50 50 QPF 12hr 0.04 0.01 0.01 0.04 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L L L C S S S C C C C S S S S C C C Tstms S S S S S S Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 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 47 55 42 57 42 64 40 66 Temp 53 47 52 53 48 42 52 56 47 42 58 61 48 40 56 65 Dewpt 41 43 44 41 39 37 36 33 34 35 36 32 32 31 32 33 PWind dir NE NW NW NW W W W W Wind char LT LT GN GN GN GN GN GN Avg clouds B2 B2 OV OV B2 B2 B1 B1 B1 SC SC B1 SC FW SC B1 PoP 12hr 50 90 70 50 30 50 20 30 Rain D L C C C C Rain shwrs C C D S C S S C Tstms S S $$ MTZ326-152200- Bozeman-Gallatin MT 45.78N 111.16W Elev. 4475 ft 233 AM MDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 56 35 60 38 64 Temp 40 39 42 48 52 53 46 41 38 37 45 52 56 58 49 45 41 39 45 56 62 62 Dewpt 38 37 37 38 39 38 38 37 36 35 39 37 37 42 40 40 39 37 39 40 39 40 RH 92 92 82 68 61 57 73 85 92 92 79 56 49 55 71 82 92 92 79 55 43 44 Wind dir W SW W W NW NW W SW SW S W NW W W SW SW S S S SW S E Wind spd 5 4 5 5 6 8 3 2 1 1 1 2 3 4 2 2 2 2 2 1 2 5 Clouds OV OV OV B2 B2 B1 B1 B2 B1 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 PoP 12hr 70 30 50 60 50 QPF 12hr 0.05 0.03 0.01 0.18 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L C C S C C L L C C S S C C L Tstms S S S S S Obvis PF PF PF Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 42 55 38 52 37 61 35 63 Temp 48 43 52 52 44 39 47 52 42 38 54 59 44 36 53 62 Dewpt 41 40 44 43 40 37 37 35 36 34 37 37 35 31 34 36 PWind dir E N NW W SW W W SW Wind char LT LT LT LT LT GN LT LT Avg clouds B2 B2 OV OV OV B2 B2 B2 B1 B1 B1 B1 B1 SC SC B1 PoP 12hr 60 90 80 60 40 50 30 30 Rain L D L L L C S Rain shwrs L C D S C C S C Tstms S S S $$ MTZ330-152200- West Yellowstone-Gallatin MT 44.69N 111.11W Elev. 6644 ft 233 AM MDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 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 50 27 52 31 57 Temp 32 30 36 45 48 46 39 34 29 27 35 48 51 47 40 36 33 31 38 51 55 54 Dewpt 31 30 29 28 29 30 32 32 29 27 30 30 30 32 34 34 33 31 32 31 28 31 RH 96100 75 51 47 53 76 92100100 82 49 44 56 79 92100100 79 46 35 41 Wind dir SW SW SW W W W NW S W N SW SW SW SW SW S S S S S S S Wind spd 2 2 2 5 5 5 2 1 1 0 2 5 8 6 4 2 2 2 2 5 5 5 Wind gust 17 Clouds B2 B2 B2 B2 B2 B2 SC B1 B1 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B1 B2 PoP 12hr 60 40 50 70 50 QPF 12hr 0.04 0.01 0.02 0.10 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C S C C L L C C S S C C D Snowshwrs C Tstms C S S Obvis F F F Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 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 33 52 32 49 30 54 28 56 Temp 38 33 49 48 36 32 45 47 35 30 50 51 35 28 51 53 Dewpt 34 33 37 38 35 32 31 29 31 30 32 31 31 27 30 27 PWind dir SE S NW NW W SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 OV OV OV B2 B2 B2 B1 B1 B1 B2 B1 SC SC B1 PoP 12hr 80 100 90 70 50 60 50 30 Rain L D L L L C S Rain shwrs D L D C L C S S C Snow S Snowshwrs C S S Tstms S C S S $$ MTZ328-152200- Dillon-Beaverhead MT 45.26N 112.55W Elev. 5357 ft 233 AM MDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 53 35 53 36 60 Temp 33 32 38 47 51 51 44 40 37 35 41 50 53 51 46 43 39 37 42 53 58 58 Dewpt 30 29 33 35 34 35 36 36 33 32 34 36 37 37 39 39 35 34 37 39 36 36 RH 89 88 82 63 52 54 73 85 85 89 76 58 54 59 76 86 85 89 82 59 44 44 Wind dir S S SW W NW NE E NE S S NW SW SW SW SW SW SW S S S S SE Wind spd 5 5 5 5 5 6 5 4 3 3 2 4 5 5 5 4 4 4 4 6 8 8 Clouds SC B2 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B2 PoP 12hr 40 20 40 40 30 QPF 12hr 0.05 0.01 0.05 0.07 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S C C C C C C L Snowshwrs S Tstms S S S S S S S Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 40 50 36 56 36 59 33 62 Temp 46 41 47 48 42 37 49 54 43 36 53 58 42 34 53 61 Dewpt 39 38 42 40 38 34 35 34 34 33 34 31 31 27 31 30 PWind dir E N N NW W W W SW Wind char LT GN GN GN GN GN GN GN Avg clouds B2 B2 OV OV OV B2 B1 B1 B1 SC SC B1 SC FW FW SC PoP 12hr 70 90 70 40 20 40 20 20 Rain L L C C C S Rain shwrs L L D S C S S Tstms S S $$ MTZ305-152200- Havre-Hill MT 48.54N 109.76W Elev. 2585 ft 233 AM MDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 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 39 65 42 66 Temp 44 42 50 58 60 58 50 46 43 41 46 56 62 64 54 49 45 43 50 59 64 64 Dewpt 40 39 41 40 41 41 41 41 40 39 39 40 38 39 40 40 40 39 42 43 41 40 RH 86 89 71 51 49 53 71 83 89 92 76 55 41 40 59 71 82 86 74 55 43 41 Wind dir SW W NW NW NW NW NW NW W W NW NW NW E E SE SE SE SE SE SE SE Wind spd 5 6 12 18 20 19 14 11 10 8 9 8 6 5 5 5 5 6 8 10 12 13 Clouds B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 B2 B2 B1 PoP 12hr 50 30 30 30 60 QPF 12hr 0.04 0 0 0 0.09 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C S S C C C C C C C C L L C Obvis PF Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 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 59 40 58 40 66 39 66 Temp 51 43 56 56 46 41 54 57 47 41 60 62 47 40 58 65 Dewpt 41 37 42 43 44 40 42 37 40 38 40 37 39 36 38 37 PWind dir E E E W SW W W W Wind char GN BZ GN GN GN GN GN BZ Avg clouds B1 B2 B2 B2 B2 B2 B2 B1 B1 SC SC B1 B1 SC B1 B1 PoP 12hr 30 60 70 60 20 50 40 50 Rain C L L C L C S S Rain shwrs C C S C C S C C $$ MTZ314-152200- Lewistown-Fergus MT 47.05N 109.46W Elev. 4144 ft 233 AM MDT Thu May 15 2025 Date Thu 05/15/25 Fri 05/16/25 Sat 05/17/25 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 52 36 57 39 60 Temp 40 41 45 47 48 49 44 41 40 38 42 50 55 56 49 45 41 40 47 54 58 57 Dewpt 38 37 40 41 41 40 38 37 37 35 36 38 39 39 41 41 38 36 38 40 42 41 RH 92 85 82 79 77 71 79 85 89 89 79 63 55 53 74 86 89 85 71 59 55 55 Wind dir W W W NW NW NW NW W W W NW NW NW N SE S S S S SE SE SE Wind spd 9 10 17 19 20 18 13 11 10 9 10 10 8 5 4 5 4 4 4 5 8 10 Wind gust 27 31 32 29 24 Clouds B1 OV B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B1 B2 B2 B2 PoP 12hr 70 30 50 50 70 QPF 12hr 0.09 0 0.01 0.06 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C L C C S S S C C C C C C C C L L C Tstms S Date Sun 05/18/25 Mon 05/19/25 Tue 05/20/25 Wed 05/21/25 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 40 55 38 49 38 58 36 59 Temp 48 41 52 51 44 39 45 48 41 39 54 55 44 37 54 56 Dewpt 39 36 43 44 41 36 36 35 36 34 37 35 34 28 34 34 PWind dir E E N NW W W W W Wind char GN GN GN GN LT GN GN GN Avg clouds B2 B2 B2 OV OV B2 B2 B2 B1 B1 B1 B2 B1 SC SC B1 PoP 12hr 40 80 90 80 40 60 40 50 Rain L L D L C C Rain shwrs C C D D C L C S S C Tstms S S S $$ http://www.weather.gov/greatfalls